Basic size of mm

d	30
D	72
B	17

The basic rated load is kN

trends C	19
static state Co	6

Fatigue load limit Pu	0.31

Rated rotation speed is r/min

Refer to the speed	20000
limit speed	13000

Mass bearing + tightening sleeve	0.44

model

bearing	1207EKTN9
tapered adapter-sleeve	H207

Dimensions are mm

d1	30
d3	52
D1 ～	62.3
B1	29
B2	9
r1,2 min	1.1

Shoulder gear and chamfer size mm

Da max	47
db min	38
Da max	65
Ba min	-
ra max	1

Calculation coefficient

e	0.23
Y1	2.7
Y2	4.2
Y0	2.8