Basic size of mm

d	66.675
D	112.712
T	30.162

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	39590/39520/Q
series	39500

Dimensions are mm

d	66.675
d1 ～	88.3
B	30.162
C	23.812
r1,2 min	3.5
r3,4 min	3.3
a	23

Shoulder gear and chamfer size mm

Da max	76
db min	78.5
Da min	100
Da max	101
Db min	107
Ca min	5
Cb min	6
ra max	3
rb max	3

Calculation coefficient

e	0.33
Y	1.8
Yo	1