Basic size of mm

d	114.3
D	180.975
T	34.925

The basic rated load is kN

trends C	183
static state Co	280

Fatigue load limit Pu	30

Rated rotation speed is r/min

Refer to the speed	2600
limit speed	3800

quality	2.95
model	68450/68712
series	68000

Dimensions are mm

d	114.3
d1 ～	144
B	31.75
C	25.4
r1,2 min	3.5
r3,4 min	3.3
a	40

Shoulder gear and chamfer size mm

Da max	129
db min	127
Da min	158
Da max	170
Db min	170
Ca min	4
Cb min	9.5
ra max	3
rb max	3

Calculation coefficient

e	0.5
Y	1.2
Yo	0.7