model 320/28-X The interchangeable models are as follows
ISO355 T4CC028 quality/ m
≈kg 0.156

size mm

d	28
D	52
B	16
C	12
T	16
r1, r2 min	1
r3, r4 min	1
a ≈	13
d1 ≈	41

installation size mm

da max	33
db min	34
Da min	45
Da max	46
Db min	49
Ca min	3
Cb min	4
ra max	520
rb max	318

Basic rated load N

live load Cr	32
dead load Cor	4

Calculation coefficient

e	2750000
Y	4400000
Y0	0.27

Fatigue limit load Cur/ N	2.47
limit speed nG min–1	3.67
Reference speed nB min–1	2.41