Basic size of mm

d	40
D	80
B	23

The basic rated load is kN

trends C	90
static state Co	86.5

Fatigue load limit Pu	10.2

Rated rotation speed is r/min

Refer to the speed	8000
limit speed	11000

quality	0.5

model

Bearing cylindrical hole	*C2208TN9
conical bore	*C2208KTN9

Dimensions are mm

d	40
d2 ～	52.4
D1 ～	69.9
r1,2 min	1.1
s11) ～	7.1
s21) ～	-

Shoulder gear and chamfer size mm

da min	47
da max	52
Da min	68
Da max	73
Ca2) max	0.3
ra max	1

Calculation coefficient

k1	0.093
k2	0.128