size,mm

d	55.000
D	120.000
T	31.500

specified load,N

Dynamic load (1) C 1	134000
Coefficient (5) e	0.83
Coefficient (5) Y	0.73
Dynamic load (1) C 90	34800
Dynamic load (1) C a90	49200
Coefficient (5) K	0.71
Static load C 0	157000

bearing designation

inner ring	31311
housing washer	31311

bearing

B	29.000
C	21.000
a (3)	6.9

axle

Maximum shoulder, chamfer radius R (4)	2.5
Shaft shoulder diameter D a	68.0
Diameter of the shoulder d b	82.0

bearing block

Maximum shoulder, radius of chamfer r (4)	2.0
Shoulder diameter D a	115.0
Shoulder diameter D b	103.0

retainer

A a	4.80
A b	4.30

coefficient

G 1	45.5
G 2	15.9
G g	0.0739

weight kg

weight kg	1.57