Basic size of mm

d	187.325
D	282.575
T	50.8

The basic rated load is kN

trends C	402
static state Co	695

Fatigue load limit Pu	67

Rated rotation speed is r/min

Refer to the speed	1600
limit speed	2200

quality	9.8
model	87737/87111
series	87000

Dimensions are mm

d	187.325
d1 ～	233
B	47.625
C	36.512
r1,2 min	3.5
r3,4 min	3.3
a	55

Shoulder gear and chamfer size mm

Da max	213
db min	201
Da min	253
Da max	271
Db min	267
Ca min	6
Cb min	14
ra max	3
rb max	3

Calculation coefficient

e	0.43
Y	1.4
Yo	0.8