6311NR

Deep groove ball bearings - Single-row

Specifications
(Boundary dimensions ...etc)

d
55 mm
D
120 mm
B
29 mm
r(min.)
2 mm
r1(min.)
0.5 mm
Basic load ratings : Cr
89.5 kN
Basic load ratings : C0r
45.0 kN
Fatigue load limit : Cu
3.45 kN
factor : f0
13.2
Limiting speeds(Grease lub.)
5600 min-1
Limiting speeds(Oil lub.)
6700 min-1
Dimensions of snap ring groove : D1(max.)
mm
Dimensions of snap ring groove : a(max.)
mm
Dimensions of snap ring groove : b(±0.05)
mm
Dimensions of snap ring groove : r0(max.)
mm
Dimensions of locating snap ring : D2(min.)
129.7 mm
Dimensions of locating snap ring : f(±0.05)
2.77 mm

Mounting dimensions

da(min.)
64 mm
Da(max.)
111 mm
Dx(min.)
131.5 mm
Cy(max.)
6.58 mm
ra(max.)
2 mm
rb(max.)
0.5 mm

Refer.

(Refer.)Mass
1.37 kg

Technical calculation for this product.

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