Basic size of mm

d	57.15
D	96.838
T	20.886

The basic rated load is kN

trends C	80.9
static state Co	102

Fatigue load limit Pu	11.6

Rated rotation speed is r/min

Refer to the speed	5000
limit speed	7500

quality	0.59
model	387A/382A/Q
series	385

Dimensions are mm

d	57.15
d1 ～	74.1
B	21.946
C	15.875
r1,2 min	3.5
r3,4 min	0.8
a	17

Shoulder gear and chamfer size mm

Da max	65
db min	68.5
Da min	87
Da max	91.5
Db min	91
Ca min	5
Cb min	5
ra max	3
rb max	0.8

Calculation coefficient

e	0.35
Y	1.7
Yo	0.9