Basic size of mm

d	50
D	90
B	20

The basic rated load is kN

trends C	26.5
static state Co	9.15

Fatigue load limit Pu	0.48

Rated rotation speed is r/min

Refer to the speed	16000
limit speed	10000

Mass kg	0.53

model

Column hole	1210ETN9
conical bore	1210EKTN9

Dimensions are mm

d	50
d2 ～	61.7
D1 ～	79.5
r1,2 min	1.1

Shoulder gear and chamfer size mm

da min	57
Da max	83
ra max	1

Calculation coefficient

e	0.21
Y1	3
Y2	4.6
Y0	3.2