Basic size of mm

d	20
D	72
B	19

The basic rated load is kN

trends C	30.7
static state Co	15

Fatigue load limit Pu	0.64

Rated rotation speed is r/min

Refer to the speed	24000
limit speed	15000

Mass kg	0.4
model	6404

Dimensions are mm

d	20
d1 ～	37.1
D1 ～	54.8
D2 ～	-
r1,2 min	1.1

Shoulder gear and chamfer size mm

da min	29
Da max	63
ra max	1

Calculation coefficient

kr	0.035
fo	11