Basic size of mm

d	8
D	22
B	7

The basic rated load is kN

trends C	3.45
static state Co	1.37

Fatigue load limit Pu	0.057

Rated rotation speed is r/min

Refer to the speed	75000
Limit speed 1)	38000

Mass kg	0.012

model

Both sides are sealed	*608-2Z
One side is sealed	*608-Z

Dimensions are mm

d	8
d1 ～	12.1
d2 ～	-
D2 ～	19.2
r1,2 min	0.3

Shoulder gear and chamfer size mm

da min	10
Da max	-
Da max	20
ra max	0.3

Calculation coefficient

kr	0.025
fo	12