size,mm

d	59.987
D	112.712
T	30.162

specified load,N

Dynamic load (1) C 1	129000
Coefficient (5) e	0.40
Coefficient (5) Y	1.49
Dynamic load (2) C 90	33300
Dynamic load (2) C a90	22900
Coefficient (5) K	1.45
Static load C 0	191000

bearing designation

inner ring	3977X
housing washer	3920

Bearings size, mm

B	28.000
C	23.812
a (3)	-4.6

Axial dimension, mm

Maximum shoulder chamfer radius R (4)	2.3
Shaft shoulder diameter D a	68.0
Diameter of the shoulder d b	72.0

Bearings seat size, mm

Maximum shoulder fillet radius r (4)	3.3
Shoulder diameter D a	106.0
Shoulder diameter D b	99.0

retainer

A a	2.20
A b	3.10

coefficient

G 1	75.2
G 2	21.3
G g	0.1092

weight kg

weight kg	1.28