Basic size of mm

d	42.875
D	82.931
T	23.812

The basic rated load is kN

trends C	80.9
static state Co	106

Fatigue load limit Pu	12

Rated rotation speed is r/min

Refer to the speed	6000
limit speed	9000

quality	0.57
model	25577/2/25520/2/Q
series	25500

Dimensions are mm

d	42.875
d1 ～	62.1
B	25.4
C	19.05
r1,2 min	3.5
r3,4 min	0.8
a	17

Shoulder gear and chamfer size mm

Da max	53
db min	54
Da min	71
Da max	77
Db min	76
Ca min	5
Cb min	4.5
ra max	3
rb max	0.8

Calculation coefficient

e	0.33
Y	1.8
Yo	1