Basic size of mm

d	20
D	47
B	14

The basic rated load is kN

trends C	12.7
static state Co	3.4

Fatigue load limit Pu	0.18

Rated rotation speed is r/min

Refer to the speed	32000
limit speed	20000

Mass kg	0.12

model

Column hole	1204ETN9
conical bore	1204EKTN9

Dimensions are mm

d	20
d2 ～	28.9
D1 ～	41
r1,2 min	1

Shoulder gear and chamfer size mm

da min	25.6
Da max	41.4
ra max	1

Calculation coefficient

e	0.3
Y1	2.1
Y2	3.3
Y0	2.2