Basic size of mm

d	5
D	8
B	2.5

The basic rated load is kN

trends C	0.14
static state Co	0.057

Fatigue load limit Pu	0.0025

Rated rotation speed is r/min

Refer to the speed	140000
limit speed	70000

Mass kg	0.00034
model	W627/5-2Z

Dimensions are mm

d	5
d1 ～	5.8
D1 ～	7.4
r1,2 min	0.08

Shoulder gear and chamfer size mm

da min	5.5
Da max	7.5
ra max	0.08

Calculation coefficient

kr	0.015
fo	10