Basic size of mm

d	20
D	37
B	9

The basic rated load is kN

trends C	6.37
static state Co	3.65

Fatigue load limit Pu	0.156

Rated rotation speed is r/min

Refer to the speed	43000
limit speed	26000

Mass kg	0.038
model	61904

Dimensions are mm

d	20
d1 ～	25.6
D1 ～	31.4
D2 ～	32.8
r1,2 min	0.3

Shoulder gear and chamfer size mm

da min	22
Da max	35
ra max	0.3

Calculation coefficient

kr	0.02
fo	15