model 30310-A The interchangeable models are as follows
ISO355 T2FB050 X-life - quality/ m
≈kg 1.27

size mm

d	50
D	110
B	27
C	23
T	29.25
r1, r2 min	2.5
r3, r4 min	2
a ≈	23
d1 ≈	77.6

installation size mm

da max	65
db min	60
Da min	95
Da max	100
Db min	102
Ca min	4
Cb min	347.6
ra max	251
rb max	11

Basic rated load N

live load Cr	2.5
dead load Cor	1160000

Calculation coefficient

e	2200000
Y	0.25
Y0	2.74

Fatigue limit load Cur/ N	4.08
limit speed nG min–1	2.68
Reference speed nB min–1	130000