Basic size of mm

d	7
D	14
B	5

The basic rated load is kN

trends C	0.806
static state Co	0.39

Fatigue load limit Pu	0.017

Rated rotation speed is r/min

Refer to the speed	100000
limit speed	50000

Mass kg	0.003
model	W628/7-2Z

Dimensions are mm

d	7
d1 ～	8.5
D1 ～	12.7
r1,2 min	0.15

Shoulder gear and chamfer size mm

da min	7.8
Da max	13.2
ra max	0.1

Calculation coefficient

kr	0.015
fo	11