Basic size of mm

d	30
D	80
B	31

The basic rated load is kN

trends C	39.7
static state Co	11.2

Fatigue load limit Pu	0.59

Rated rotation speed is r/min

Refer to the speed	18000
limit speed	12000

Mass bearing + tightening sleeve	0.84

model

bearing	2307EKTN9
tapered adapter-sleeve	H2307

Dimensions are mm

d1	30
d3	52
D1 ～	68.4
B1	43
B2	9
r1,2 min	1.5

Shoulder gear and chamfer size mm

Da max	46
db min	40
Da max	71
Ba min	5
ra max	1.5

Calculation coefficient

e	0.46
Y1	1.35
Y2	2.1
Y0	1.4