Tolerances and tolerance classes for bearings

Bearing tolerances and permissible values for the boundary dimensions and running accuracy of bearings are specified.
These tolerances are prescribed in JIS B 1514-1, JIS B 1514-2, and JIS B 1514-3 (roller bearings - bearing tolerances part 1: radial bearings, part 2: thrust bearings, and part 3: permissible values for chamfer dimensions). (These JIS standards are based on ISO standards.)
Bearing tolerances are standardized by classifying bearings into the following six classes (accuracy in tolerances becomes higher in the order described): 0, 6X, 6, 5, 4 and 2.

Class 0 bearings offer adequate performance for general applications; and, bearings of class 5 or higher are required for demanding applications and operating conditions including those described in Table 7-1 High precision bearing applications.

These tolerances follow ISO standards, but some countries use different names for them. Tolerances for each bearing class, and organizations concerning bearings are listed in Table 7-2 Bearing type and tolerance class.

  • Boundary dimension accuracy (items on shaft and housing mounting dimensions)
    • Tolerances for bore diameter, outside diameter, ring width, assembled bearing width
    • Tolerances for set bore diameter and set outside diameter of rollers
    • Tolerance limits for chamfer dimensions
    • Permissible values for width variation
    • Tolerance and permissible values for tapered bore
  • Running accuracy (items on runout of rotating elements)
    • Permissible values for radial and axial runout of inner and outer rings
    • Permissible values for perpendicularity of inner ring face
    • Permissible values for perpendicularity of outer ring outside surface
    • Permissible values for thrust bearing raceway thickness

Accuracies for dimensions and running of each bearing type are listed in
Tables 7-3 Radial bearing tolerances (tapered roller bearings excluded) = JIS B 1514-1 =,
Tables 7-4 Tolerances for measuring instrument ball bearings (inch series) = ANSI/ABMA standards = (reference),
Tables 7-5 Tolerances for metric series tapered roller bearings = JIS B 1514-1 =,
Tables 7-6 Tolerances for metric series double-row and four-row tapered roller bearings (class 0) = BAS 1002 =,
Tables 7-7 Tolerances and permissible values for inch series tapered roller bearings = ANSI/ABMA 19 =,
Table 7-8 Tolerances for metric J series tapered roller bearings1),
Tables 7-9 Tolerances for thrust ball bearings = JIS B 1514-2 =,
Tables 7-10 Tolerances for spherical thrust roller bearings (class 0) = JIS B 1514-2 =;
and, tolerances for tapered bore and limit values for chamfer dimensions of radial bearings are in
Tables 7-11 Tolerances and permissible values for tapered bores of radial bearings (class 0 ⋅⋅⋅ JIS B 1514-1) and
7-12 Tolerances and permissible values for flanged radial ball bearings.

Table 7-1 High precision bearing applications

Required performanceApplicationsTolerance class
High accuracy in runout is required for rolling elements. Acoustic / visual equipment spindles (VTR, tape recorders) P5, P4
Radar / parabola antenna slewing shafts P4
Machine tool spindles P5, P4, P2, ABEC9
Computers, magnetic disc spindles P5, P4, P2, ABEC9
Aluminum foil roll necks P5
Multi-stage mill backing bearings P4
High speed rotation Dental spindles P2, ABMA5P, ABMA7P
Superchargers P5, P4
Jet engine spindles and accessories P5, P4
Centrifugal separators P5, P4
LNG pumps P5
Turbo molecular pump spindles and touch-down P5, P4
Machine tool spindles P5, P4, P2, ABEC9
Tension reels P5, P4
Low friction or low friction variation is required. Control equipment (synchronous motors, servomotors, gyro gimbals) P4, ABMA7P
Measuring instruments P5
Machine tool spindles P5, P4, P2, ABEC9

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Table 7-2 Bearing type and tolerance class

Bearing typeApplied standardsApplied tolerance classTolerance table
Deep groove ball bearing JIS B 1514-1 Class 0 - Class 6 Class 5 Class 4 Class 2 Table 7-3
Angular contact ball bearing Class 0 - Class 6 Class 5 Class 4 Class 2
Self-aligning ball bearing Class 0 - - - - -
Cylindrical roller bearing Class 0 - Class 6 Class 5 Class 4 Class 2
Needle roller bearing (machined ring type) JIS B 1536-1 Class 0 - - - - -
Tapered roller bearingMetric series (single-row) JIS B 1514-1 Class 0 Class 6X (Class 6) Class 5 Class 4 Class 2 Table 7-5
Metric series (double or four-row) BAS 1002 Class 0 - - - - - Table 7-6
Inch series ANSI/ABMA Class4 - Class 2 Class 3 Class 0 Class 00 Table 7-7
Metric series (J-series) Class PK - Class PN Class PC Class PB - Table 7-8
Spherical roller bearing JIS B 1514-1 Class 0 - - - - - Table 7-3
Thrust ball bearing JIS B 1514-2 Class 0 - Class 6 Class 5 Class 4 - Table 7-9
Spherical thrust roller bearing Class 0 - - - - - Table 7-10
Precision ball screw support bearing JTEKT standards - - - Class P5Z Class P4Z - -
Double direction angular contact thrust ball bearing - - - Equivalent to class 5 Equivalent to class 4 - -
(Reference) Class comparisonISORadial bearing ISO 492 Normal Class Class 6X Class 6 Class 5 Class 4 Class 2 -
Thrust bearing ISO 199 Normal Class - Class 6 Class 5 Class 4 - -
DINRadial and thrust bearings DIN 620 Normal Class Class 6X Class 6 Class 5 Class 4 Class 2 -
BS BS 6107
NF NF E 22-335
ANSIRadial bearing ABMA std. 20 ABEC 1 - ABEC 3 ABEC 5 ABEC 7 ABEC 9 -
RBEC 1 - RBEC 3 RBEC 5 - -
Instrument ball bearing ABMA std. 12 - - Class 3P Class 5P Class 7P Class 9P Table 7-4
ABMA Class 5T Class 7T
Tapered roller bearing ABMA std. 19 Class 4 - Class 2 Class 3 Class 0 Class 00 Table 7-7
Class K - Class N Class C Class B Class A

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(Reference) Standards and organizations concerned with bearings

JIS : Japanese Industrial Standard
BAS : The Japan Bearing Industrial Association Standard
ISO : International Organization for Standardization
ANSI : American National Standards Institute, Inc.
ABMA : American Bearing Manufactures Association
DIN : Deutsches Institut für Normung
BS : British Standards Institution
NF : Association Francaise de Normalisation

Table 7-3 Radial bearing tolerances (tapered roller bearings excluded) = JIS B 1514-1 =

(1) Inner ring (bore diameter)

Unit : μm
Nominal bore diameter
d
mm
Single plane mean bore diameter deviation
Δdmp
Single bore diameter deviation
Δds1)
Single planebore diameter variation VdspMean bore diameter variation
Vdmp
Diameter series 7,8,9Diameter series 0, 1Diameter series 2, 3, 4Dia. series1)
class 0class 6class 5class 4class 2class 4class 2class 0class 6class 5class 4class 0class 6class 5class 4class 0class 6class 5class 4class 2class 0class 6class 5class 4class 2
overup toupperlowerupperlowerupperlowerupperlowerupperlowerupperlowerupperlowermax.max.max.max.max.
-0.6 0 -8 0 -7 0 -5 0 -4 0 -2.5 0 -4 0 -2.5 10 9 5 4 8 7 4 3 6 5 4 3 2.5 6 5 3 2 1.5
0.62.5 0 -8 0 -7 0 -5 0 -4 0 -2.5 0 -4 0 -2.5 10 9 5 4 8 7 4 3 6 5 4 3 2.5 6 5 3 2 1.5
2.510 0 -8 0 -7 0 -5 0 -4 0 -2.5 0 -4 0 -2.5 10 9 5 4 8 7 4 3 6 5 4 3 2.5 6 5 3 2 1.5
1018 0 -8 0 -7 0 -5 0 -4 0 -2.5 0 -4 0 -2.5 10 9 5 4 8 7 4 3 6 5 4 3 2.5 6 5 3 2 1.5
1830 0 -10 0 -8 0 -6 0 -5 0 -2.5 0 -5 0 -2.5 13 10 6 5 10 8 5 4 8 6 5 4 2.5 8 6 3 2.5 1.5
3050 0 -12 0 -10 0 -8 0 -6 0 -2.5 0 -6 0 -2.5 15 13 8 6 12 10 6 5 9 8 6 5 2.5 9 8 4 3 1.5
5080 0 -15 0 -12 0 9 0 -7 0 -4 0 -7 0 -4 19 15 9 7 19 15 7 5 11 9 7 5 4 11 9 5 3.5 2
80120 0 -20 0 -15 0 -10 0 -8 0 -5 0 -8 0 -5 25 19 10 8 25 19 8 6 15 11 8 6 5 15 11 5 4 2.5
120150 0 -25 0 -18 0 -13 0 -10 0 -7 0 -10 0 -7 31 23 13 10 31 23 10 8 19 14 10 8 7 19 14 7 5 3.5
150180 0 -25 0 -18 0 -13 0 -10 0 -7 0 -10 0 -7 31 23 13 10 31 23 10 8 19 14 10 8 7 19 14 7 5 3.5
180250 0 -30 0 -22 0 -15 0 -12 0 -8 0 -12 0 -8 38 28 15 12 38 28 12 9 23 17 12 9 8 23 17 8 6 4
250315 0 -35 0 -25 0 -18 0 -15 - - 0 -15 - - 44 31 18 15 44 31 14 11 26 19 14 11 - 26 19 9 8 -
315400 0 -40 0 -30 0 -23 0 -18 - - 0 -18 - - 50 38 23 18 50 38 18 14 30 23 18 14 - 30 23 12 9 -
400500 0 -45 0 -35 0 -28 0 -23 - - 0 -23 - - 56 44 28 23 56 44 21 17 34 26 21 17 - 34 26 14 12 -
500630 0 -50 0 -40 0 -35 - - - - - - - - 63 50 35 - 63 50 26 - 38 30 26 - - 38 30 18 - -
630800 0 -75 0 -50 0 -45 - - - - - - - - 94 63 45 - 94 63 34 - 56 38 34 - - 56 38 23 - -
8001000 0 -100 0 -60 0 -60 - - - - - - - - 125 75 60 - 125 75 45 - 75 45 45 - - 75 45 30 - -
10001250 0 -125 0 -75 0 -75 - - - - - - - - 156 94 75 - 156 94 56 - 94 56 56 - - 94 56 38 - -
12501600 0 -160 - - - - - - - - - - - - 200 - - - 200 - - - 120 - - - - 120 - - - -
16002000 0 -200 - - - - - - - - - - - - 250 - - - 250 - - - 150 - - - - 150 - - - -

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(2) Inner ring (running accuracy and width)

Unit : μm
Nominal bore diameter
d
mm
Radial runout of assembled bearing inner ring
Kia
Perpendicularity of inner ring face with respect to the bore
Sd
Axial runout of assembled bearing inner ring
Sia2)
Single inner ring width deviation
ΔBs
Single inner ring width deviation
ΔBs3)
Inner ring width variation
VBs
class 0class 6class 5class 4class 2class 5class 4class 2class 5class 4class 2class 0class 6class 5class 4class 2class 04)class 64)class 54)class 4, 2class 0class 6class 5class 4class 2
overup tomax.max.max.upperlowerupperlowerupperlowerupperlowerupperlowerupperlowerupperlowerupperlowerupperlowermax.
-0.6 10 5 4 2.5 1.5 7 3 1.5 7 3 1.5 0 -40 0 -40 0 -40 0 -40 0 -40 - - - - 0 -250 0 -250 12 12 5 2.5 1.5
0.62.5 10 5 4 2.5 1.5 7 3 1.5 7 3 1.5 0 -40 0 -40 0 -40 0 -40 0 -40 - - - - 0 -250 0 -250 12 12 5 2.5 1.5
2.510 10 6 4 2.5 1.5 7 3 1.5 7 3 1.5 0 -120 0 -120 0 -40 0 -40 0 -40 0 -250 0 -250 0 -250 0 -250 15 15 5 2.5 1.5
1018 10 7 4 2.5 1.5 7 3 1.5 7 3 1.5 0 -120 0 -120 0 -80 0 -80 0 -80 0 -250 0 -250 0 -250 0 -250 20 20 5 2.5 1.5
1830 13 8 4 3 2.5 8 4 1.5 8 4 2.5 0 -120 0 -120 0 -120 0 -120 0 -120 0 -250 0 -250 0 -250 0 -250 20 20 5 2.5 1.5
30501510542.5841.5842.50-1200-1200-1200-1200-1200-2500-2500-2500-2502020531.5
5080 20 10 5 4 2.5 8 5 1.5 8 5 2.5 0 -150 0 -150 0 -150 0 -150 0 -150 0 -380 0 -380 0 -250 0 -250 25 25 6 4 1.5
80120 25 13 6 5 2.5 9 5 2.5 9 5 2.5 0 -200 0 -200 0 -200 0 -200 0 -200 0 -380 0 -380 0 -380 0 -380 25 25 7 4 2.5
120150 30 18 8 6 2.5 10 6 2.5 10 7 2.5 0 -250 0 -250 0 -250 0 -250 0 -250 0 -500 0 -500 0 -380 0 -380 30 30 8 5 2.5
150180 30 18 8 6 5 10 6 4 10 7 5 0 -250 0 -250 0 -250 0 -250 0 -250 0 -500 0 -500 0 -380 0 -380 30 30 8 5 4
180250 40 20 10 8 5 11 7 5 13 8 5 0 -300 0 -300 0 -300 0 -300 0 -300 0 -500 0 -500 0 -500 0 -500 30 30 10 6 5
250315 50 25 13 10 - 13 8 - 15 9 - 0 -350 0 -350 0 -350 0 -350 - - 0 -500 0 -500 0 -500 - - 35 35 13 8 -
315400 60 30 15 13 - 15 9 - 20 12 - 0 -400 0 -400 0 -400 0 -400 - - 0 -630 0 -630 0 -630 - - 40 40 15 9 -
400500 65 35 20 15 - 18 11 - 25 15 - 0 -450 0 -450 0 -450 0 -450 - - - - - - - - - - 50 45 18 11 -
500630 70 40 25 - - 25 - - 30 - - 0 -500 0 -500 0 -500 - - - - - - - - - - - - 60 50 20 - -
630800 80 50 30 - - 30 - - 35 - - 0 -750 0 -750 0 -750 - - - - - - - - - - - - 70 60 23 - -
8001000 90 60 40 - - 40 - - 45 - - 0 -1000 0 -1000 0 -1000 - - - - - - - - - - - - 80 60 35 - -
10001250 100 70 50 - - 50 - - 60 - - 0 -1250 0 -1250 0 -1250 - - - - - - - - - - - - 100 60 45 - -
12501600 120 - - - - - - - - - - 0 -1600 - - - - - - - - - - - - - - - - 120 - - - -
16002000 140 - - - - - - - - - - 0 -2000 - - - - - - - - - - - - - - - - 140 - - - -

[Notes]
1) These shall be applied to bearings of diameter series 0, 1, 2, 3 and 4.
2) These shall be applied to deep groove ball bearings and angular contact ball bearings.
3) These shall be appplied to individual bearing rings manufactured for matched pair or stack bearings.
4) Also applicable to the inner ring with tapered bore of d ≧ 50mm.

[Remark]Values in Italics are prescribed in JTEKT standards.

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a_61_001.png

(3) Outer ring (outside diameter)

Unit : μm
Nominal outside dia.
D
mm
Single plane mean outside diameter deviation
ΔDmp
Single outside diameter deviation
ΔDs1)
Single planeoutside diameter variationVDspMean outside diameter variation
VDmp
Diameter series 7, 8, 9Diameter series 0, 1Diameter series 2, 3, 4Dia. series1)Shielded/sealed type
Diameter series
2,3,40,1,2,3,4
class 0class 6class 5class 4class 2class 45)class 2class 02)class 62)class 55)class 45)class 02)class 62)class 55)class 45)class 02)class 62)class 55)class 45)class 2class 02)class 62)class 02)class 62)class 5class 4class 2
overup toupperlowerupperlowerupperlowerupperlowerupperlowerupperlowerupperlowermax.max.max.max.max.max.
-2.5 0 -8 0 -7 0 -5 0 -4 0 -2.5 0 -4 0 -2.5 10 9 5 4 8 7 4 3 6 5 4 3 2.5 10 9 6 5 3 2 1.5
2.56 - -8 0 -7 0 -5 0 -4 0 -2.5 0 -4 0 -2.5 10 9 5 4 8 7 4 3 6 5 4 3 2.5 10 9 6 5 3 2 1.5
618 0 -8 0 -7 0 -5 0 -4 0 -2.5 0 -4 0 -2.5 10 9 5 4 8 7 4 3 6 5 4 3 2.5 10 9 6 5 3 2 1.5
1830 0 -9 0 -8 0 -6 0 -5 0 -4 0 -5 0 -4 12 10 6 5 9 8 5 4 7 6 5 4 4 12 10 7 6 3 2.5 2
3050 0 -11 0 -9 0 -7 0 -6 0 -4 0 -6 0 -4 14 11 7 6 11 9 5 5 8 7 5 5 4 16 13 8 7 4 3 2
5080 0 -13 0 -11 0 -9 0 -7 0 -4 0 -7 0 -4 16 14 9 7 13 11 7 5 10 8 7 5 4 20 16 10 8 5 3.5 2
80120 0 -15 0 -13 0 -10 0 -8 0 -5 0 -8 0 -5 19 16 10 8 19 16 8 6 11 10 8 6 5 26 20 11 10 5 4 2.5
120150 0 -18 0 -15 0 -11 0 -9 0 -5 0 -9 0 -5 23 19 11 9 23 19 8 7 14 11 8 7 5 30 25 14 11 6 5 2.5
150180 0 -25 0 -18 0 -13 0 -10 0 -7 0 -10 0 -7 31 23 13 10 31 23 10 8 19 14 10 8 7 38 30 19 14 7 5 3.5
180250 0 -30 0 -20 0 -15 0 -11 0 -8 0 -11 0 -8 38 25 15 11 38 25 11 8 23 15 11 8 8 - - 23 15 8 6 4
250315 0 -35 0 -25 0 -18 0 -13 0 -8 0 -13 0 -8 44 31 18 13 44 31 14 10 26 19 14 10 8 - - 26 19 9 7 4
315400 0 -40 0 -28 0 -20 0 -15 0 -10 0 -15 0 -10 50 35 20 15 50 35 15 11 30 21 15 11 10 - - 30 21 10 8 5
400500 0 -45 0 -33 0 -23 0 -17 - - 0 -17 - - 56 41 23 17 56 41 17 13 34 25 17 13 - - - 34 25 12 9 -
500630 0 -50 0 -38 0 -28 0 -20 - - 0 -20 - - 63 48 28 20 63 48 21 15 38 29 21 15 - - - 38 29 14 10 -
630800 0 -75 0 -45 0 -35 - - - - - - - - 94 56 35 - 94 56 26 - 55 34 26 - - - - 55 34 18 - -
8001000 0 -100 0 -60 0 -50 - - - - - - - - 125 75 50 - 125 75 38 - 75 45 38 - - - - 75 45 25 - -
10001250 0 -125 0 -75 0 -63 - - - - - - - - 156 94 63 - 156 94 47 - 94 56 47 - - - - 94 56 31 - -
12501600 0 -160 0 -90 0 -80 - - - - - - - - 200 113 80 - 200 113 60 - 120 68 60 - - - - 120 68 40 - -
16002000 0 -200 0 -120 - - - - - - - - - - 250 150 - - 250 150 - - 150 90 - - - - - 150 90 - - -
20002500 0 -250 - - - - - - - - - - - - 313 - - - 313 - - - 188 - - - - - - 188 - - - -

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(4) Outer ring (running accuracy and width)

Unit:µm
Nominal outside dia.
D
mm
Radial runout of assembled bearing outer ring
Kea
perpendicularity of outer ring outside surface with respect to the face
SD4)
axial runout of assembled bearing outer ring
Sea3)4)
Ring width variation
ΔCs3)
Ring width variation
VCs3)
class 0class 6class 5class 4class 2class 5class 4class 2class 5class 4class 2classes 0,6,5,4,2classes 0,6class 5class 4class 2
overup tomax.max.max.upperlowermax.
-2.5 15 8 5 3 1.5 8 4 1.5 8 5 1.5 Shall conform to the tolerance ΔBs on d of the same bearing Shall conform to the tolerance VBs on d of the same bearing 5 2.5 1.5
2.56 15 8 5 3 1.5 8 4 1.5 8 5 1.5 5 2.5 1.5
618 15 8 5 3 1.5 8 4 1.5 8 5 1.5 5 2.5 1.5
1830 15 9 6 4 2.5 8 4 1.5 8 5 2.5 5 2.5 1.5
3050 20 10 7 5 2.5 8 4 1.5 8 5 2.5 5 2.5 1.5
5080 25 13 8 5 4 8 4 1.5 10 5 4 6 3 1.5
80120 35 18 10 6 5 9 5 2.5 11 6 5 8 4 2.5
120150 40 20 11 7 5 10 5 2.5 13 7 5 8 5 2.5
150180 45 23 13 8 5 10 5 2.5 14 8 5 8 5 2.5
180250 50 25 15 10 7 11 7 4 15 10 7 10 7 4
250315 60 30 18 11 7 13 8 5 18 10 7 11 7 5
315400 70 35 20 13 8 13 10 7 20 13 8 13 8 7
400500 80 40 23 15 - 15 12 - 23 15 - 15 9 -
500630 100 50 25 18 - 18 13 - 25 18 - 18 11 -
630800 120 60 30 - - 20 - - 30 - - 20 - -
8001000 140 75 40 - - 23 - - 40 - - 23 - -
10001250 160 85 45 - - 30 - - 45 - - 30 - -
12501600 190 95 60 - - 45 - - 60 - - 45 - -
16002000 220 110 - - - - - - - - - - - -
20002500 250 - - - - - - - - - - - - -

[Notes]
1) These shall be applied to bearings of diameter series 0, 1, 2, 3 and 4.
2) Shall be applied when locating snap ring is not fitted.
3) These shall be applied to deep groove ball bearings and angular contact ball bearings.
4) These shall not be applied to flanged bearings.
5) These shall not be applied to shielded bearings and sealed bearings.

[Remark]Values in Italics are prescribed in JTEKT standards.

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a_63_001.png

(Refer.) Table 7-4 Tolerances for measuring instrument ball bearings (inch series) = ANSI/ABMA standards = (reference)

(1) Inner ring and outer ring width

Unit : μm
Nominal bore dia.
d
mm
Single plane mean bore diameter deviation
Δdmp
Single bore diameter deviation
Δds
Single plane bore diameter variation
Vdsp
Mean bore diameter variation
Vdmp
Radial runout of assembled bearing inner ring
Kia
Axial runout of assembled bearing inner ring
Sia
Perpendicularity of inner ring face with respect to the bore
Sd
Single inner or outer ring width deviation
ΔBs , ΔCs
Inner or outer ring width variation
VBs ,VCs
Classes
5P, 7P
Class
9P
Classes
5P, 7P
Class
9P
Classes
5P, 7P
Class
9P
Classes
5P, 7P
Class
9P
Class
5P
Class
7P
Class
9P
Class
5P
Class
7P
Class
9P
Class
5P
Class
7P
Class
9P
Classes
5P, 7P, 9P
Class
5P
Class
7P
Class
9P
overup toupperlowerupperlowerupperlowerupperlowermax.max.max.max.max.upperlowermax.
-10 0 -5.1 0 -2.5 0 -5.1 0 -2.5 2.5 1.3 2.5 1.3 3.8 2.5 1.3 7.6 2.5 1.3 7.6 2.5 1.3 0 -25.4 5.1 2.5 1.3
1018 0 -5.1 0 -2.5 0 -5.1 0 -2.5 2.5 1.3 2.5 1.3 3.8 2.5 1.3 7.6 2.5 1.3 7.6 2.5 1.3 0 -25.4 5.1 2.5 1.3
1830 0 -5.1 0 -2.5 0 -5.1 0 -2.5 2.5 1.3 2.5 1.3 3.8 3.8 2.5 7.6 3.8 1.3 7.6 3.8 1.3 0 -25.4 5.1 2.5 1.3

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(2) Outer ring

Unit : μm
Nominal outside dia.
D
mm
Single plane mean outside diameter deviation
ΔDmp
Single outside diameter deviation
ΔDs
Single plane outside diameter variation
VDsp
Mean outside diameter variation
VDmp
Radial runout of assembled bearing outer ring
Kea
Axial runout of assembled bearing outer ring
Sea
Perpendicularity of outer ring outside surface with respect to the face
SD
Single outer ring flange outside diameter deviation
ΔD1s
Single outer ring flange width deviation
ΔC1s
Class
5P, 7P
Class
9P
Classes
5P, 7P
Class
9P
Classes
5P, 7P
Class
9P
Classes
5P, 7P
Class
9P
Class
5P
Class
7P
Class
9P
Class
5P
Class
7P
Class
9P
Class
5P
Class
7P
Class
9P
Classes
5P, 7P
Classes
5P, 7P
Open typeShielded/sealed typeOpen typeOpen typeShielded/sealed typeOpen typeOpen typeShielded/sealed typeOpen type
overup toupperlowerupperlowerupperlowerupperlowerupperlowermax.max.max.max.max.upperlowerupperlower
-18 0 -5.1 0 -2.5 0 -5.1 +1 -6.1 0 -2.5 2.5 5.1 1.3 2.5 5.1 1.3 5.1 3.8 1.3 7.6 5.1 1.3 7.6 3.8 1.3 0 -25.4 0 -50.8
1830 0 -5.1 0 -3.8 0 -5.1 +1 -6.1 0 -3.8 2.5 5.1 2 2.5 5.1 2 5.1 3.8 2.5 7.6 5.1 2.5 7.6 3.8 1.3 0 -25.4 0 -50.8
3050 0 -5.1 0 -3.8 0 -5.1 +1 -6.1 0 -3.8 2.5 5.1 2 2.5 5.1 2 5.1 5.1 2.5 7.6 5.1 2.5 7.6 3.8 1.3 0 -25.4 0 -50.8

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a_65_001.png

Table 7-5 Tolerances for metric series tapered roller bearings = JIS B 1514-1 =

(1) Inner ring

Unit : μm
Nominal bore diameter
d
mm
Single plane mean bore diameter deviation
Δdmp
Single bore diameter deviation
Δds
Single plane bore diameter variation
Vdsp
Mean bore diameter variation
Vdmp
Radial runout of assembled bearing inner ring
Kia
perpendicularity of inner ring face with respect to the bore
Sd
axial runout of assembled bearing inner ring
Sia
Single inner ring width deviation
ΔBs
classes 0, 6Xclasses 6, 5class 4class 2class 4class 2classes 0, 6Xclass 6class 5class 4class 2classes 0, 6Xclass 6class 5class 4class 2classes 0,6Xclass 6class 5class 4class 2class 5class 4class 2class 4class 2class 0class 6Xclass 6classes 5, 4class 2
overup toupperlowerupperlowerupperlowerupperlowerupperlowerupperlowermax.max.max.max.max.upperlowerupperlowerupperlowerupperlowerupperlower
-10 0 -12 0 -71) 0 -5 0 -4 0 -5 0 -4 12 - 5 4 2.5 9 - 5 4 1.5 15 - 5 3 2 7 3 1.5 3 2 0 -120 0 -50 - - 0 -200 0 -200
1018 0 -12 0 -7 0 -5 0 -4 0 -5 0 -4 12 7 5 4 2.5 9 5 5 4 1.5 15 7 5 3 2 7 3 1.5 3 2 0 -120 0 -50 0 -120 0 -200 0 -200
1830 0 -12 0 -8 0 -6 0 -4 0 -6 0 -4 12 8 6 5 2.5 9 6 5 4 1.5 18 8 5 3 2.5 8 4 1.5 4 2.5 0 -120 0 -50 0 -120 0 -200 0 -200
3050 0 -12 0 -10 0 -8 0 -5 0 -8 0 -5 12 10 8 6 3 9 8 5 5 2 20 10 6 4 2.5 8 4 2 4 2.5 0 -120 0 -50 0 -120 0 -240 0 -240
5080 0 -15 0 -12 0 -9 0 -5 0 -9 0 -5 15 12 9 7 4 11 9 6 5 2 25 10 7 4 3 8 5 2 4 3 0 -150 0 -50 0 -150 0 -300 0 -300
80120 0 -20 0 -15 0 -10 0 -6 0 -10 0 -6 20 15 11 8 5 15 11 8 5 2.5 30 13 8 5 3 9 5 2.5 5 3 0 -200 0 -50 0 -200 0 -400 0 -400
120180 0 -25 0 -18 0 -13 0 -7 0 -13 0 -7 25 18 14 10 7 19 14 9 7 3.5 35 18 11 6 4 10 6 3.5 7 4 0 -250 0 -50 0 -250 0 -500 0 -500
180250 0 -30 0 -22 0 -15 0 -8 0 -15 0 -8 30 22 17 11 7 23 16 11 8 4 50 20 13 8 5 11 7 5 8 5 0 -300 0 -50 0 -300 0 -600 0 -600
250315 0 -35 0 -251) 0 -18 0 -8 0 -18 0 -8 35 25 19 12 8 26 19 13 9 5 60 30 13 9 6 13 8 5.5 9 6 0 -350 0 -50 0 -350 0 -700 0 -700
315400 0 -40 0 -301) - - - - - - - - 40 30 23 - - 30 23 15 - - 70 35 15 - - 15 - - - - 0 -400 0 -50 0 -400 0 -8002) - -
400500 0 -45 0 -351) - - - - - - - - 45 35 28 - - 34 26 17 - - 80 40 20 - - 17 - - - - 0 -450 0 -50 0 -450 0 -9002) - -
500630 0 -60 0 -401) - - - - - - - - 60 40 35 - - 40 30 20 - - 90 50 25 - - 20 - - - - 0 -500 - - 0 -500 0 -11002) - -
630800 0 -75 0 -501) - - - - - - - - 75 50 45 - - 45 38 25 - - 100 60 30 - - 25 - - - - 0 -750 - - 0 -750 0 -16002) - -
8001000 0 -100 0 -601) - - - - - - - - 100 60 60 - - 55 45 30 - - 115 75 37 - - 30 - - - - 0 -1000 - - 0 -1000 0 -20002) - -

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(2-1) Outer ring

Unit : μm
Nominal outside diameter
D
mm
Single plane mean outside diameter deviation
ΔDmp
Single outside diameter deviation
ΔDs
Single plane outside diameter variation
VDsp
Mean outside diameter variation
VDmp
Radial runout of assembled bearing outer ring
Kea
perpendicularity of outer ring outside surface with respect to the face
SD3)
axial runout of assembled bearing outer ring
Sea3)
classes 0, 6Xclasses 6, 5class 4class 2class 4class 2classes 0, 6Xclass 6class 5class 4class 2classes 0, 6Xclass 6class 5class 4class 2classes 0,6Xclass 6class 5class 4class 2class 5class 4class 2class 4class 2
overup toupperlowerupperlowerupperlowerupperlowerupperlowerupperlowermax.max.max.max.max.
-18 0 -12 0 -81) 0 -6 0 -5 0 -6 0 -5 12 - 6 5 4 9 - 5 4 2.5 18 - 6 4 2.5 8 4 1.5 5 2.5
1830 0 -12 0 -8 0 -6 0 -5 0 -6 0 -5 12 8 6 5 4 9 6 5 4 2.5 18 9 6 4 2.5 8 4 1.5 5 2.5
3050 0 -14 0 -9 0 -7 0 -5 0 -7 0 -5 14 9 7 5 4 11 7 5 5 2.5 20 10 7 5 2.5 8 4 2 5 2.5
5080 0 -16 0 -11 0 -9 0 -6 0 -9 0 -6 16 11 8 7 4 12 8 6 5 2.5 25 13 8 5 4 8 4 2.5 5 4
80120 0 -18 0 -13 0 -10 0 -6 0 -10 0 -6 18 13 10 8 5 14 10 7 5 3 35 18 10 6 5 9 5 3 6 5
120150 0 -20 0 -15 0 -11 0 -7 0 -11 0 -7 20 15 11 8 5 15 11 8 6 3.5 40 20 11 7 5 10 5 3.5 7 5
150180 0 -25 0 -18 0 -13 0 -7 0 -13 0 -7 25 18 14 10 7 19 14 9 7 4 45 23 13 8 5 10 5 4 8 5
180250 0 -30 0 -20 0 -15 0 -8 0 -15 0 -8 30 20 15 11 8 23 15 10 8 5 50 25 15 10 7 11 7 5 10 7
250315 0 -35 0 -25 0 -18 0 -9 0 -18 0 -9 35 25 19 14 8 26 19 13 9 5 60 30 18 11 7 13 8 6 10 7
315400 0 -40 0 -28 0 -20 0 -10 0 -20 0 -10 40 28 22 15 10 30 21 14 10 6 70 35 20 13 8 13 10 7 13 8
400500 0 -45 0 -331) - - - - - - - - 45 33 26 - - 34 25 17 - - 80 40 24 - - 17 - - - -
500630 0 -50 0 -381) - - - - - - - - 60 38 30 - - 38 29 20 - - 100 50 30 - - 20 - - - -
630800 0 -75 0 -451) - - - - - - - - 80 45 38 - - 55 34 25 - - 120 60 36 - - 25 - - - -
8001000 0 -100 0 -601) - - - - - - - - 100 60 50 - - 75 45 30 - - 140 75 43 - - 30 - - - -
10001250 0 -125 0 -801) - - - - - - - - 130 75 65 - - 90 56 38 - - 160 85 52 - - 38 - - - -
12501600 0 -160 0 -1001) - - - - - - - - 170 90 90 - - 100 68 50 - - 180 95 62 - - 50 - - - -

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(2-2) Outer ring

Unit : μm
Nominal bore diameter
d
mm
Single outer ring width deviation
ΔCs
class 6Xclasses 0,6,5,4,2
overup toupperlowerupperlower
-10 0 -100 Shall comform to the tolerance ΔBs on d of the same bearing
1018 0 -100
1830 0 -100
3050 0 -100
5080 0 -100
80120 0 -100
120180 0 -100
180250 0 -100
250315 0 -100
315400 0 -100
400500 0 -100
500630 - -
630800 - -
8001000 - -

[Notes]
1) Class 6 values are prescribed in JTEKT standards.
2) These shall be applied to bearings of tolerance class 5.
3) These shall not be applied to flanged bearings.

[Remark]Values in Italics are prescribed in JTEKT standards.

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a_67_001.png

(3) Assembled bearing width and effective width

Unit : μm
Nominal bore diameter
d
mm
Actual bearing width deviation
ΔTs
Actual effective inner sub-unit width deviation
ΔT1s
Actual effective outer ring width deviation
ΔT2s
class 0class 6Xclass 6classes 5, 4class 2class 0class 6Xclasses 5, 4級class 2class 0class 6Xclasses 5, 4級class 2
overup toupperlowerupperlowerupperlowerupperlowerupperlowerupperlowerupperlowerupperlowerupperlowerupperlowerupperlowerupperlowerupperlower
-10 +200 0 +100 0 - - +200 -200 +200 -200 +100 0 +50 0 +100 -100 +100 -100 +100 0 +50 0 +100 -100 +100 -100
1018 +200 0 +100 0 +200 0 +200 -200 +200 -200 +100 0 +50 0 +100 -100 +100 -100 +100 0 +50 0 +100 -100 +100 -100
1830 +200 0 +100 0 +200 0 +200 -200 +200 -200 +100 0 +50 0 +100 -100 +100 -100 +100 0 +50 0 +100 -100 +100 -100
3050 +200 0 +100 0 +200 0 +200 -200 +200 -200 +100 0 +50 0 +100 -100 +100 -100 +100 0 +50 0 +100 -100 +100 -100
5080 +200 0 +100 0 +200 0 +200 -200 +200 -200 +100 0 +50 0 +100 -100 +100 -100 +100 0 +50 0 +100 -100 +100 -100
80120 +200 -200 +100 0 +200 -200 +200 -200 +200 -200 +100 -100 +50 0 +100 -100 +100 -100 +100 -100 +50 0 +100 -100 +100 -100
120180 +350 -250 +150 0 +350 -250 +350 -250 +200 -250 +150 -150 +50 0 +150 -150 +100 -100 +200 -100 +100 0 +200 -100 +100 -150
180250 +350 -250 +150 0 +350 -250 +350 -250 +200 -300 +150 -150 +50 0 +150 -150 +100 -150 +200 -100 +100 0 +200 -100 +100 -150
250315 +350 -250 +200 0 +350 -250 +350 -250 +200 -300 +150 -150 +100 0 +150 -150 +100 -150 +200 -100 +100 0 +200 -100 +100 -150
315400 +400 -400 +200 0 +400 -400 +400 -4001) - - +200 -200 +100 0 +200 -2001) - - +200 -200 +100 0 +200 -2001) - -
400500 +450 -450 +200 0 +400 -400 +450 -4501) - - +225 -225 +100 0 +225 -2251) - - +225 -225 +100 0 +225 -2251) - -
500630 +500 -500 - - +500 -500 +500 -5001) - - - - - - - - - - - - - - - - - -
630800 +600 -600 - - +600 -600 +600 -6001) - - - - - - - - - - - - - - - - - -
8001000 +750 -750 - - +750 -750 +750 -7501) - - - - - - - - - - - - - - - - - -

[Note]1) These shall be applied to bearings of tolerance class 5.

[Remark]Values in Italics are prescribed in JTEKT standards.

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a_68_001.png

Table 7-6 Tolerances for metric series double-row and four-row tapered roller bearings (class 0) = BAS 1002 =

(1) Inner ring, outer ring width and overall width

Unit : μm
Nominal bore diameter
d
mm
Single plane mean bore diameter deviation
Δdmp
Single plane bore diameter variation
Vdsp
Mean bore diameter variation
Vdmp
radial runout of assembled bearing inner ring
Kia
Single outer ring or inner ring width deviation
ΔBs , ΔCs
Actual overall inner rings/outer rings width deviation
Double-row
Ts
Four-row
ΔTs , ΔWs
overup toupperlowermax.max.max.upperlowerupperlowerupperlower
3050 0 -12 12 9 20 0 -120 +240 -240 - -
5080 0 -15 15 11 25 0 -150 +300 -300 - -
80120 0 -20 20 15 30 0 -200 +400 -400 +500 -500
120180 0 -25 25 19 35 0 -250 +500 -500 +600 -600
180250 0 -30 30 23 50 0 -300 +600 -600 +750 -750
250315 0 -35 35 26 60 0 -350 +700 -700 +900 -900
315400 0 -40 40 30 70 0 -400 +800 -800 +1000 -1000
400500 0 -45 45 34 80 0 -450 +900 -900 +1200 -1200
500630 0 -60 60 40 90 0 -500 +1000 -1000 +1200 -1200
630800 0 -75 75 45 100 0 -750 +1500 -1500 - -
8001000 0 -100 100 55 115 0 -1000 +1500 -1500 - -

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(2) Outer ring

Unit : μm
Nominal outside diameter
D
mm
Single plane mean outside diameter deviation
ΔDmp
Single plane outside diameter variation
VDsp
Mean outside diameter variation
VDmp
Radial runout of assembled bearing outer ring
Kea
overup toupperlowermax.max.max.
5080 0 -16 16 12 25
80120 0 -18 18 14 35
120150 0 -20 20 15 40
150180 0 -25 25 19 45
180250 0 -30 30 23 50
250315 0 -35 35 26 60
315400 0 -40 40 30 70
400500 0 -45 45 34 80
500630 0 -50 60 38 100
630800 0 -75 80 55 120
8001000 0 -100 100 75 140
10001250 0 -125 130 90 160
12501600 0 -160 170 100 180

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a_69_001.png

Table 7-7 Tolerances and permissible values for inch series tapered roller bearings = ANSI/ABMA 19 =

(1) Inner ring

Unit : μm
Applied bearing typeNominal bore diameter
d, mm(1/25.4)
Deviation of a single bore diameter Δds
Class 4Class 2Class 3Class 0Class 00
overup toupperlowerupperlowerupperlowerupperlowerupperlower
All types - 76.2(3.0) +13 0 +13 0 +13 0 +13 0 +8 0
76.2(3.0) 266.7(10.5) +25 0 +25 0 +13 0 +13 0 +8 0
266.7(10.5) 304.8(12.0) +25 0 +25 0 +13 0 +13 0 +8 0
304.8(12.0) 609.6(24.0) +51 0 +51 0 +25 0 - - - -
609.6(24.0) 914.4(36.0) +76 0 - - +38 0 - - - -
914.4(36.0) 1219.2(48.0) +102 0 - - +51 0 - - - -
1219.2(48.0) - +127 0 - - +76 0 - - - -

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(2) Outer ring

Unit : μm
Applied bearing typeNominal outside diameter
D, mm(1/25.4)
Deviation of a single outside diameter ΔDs
Class 4Class 2Class 3Class 0Class 00
overup toupperlowerupperlowerupperlowerupperlowerupperlower
All types - 266.7(10.5) +25 0 +25 0 +13 0 +13 0 +8 0
266.7(10.5) 304.8(12.0) +25 0 +25 0 +13 0 +13 0 +8 0
304.8(12.0) 609.6(24.0) +51 0 +51 0 +25 0 - - - -
609.6(24.0) 914.4(36.0) +76 0 +76 0 +38 0 - - - -
914.4(36.0) 1219.2(48.0) +102 0 - - +51 0 - - - -
1219.2(48.0) - +127 0 - - +76 0 - - - -

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(3) Radial runout of assembled bearing inner ring/outer ring

Unit : μm
Applied bearing typeNominal outside diameter
D, mm(1/25.4)
Radial runout of inner ring/outer ring Kia , Kea
Class 4Class 2Class 3Class 0Class 00
overup tomax.max.max.max.max.
All types - 266.7(10.5) 51 38 8 4 2
266.7(10.5) 304.8(12.0) 51 38 8 4 2
304.8(12.0) 609.6(24.0) 51 38 18 - -
609.6(24.0) 914.4(36.0) 76 51 51 - -
914.4(36.0) 1219.2(48.0) 76 - 76 - -
1219.2(48.0) - 76 - 76 - -

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(4) Assembled bearing width and overall width

Unit : μm
Applied bearing typeNominal bore diameter
d, mm(1/25.4)
Nominal outside diameter
D, mm(1/25.4)
Deviation of the actual bearing width and overall width of inner rings/outer rings ΔTs , ΔWs
Class 4Class 2Class 3classes 0,00
overup tooverup toupperlowerupperlowerupperlowerupperlower
Single-row - 101.6(4.0) - - +203 0 +203 0 +203 -203 +203 -203
101.6(4.0) 266.7(10.5) +356 -254 +203 0 +203 -203 +203 -203
266.7(10.5) 304.8(12.0) - - +356 -254 +203 0 +203 -203 +203 -2031)
304.8(12.0) 609.6(24.0) - 508.0(20.0) - - +381 -381 +203 -203 - -
304.8(12.0) 609.6(24.0) 508.0(20.0) - - - +381 -381 +381 -381 - -
609.6(24.0) - - +381 -381 - - +381 -381 - -
Double-row - 101.6(4.0) - - +406 0 +406 0 +406 -406 +406 -406
101.6(4.0) 266.7(10.5) - - +711 -508 +406 -203 +406 -406 +406 -406
266.7(10.5) 304.8(12.0) - - +711 -508 +406 -203 +406 -406 +406 -4061)
304.8(12.0) 609.6(24.0) - 508.0(20.0) - - +762 -762 +406 -406 - -
304.8(12.0) 609.6(24.0) 508.0(20.0) - - - +762 -762 +762 -762 - -
609.6(24.0) - - +762 -762 - - +762 -762 - -
Double-row
(TNA type)
- 127.0(5.0) - - - - +254 0 +254 0 - -
127.0(5.0) - - - - +762 0 +762 0 - -
Four-row Total dimensional range - - +1524 -1524 +1524 -1524 +1524 -1524 +1524 -1524

[Note]1) These shall be applied to bearings of class 0.

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a_71_001.png

Table 7-8 Tolerances for metric J series tapered roller bearings1)

(1) Bore diameter and width of inner ring and assembled bearing width

Unit : μm
Nominal bore diameter
d
mm
Deviation of a single bore diameter
Δds
Deviation of a single inner ring width
ΔBs
Deviation of the actual bearing width
ΔTs
Class PKClass PNClass PCClass PBClass PKClass PNClass PCClass PBClass PKClass PNClass PCClass PB
overup toupperlowerupperlowerupperlowerupperlowerupperlowerupperlowerupperlowerupperlowerupperlowerupperlowerupperlowerupperlower
1018 0 -12 0 -12 0 -7 0 -5 0 -100 0 -50 0 -200 0 -200 +200 0 +100 0 +200 -200 +200 -200
1830 0 -12 0 -12 0 -8 0 -6 0 -100 0 -50 0 -200 0 -200 +200 0 +100 0 +200 -200 +200 -200
3050 0 -12 0 -12 0 -10 0 -8 0 -100 0 -50 0 -200 0 -200 +200 0 +100 0 +200 -200 +200 -200
5080 0 -15 0 -15 0 -12 0 -9 0 -150 0 -50 0 -300 0 -300 +200 0 +100 0 +200 -200 +200 -200
80120 0 -20 0 -20 0 -15 0 -10 0 -150 0 -50 0 -300 0 -300 +200 -200 +100 0 +200 -200 +200 -200
120180 0 -25 0 -25 0 -18 0 -13 0 -200 0 -50 0 -300 0 -300 +350 -250 +150 0 +350 -250 +200 -250
180250 0 -30 0 -30 0 -22 0 -15 0 -200 0 -50 0 -350 0 -350 +350 -250 +150 0 +350 -250 +200 -300
250315 0 -35 0 -35 0 -22 0 -15 0 -200 0 -50 0 -350 0 -350 +350 -250 +200 0 +350 -300 +200 -300

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(2) Outside diameter and width of outer ring and radial runout of assembled bearing inner ring/ outer ring

Unit : μm
Nominal outside diameter
D
mm
Deviation of a single outside diameter
ΔDs
Deviation of a single outer ring width
ΔCs
Radial runout of inner ring/outer ring
Kia, Kea
Class PKClass PNClass PCClass PBClass PKClass PNClass PCClass PBClass PKClass PNClass PCClass PB
overup toupperlowerupperlowerupperlowerupperlowerupperlowerupperlowerupperlowerupperlowermax.max.max.max.
1830 0 -12 0 -12 0 -8 0 -6 0 -150 0 -100 0 -150 0 -150 18 18 5 3
3050 0 -14 0 -14 0 -9 0 -7 0 -150 0 -100 0 -150 0 -150 20 20 6 3
5080 0 -16 0 -16 0 -11 0 -9 0 -150 0 -100 0 -150 0 -150 25 25 6 4
80120 0 -18 0 -18 0 -13 0 -10 0 -200 0 -100 0 -200 0 -200 35 35 6 4
120150 0 -20 0 -20 0 -15 0 -11 0 -200 0 -100 0 -200 0 -200 40 40 7 4
150180 0 -25 0 -25 0 -18 0 -13 0 -200 0 -100 0 -250 0 -250 45 45 8 4
180250 0 -30 0 -30 0 -20 0 -15 0 -250 0 -100 0 -250 0 -250 50 50 10 5
250315 0 -35 0 -35 0 -25 0 -18 0 -250 0 -100 0 -300 0 -300 60 60 11 5
315400 0 -40 0 -40 0 -28 - - 0 -250 0 -100 0 -300 - - 70 70 13 -

[Note]1) Bearings with supplementary code "J" attached at the front of bearing number Ex. JHM720249/JHM720210, and the like

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a_73_001.png

Table 7-9 Tolerances for thrust ball bearings = JIS B 1514-2 =

(1) Shaft race and central race

Unit : μm
Nominal bore diameter of shaft or central race
d or d2,mm
Single plane mean bore diameter deviation
Δdmp or Δd2mp
Single plane bore diameter variation
Vdsp or Vd2sp
Race raceway to back face thickness variation
Si1) 2)
classes 0, 6, 5class 4classes 0, 6, 5class 4class 0class 6class 5class 4
overup toupperlowerupperlowermax.max.
-18 0 -8 0 -7 6 5 10 5 3 2
1830 0 -10 0 -8 8 6 10 5 3 2
3050 0 -12 0 -10 9 8 10 6 3 2
5080 0 -15 0 -12 11 9 10 7 4 3
80120 0 -20 0 -15 15 11 15 8 4 3
120180 0 -25 0 -18 19 14 15 9 5 4
180250 0 -30 0 -22 23 17 20 10 5 4
250315 0 -35 0 -25 26 19 25 13 7 5
315400 0 -40 0 -30 30 23 30 15 7 5
400500 0 -45 0 -35 34 26 30 18 9 6
500630 0 -50 0 -40 38 30 35 21 11 7
630800 0 -75 0 -50 55 40 40 25 13 8
8001000 0 -100 - - 75 - 45 30 15 -
10001250 0 -125 - - 95 - 50 35 18 -

[Notes]
1) Double direction thrust ball bearings shall be included in d of single direction thrust ball bearings of the same diameter series and nominal outside diameter.
2) Applies only to thrust ball bearings and cylindrical roller thrust bearings with 90° contact angle.

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(2) Housing race

Unit : μm
Nominal outside diameter
D
mm
Single plane mean outside diameter deviation
ΔDmp
Single plane outside diameter variation
VDsp
Race raceway to back face thickness variation
Se1)2)
classes 0, 6, 5class 4classes 0, 6, 5class 4classes 0, 6, 5, 4
overup toupperlowerupperlowermax.max.
1018 0 -11 0 -7 8 5 Shall conform to the tolerance Si on d or d2 of the same bearing
1830 0 -13 0 -8 10 6
3050 0 -16 0 -9 12 7
5080 0 -19 0 -11 14 8
80120 0 -22 0 -13 17 10
120180 0 -25 0 -15 19 11
180250 0 -30 0 -20 23 15
250315 0 -35 0 -25 26 19
315400 0 -40 0 -28 30 21
400500 0 -45 0 -33 34 25
500630 0 -50 0 -38 38 29
630800 0 -75 0 -45 55 34
8001000 0 -100 0 -60 75 45
10001250 0 -125 - - 95 -
12501600 0 -160 - - 120 -

[Notes]
1) These shall be applied to race with flat back face only.
2) Applies only to thrust ball bearings and cylindrical roller thrust bearings with 90° contact angle.

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a_74_001.png

(3) Bearing height and central race height

Unit : μm
Nominal bore diameter
d
mm
Single directionDouble direction
Deviation of the actual bearing height
ΔTs
Deviation of the actual bearing height
ΔT1s1)
Deviation of the actual bearing height
ΔT2s1)
Deviation of a single central race height B
ΔBs1)
class 0class 0class 0class 0
overup toupperlowerupperlowerupperlowerupperlower
-30 0 -75 +50 -150 0 -75 0 -50
3050 0 -100 +75 -200 0 -100 0 -75
5080 0 -125 +100 -250 0 -125 0 -100
80120 0 -150 +125 -300 0 -150 0 -125
120180 0 -175 +150 -350 0 -175 0 -150
180250 0 -200 +175 -400 0 -200 0 -175
250315 0 -225 +200 -450 0 -225 0 -200
315400 0 -300 +250 -600 0 -300 0 -250

[Note]
1) Double direction thrust ball bearings shall be included in d of single direction thrust ball bearings of the same diameter series and nominal outside diameter.

[Remark]Values in Italics are prescribed in JTEKT standards.

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Table 7-10 Tolerances for spherical thrust roller bearings (class 0) = JIS B 1514-2 =

(1) Shaft race

Unit : μm
Nominal bore diameter
d
mm
Single plane mean bore diameter deviation
ΔDmp
Single plane bore diameter variation
Vdsp
Refer.
perpendicularity of inner ring face with respect to the bore
Sd
Actual bearing height deviation
ΔTs
overup toupperlowermax.max.upperlower
5080 0 -15 11 25 +150 -150
80120 0 -20 15 25 +200 -200
120180 0 -25 19 30 +250 -250
180250 0 -30 23 30 +300 -300
250315 0 -35 26 35 +350 -350
315400 0 -40 30 40 +400 -400
400500 0 -45 34 45 +450 -450

[Remark]Values in Italics are prescribed in JTEKT standards.

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(2) Housing race

Unit : μm
Nominal outside diameter
D,mm
Single plane mean outside diameter deviation
ΔDmp
overup toupperlower
120180 0 -25
180250 0 -30
250315 0 -35
315400 0 -40
400500 0 -45
500630 0 -50
630800 0 -75
8001000 0 -100

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a_75_001.png

Table 7-11 Tolerances and permissible values for tapered bores of radial bearings (class 0 ⋅⋅⋅ JIS B 1514-1)

a_76_001.png

Theoretical tapered bore

a_76_002.png

Tapered bore with single plane mean bore diameter deviation

(1) Basically tapered bore (taper 1:12)

Unit : μm
Nominal bore diameter
d,mm
ΔdmpΔd1mpΔdmpVdsp1)
overup toupperlowerupperlowermax.
-10 +22 0 +15 0 9
1018 +27 0 +18 0 11
1830 +33 0 +21 0 13
3050 +39 0 +25 0 16
5080 +46 0 +30 0 19
80120 +54 0 +35 0 22
120180 +63 0 +40 0 40
180250 +72 0 +46 0 46
250315 +81 0 +52 0 52
315400 +89 0 +57 0 57
400500 +97 0 +63 0 63
500630 +110 0 +70 0 70
630800 +125 0 +80 0 -
8001000 +140 0 +90 0 -
10001250 +165 0 +105 0 -
12501600 +195 0 +125 0 -

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(2) Basically tapered bore (taper 1:30)

Unit : μm
Nominal bore diameter
d,mm
ΔdmpΔd1mpΔdmpVdsp1)
overup toupperlowerupperlowermax.
-50 +15 0 +30 0 19
5080 +15 0 +30 0 19
80120 +20 0 +35 0 22
120180 +25 0 +40 0 40
180250 +30 0 +46 0 46
250315 +35 0 +52 0 52
315400 +40 0 +57 0 57
400500 +45 0 +63 0 63
500630 +50 0 +70 0 70

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[Note]1) These shall be applied to all radial planes with tapered bore, not be applied to bearings of diameter series 7, 8.

[Remark]

a_76_003.png

Table 7-12 Tolerances and permissible values for flanged radial ball bearings

(1) Tolerances on flange outside diameters

Unit : μm
Nominal outer ring flange outside diameter
D1
(mm)
Deviation of single outer ring flange outside diameter,ΔD1s
Locating flangeNon-locating flange
overup toupperlowerupperlower
-6 0 -36 +220 -36
610 0 -36 +220 -36
1018 0 -43 +270 -43
1830 0 -52 +330 -52
3050 0 -62 +390 -62
5080 0 -74 +460 -74

[notice]There might be exception precision other than the above. In that case please contact JTEKT.

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(2) Tolerances and permissible values on flange widths and permissible values of running accuracies relating to flanges

Unit : μm
Nominal outside diameter
D
(mm)
Deviation of single outer ring flange width
ΔC1s 1)
Variation of outer ring flange width
VC1s1)
Perpendicularity of outer ring outside surface with respect to the flange back face
SD1
Axial runout of assembled bearing outer ring flange back face
Sea1
Deep groove ball bearings and angular contact ball bearingsTapered roller bearingsDeep groove ball bearings and angular contact ball bearingsTapered roller bearings
classes 0, 6, 5, 4, 2 classes 0, 6 class 5 class 4 class 2 class 5 class 4 class 2 class 5 class 4 class 2 class 5 class 4 class 2 class 4 class 2
overup toupperlowermax.max.max.max.max.
-2.5 Shall conform to the tolerance ΔBs on d of the same class and the bearing Shall conform to the tolerance VBs on d of the same class and the bearing 5 2.5 1.5 8 4 1.5 8 4 1.5 11 7 3 7 4
2.56 5 2.5 1.5 8 4 1.5 8 4 1.5 11 7 3 7 4
618 5 2.5 1.5 8 4 1.5 8 4 1.5 11 7 3 7 4
1830 5 2.5 1.5 8 4 1.5 8 4 1.5 11 7 4 7 4
3050 5 2.5 1.5 8 4 1.5 8 4 2 11 7 4 7 4
5080 6 3 1.5 8 4 1.5 8 4 2.5 14 7 6 7 6

[Note]1) These shall be applied to groove ball bearings, i.e. deep groove ball bearing and angular contact ball bearing etc.

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a_77_001.png

Table 7-13 Permissible values for chamfer dimensions = JIS B 1514-3 =

(1) Radial bearing (tapered roller bearings excluded)

Unit : mm
rmin
or
r1min
Nominal bore diameter
d
mm
rmax
or
r1max
overup toRadial directionAxial direction
0.05 - - 0.1 0.2
0.08 - - 0.16 0.3
0.1 - - 0.2 0.4
0.15 - - 0.3 0.6
0.2 - - 0.5 0.8
0.3 - 40 0.6 1
40 - 0.8 1
0.6 - 40 1 2
40 - 1.3 2
1 - 50 1.5 3
50 - 1.9 3
1.1 - 120 2 3.5
120 - 2.5 4
1.5 - 120 2.3 4
120 - 3 5
2 - 80 3 4.5
80 220 3.5 5
220 - 3.8 6
2.1 - 280 4 6.5
280 - 4.5 7
2.5 - 100 3.8 6
100 280 4.5 6
280 - 5 7
3 - 280 5 8
280 - 5.5 8
4 - - 6.5 9
5 - - 8 10
6 - - 10 13
7.5 - - 12.5 17
9.5 - - 15 19
12 - - 18 24
15 - - 21 30
19 - - 25 38

[Remarks]
1. Value of rmax or r1 max in the axial direction of bearings with nominal width lower than 2 mm shall be the same as the value in radial direction.
2. There shall be no specification for the accuracy of the shape of the chamfer surface, but its outline in the axial plane shall not be situated outside of the imaginary circle arc with a radius of rmin or r1 min which contacts the inner ring side face and bore, or the outer ring side face and outside surface.

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(2) Radial bearings with locating snap ring (snap ring groove side) and cylindrical roller bearings (separete thrust collar and loose rib side)

Unit : mm
r1 minNominal bore dia. or nominal outside dia.
d or D
r1 max
overup toRadial directionAxial direction
0.2 - - 0.5 0.5
0.3 - 40 0.6 0.8
40 - 0.8 0.8
0.5 - 40 1 1.5
40 - 1.3 1.5
0.6 - 40 1 1.5
40 - 1.3 1.5
1 - 50 1.5 2.2
50 - 1.9 2.2
1.1 - 120 2 2.7
120 - 2.5 2.7
1.5 - 120 2.3 3.5
120 - 3 3.5
2 - 80 3 4
80 220 3.5 4
220 - 3.8 4
2.1 - 280 4 4.5
280 - 4.5 4.5
2.5 - 100 3.8 5
100 280 4.5 5
280 - 5 5
3 - 280 5 5.5
280 - 5.5 5.5
4 - - 6.5 6.5
5 - - 8 8
6 - - 10 10

[Remark]
There shall be no specification for the accuracy of the shape of the chamfer surface, but its outline in the axial plane shall not be situated outside of the imaginary circle arc with a radius of r1 min which contacts the inner ring side face and bore, or the outer ring side face and outside surface.

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(3) Cylindrical roller bearings (non-rib side) and angular contact ball bearings (front face side)

Unit : mm
r1 minNominal bore dia. or nominal outside dia.
d or D
r1 max
overup toRadial directionAxial direction
0.1 - - 0.2 0.4
0.15 - - 0.3 0.6
0.2 - - 0.5 0.8
0.3 - 40 0.6 1
40 - 0.8 1
0.6 - 40 1 2
40 - 1.3 2
1 - 50 1.5 3
50 - 1.9 3
1.1 - 120 2 3.5
120 - 2.5 4
1.5 - 120 2.3 4
120 - 3 5
2 - 80 3 4.5
80 220 3.5 5
220 - 3.8 6

[Remark]
There shall be no specification for the accuracy of the shape of the chamfer surface, but its outline in the axial plane shall not be situated outside of the imaginary circle arc with a radius of r1 min which contacts the inner ring side face and bore, or the outer ring side face and outside surface.

PDF (Click Here)

(4) Metric series tapered roller bearing

Unit : mm
rmin
or
r1 min
Nominal bore dia. or nominal outside dia.1)
d or D, mm
rmax
or
r1 max
overup toRadial directionAxial direction
0.3 - 40 0.7 1.4
40 - 0.9 1.6
0.6 - 40 1.1 1.7
40 - 1.3 2
1 - 50 1.6 2.5
50 - 1.9 3
1.5 - 120 2.3 3
120 250 2.8 3.5
250 - 3.5 4
2 - 120 2.8 4
120 250 3.5 4.5
250 - 4 5
2.5 - 120 3.5 5
120 250 4 5.5
250 - 4.5 6
3 - 120 4 5.5
120 250 4.5 6.5
250 400 5 7
400 - 5.5 7.5
4 - 120 5 7
120 250 5.5 7.5
250 400 6 8
400 - 6.5 8.5
5 - 180 6.5 8
180 - 7.5 9
6 - 180 7.5 10
180 - 9 11
7.5 - - 12.5 17
9.5 - - 15 19

[Note]1) Inner ring shall be included in division d, and outer ring, in division D.

[Remarks]
1. There shall be no specification for the accuracy of the shape of the chamfer surface, but its outline in the axial plane shall not be situated outside of the imaginary circle arc with a radius of rmin or r1 min which contacts the inner ring back face and bore, or the outer ring back face and outside surface.
2. Values in Italics are provided in JTEKT standards.

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(5) Thrust bearing

Unit : mm
rmin or r1 minrmax or r1 max
Radial and axial direction
0.05 0.1
0.08 0.16
0.1 0.2
0.15 0.3
0.2 0.5
0.3 0.8
0.6 1.5
1 2.2
1.1 2.7
1.5 3.5
2 4
2.1 4.5
3 5.5
4 6.5
5 8
6 10
7.5 12.5
9.5 15
12 18
15 21
19 25

[Remark]
There shall be no specification for the accuracy of the shape of the chamfer surface, but its outline in the axial plane shall not be situated outside of the imaginary circle arc with a radius of rmin or r1 min which contacts with the shaft or central race back face and bore, or the housing race back face and outside surface.

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