Basic size of mm

d	45
D	85
B	23

The basic rated load is kN

trends C	32.5
static state Co	10.6

Fatigue load limit Pu	0.54

Rated rotation speed is r/min

Refer to the speed	15000
limit speed	10000

Mass kg	0.55

model

Column hole	2209ETN9
conical bore	2209EKTN9

Dimensions are mm

d	45
d2 ～	55.3
D1 ～	74.6
r1,2 min	1.1

Shoulder gear and chamfer size mm

da min	52
Da max	78
ra max	1

Calculation coefficient

e	0.26
Y1	2.4
Y2	3.7
Y0	2.5