Basic size of mm

d	50.8
D	93.264
T	30.162

The basic rated load is kN

trends C	110
static state Co	146

Fatigue load limit Pu	17

Rated rotation speed is r/min

Refer to the speed	5300
limit speed	7500

quality	0.85
model	3780/3720/Q
series	3700

Dimensions are mm

d	50.8
d1 ～	71.2
B	30.302
C	23.812
r1,2 min	3.5
r3,4 min	3.3
a	22

Shoulder gear and chamfer size mm

Da max	60
db min	62
Da min	80
Da max	84.5
Db min	87
Ca min	4
Cb min	6
ra max	3
rb max	3

Calculation coefficient

e	0.33
Y	1.8
Yo	1