Basic size of mm

d	9
D	26
B	8

The basic rated load is kN

trends C	3.9
static state Co	1.9

Fatigue load limit Pu	0.083

Rated rotation speed is r/min

Refer to the speed	60000
limit speed	30000

Mass kg	0.022
model	W629-2Z

Dimensions are mm

d	9
d1 ～	13.9
D1 ～	22.4
r1,2 min	0.3

Shoulder gear and chamfer size mm

da min	11.4
Da max	23.6
ra max	0.3

Calculation coefficient

kr	0.025
fo	12