Basic size of mm

d	30
D	72
B	23

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	-
limit speed	6300

Mass bearing + tightening sleeve	0.55

model

bearing	2207E-2RS1KTN9
tapered adapter-sleeve	H307C

Dimensions are mm

d1	30
d3	52
D1 ～	62.7
B1	35
B2	9.5
r1,2 min	1.1

Shoulder gear and chamfer size mm

Da max	42
db min	39
Da max	65
Ba min	5
ra max	1

Calculation coefficient

e	0.23
Y1	2.7
Y2	4.2
Y0	2.8