4TR680B

Rolling mill roll neck bearings - Four-row tapered roller bearings

Specifications
(Boundary dimensions ...etc)

d
680.000 mm
D
970.000 mm
T
740.000 mm
W
740.000 mm
r(min.)
6.4 mm
r1(min.)
3.2 mm
Basic load ratings : Cr
20200 kN
Basic load ratings : C0r
52800 kN
Fatigue load limit : Cu
3930 kN
Axial load factors : Y2
2.03 mm
Axial load factors : Y3
3.02
Axial load factors : Y0
1.98
Constant e
0.33

Mounting dimensions

da(min.)
743 mm
Da(max.)
946 mm
Da(max.)
896 mm
S(min.)
9 mm
ra(max.)
6.4 mm
rb(max.)
3.2 mm
Axial load factors : Y2
2.03 mm
Axial load factors : Y3
3.02
Axial load factors : Y0
1.98
Constant e
0.33

Refer.

(Refer.)Mass
1790 kg

Technical calculation for this product.

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