Basic size of mm

d	9
D	17
B	5

The basic rated load is kN

trends C	1.43
static state Co	0.64

Fatigue load limit Pu	0.027

Rated rotation speed is r/min

Refer to the speed	85000
Limit speed 1)	43000

Mass kg	0.0043

model

Both sides are sealed	628/9-2Z
One side is sealed	628/9-Z

Dimensions are mm

d	9
d1 ～	11.1
d2 ～	-
D2 ～	15.5
r1,2 min	0.2

Shoulder gear and chamfer size mm

da min	10.4
Da max	-
Da max	15.6
ra max	0.2

Calculation coefficient

kr	0.015
fo	11