Basic size of mm

d	55
D	100
B	21

The basic rated load is kN

trends C	27.6
static state Co	10.6

Fatigue load limit Pu	0.54

Rated rotation speed is r/min

Refer to the speed	14000
limit speed	9000

Mass kg	0.71

model

Column hole	1211ETN9
conical bore	1211EKTN9

Dimensions are mm

d	55
d2 ～	70.1
D1 ～	88.4
r1,2 min	1.5

Shoulder gear and chamfer size mm

da min	64
Da max	91
ra max	1.5

Calculation coefficient

e	0.19
Y1	3.3
Y2	5.1
Y0	3.6