Basic size of mm

d	41.275
D	73.025
T	16.667

The basic rated load is kN

trends C	54
static state Co	56

Fatigue load limit Pu	6.2

Rated rotation speed is r/min

Refer to the speed	7500
limit speed	10000

quality	0.27
model	*18590/18520/Q
series	18500

Dimensions are mm

d	41.275
d1 ～	56.1
B	17.462
C	12.7
r1,2 min	3.5
r3,4 min	1.5
a	14

Shoulder gear and chamfer size mm

Da max	49
db min	52.5
Da min	65
Da max	65
Db min	68
Ca min	3
Cb min	3.5
ra max	3
rb max	1.5

Calculation coefficient

e	0.35
Y	1.7
Yo	0.9