size,mm

d	73.025
D	146.050
T	41.275

specified load,N

Dynamic load (1) C 1	229000
Coefficient (5) e	0.41
Coefficient (5) Y	1.47
Dynamic load (2) C 90	59300
Dynamic load (2) C a90	41500
Coefficient (5) K	1.43
Static load C 0	335000

bearing designation

inner ring	657
housing washer	653

Bearings size, mm

B	41.275
C	31.750
a (3)	-7.9

Axial dimension, mm

Maximum shoulder chamfer radius R (4)	3.5
Shaft shoulder diameter D a	85.0
Diameter of the shoulder d b	91.0

Bearings seat size, mm

Maximum shoulder fillet radius r (4)	3.3
Shoulder diameter D a	139.0
Shoulder diameter D b	131.0

retainer

A a	4.50
A b	2.00

coefficient

G 1	137
G 2	27.3
G g	0.0919

weight kg

weight kg	3.11