Basic size of mm

d	101.6
D	168.275
T	41.275

The basic rated load is kN

trends C	233
static state Co	365

Fatigue load limit Pu	39

Rated rotation speed is r/min

Refer to the speed	2800
limit speed	4000

quality	3.45
model	687/672
series	675

Dimensions are mm

d	101.6
d1 ～	133
B	41.275
C	30.162
r1,2 min	3.5
r3,4 min	3.3
a	38

Shoulder gear and chamfer size mm

Da max	114
db min	113
Da min	143
Da max	157
Db min	157
Ca min	6
Cb min	11
ra max	3
rb max	3

Calculation coefficient

e	0.48
Y	1.25
Yo	0.7