Basic size of mm

d	30
D	80
B	21

The basic rated load is kN

trends C	26.5
static state Co	8.5

Fatigue load limit Pu	0.43

Rated rotation speed is r/min

Refer to the speed	16000
limit speed	11000

Mass bearing + tightening sleeve	0.65

model

bearing	1307EKTN9
tapered adapter-sleeve	H307

Dimensions are mm

d1	30
d3	52
D1 ～	69.5
B1	35
B2	9
r1,2 min	1.5

Shoulder gear and chamfer size mm

Da max	51
db min	39
Da max	71
Ba min	7
ra max	1.5

Calculation coefficient

e	0.25
Y1	2.5
Y2	3.9
Y0	2.5