Basic size of mm

d	66.675
D	119.985
T	32.75

The basic rated load is kN

trends C	142
static state Co	204

Fatigue load limit Pu	24

Rated rotation speed is r/min

Refer to the speed	4300
limit speed	6300

quality	1.2
model	39590/39528/Q
series	39500

Dimensions are mm

d	66.675
d1 ～	88.3
B	30.162
C	26.949
r1,2 min	3.5
r3,4 min	0.8
a	25

Shoulder gear and chamfer size mm

Da max	76
db min	78.5
Da min	100
Da max	112
Db min	107
Ca min	5
Cb min	6
ra max	3
rb max	0.8

Calculation coefficient

e	0.33
Y	1.8
Yo	1