Basic size of mm

d	34.925
D	73.025
T	23.812

The basic rated load is kN

trends C	72.1
static state Co	88

Fatigue load limit Pu	9.8

Rated rotation speed is r/min

Refer to the speed	7000
limit speed	10000

quality	0.47
model	25877/2/25821/2/Q
series	25800

Dimensions are mm

d	34.925
d1 ～	52.5
B	24.608
C	19.05
r1,2 min	1.5
r3,4 min	0.8
a	15

Shoulder gear and chamfer size mm

Da max	44
db min	42
Da min	62
Da max	66.5
Db min	67
Ca min	5
Cb min	4.5
ra max	1.5
rb max	0.8

Calculation coefficient

e	0.3
Y	2
Yo	1.1