Basic size of mm

d	45
D	85
B	23

The basic rated load is kN

trends C	93
static state Co	93

Fatigue load limit Pu	10.8

Rated rotation speed is r/min

Refer to the speed	8000
limit speed	11000

quality	0.55

model

Bearing cylindrical hole	*C2209TN9
conical bore	*C2209KTN9

Dimensions are mm

d	45
d2 ～	55.6
D1 ～	73.1
r1,2 min	1.1
s11) ～	7.1
s21) ～	-

Shoulder gear and chamfer size mm

da min	52
da max	55
Da min	71
Da max	78
Ca2) max	0.3
ra max	1

Calculation coefficient

k1	0.095
k2	0.128