Basic size of mm

d	53.975
D	123.825
T	36.512

The basic rated load is kN

trends C	147
static state Co	180

Fatigue load limit Pu	21.6

Rated rotation speed is r/min

Refer to the speed	3800
limit speed	5600

quality	2.05
model	72212/2/72487/2/Q
series	72000

Dimensions are mm

d	53.975
d1 ～	88.8
B	32.791
C	25.4
r1,2 min	3.5
r3,4 min	3.3
a	36

Shoulder gear and chamfer size mm

Da max	68
db min	65.5
Da min	93
Da max	113
Db min	114
Ca min	5
Cb min	11
ra max	3
rb max	3

Calculation coefficient

e	0.75
Y	0.8
Yo	0.45