Basic size of mm

d	12
D	24
B	6

The basic rated load is kN

trends C	1.9
static state Co	0.95

Fatigue load limit Pu	0.043

Rated rotation speed is r/min

Refer to the speed	67000
limit speed	32000

Mass kg	0.012
model	W61901-2Z

Dimensions are mm

d	12
d1 ～	15.4
D1 ～	21.4
r1,2 min	0.3

Shoulder gear and chamfer size mm

da min	14
Da max	22
ra max	0.3

Calculation coefficient

kr	0.02
fo	9.7