model 31310-A The interchangeable models are as follows
ISO355 T7FB050 X-life - quality/ m
≈kg 1.23

size mm

d	50
D	110
B	27
C	19
T	29.25
r1, r2 min	2.5
r3, r4 min	2
a ≈	35
d1 ≈	81.4

installation size mm

da max	62
db min	60
Da min	87
Da max	100
Db min	104
Ca min	4
Cb min	309.8
ra max	250
rb max	11

Basic rated load N

live load Cr	2.1
dead load Cor	640000

Calculation coefficient

e	1370000
Y	0.17
Y0	4.05

Fatigue limit load Cur/ N	6.04
limit speed nG min–1	3.96
Reference speed nB min–1	93000