Basic size of mm

d	7
D	17
B	5

The basic rated load is kN

trends C	1.24
static state Co	0.54

Fatigue load limit Pu	0.024

Rated rotation speed is r/min

Refer to the speed	90000
limit speed	45000

Mass kg	0.005
model	W619/7-2Z

Dimensions are mm

d	7
d1 ～	9.3
D1 ～	14.3
r1,2 min	0.3

Shoulder gear and chamfer size mm

da min	9
Da max	15
ra max	0.3

Calculation coefficient

kr	0.02
fo	8.9