Basic size of mm

d	9
D	20
B	6

The basic rated load is kN

trends C	1.74
static state Co	0.83

Fatigue load limit Pu	0.036

Rated rotation speed is r/min

Refer to the speed	80000
limit speed	38000

Mass kg	0.0085
model	W619/9-2Z

Dimensions are mm

d	9
d1 ～	11.6
D1 ～	17.5
r1,2 min	0.3

Shoulder gear and chamfer size mm

da min	11
Da max	18
ra max	0.3

Calculation coefficient

kr	0.02
fo	11