Basic size of mm

d	55
D	72
B	9

The basic rated load is kN

trends C	9.04
static state Co	8.8

Fatigue load limit Pu	0.38

Rated rotation speed is r/min

Refer to the speed	19000
limit speed	12000

Mass kg	0.083
model	61811

Dimensions are mm

d	55
d1 ～	60.6
D1 ～	66.4
D2 ～	-
r1,2 min	0.3

Shoulder gear and chamfer size mm

da min	57
Da max	70
ra max	0.3

Calculation coefficient

kr	0.015
fo	17