Basic size of mm

d	45
D	100
B	25

The basic rated load is kN

trends C	60.5
static state Co	41.5

Fatigue load limit Pu	1.73

Rated rotation speed is r/min

Refer to the speed	8000
limit speed	8000

Mass kg	0.86

Model number ¹⁾

General distribution bearings	7309BECBY
Basic design bearings	7309BEY

Dimensions are mm

d	45
d1 ～	66.5
d2 ～	55.3
D1 ～	79.8
r1,2 min	1.5
r3,4 min	1
a	43

Shoulder gear and chamfer size mm

da min	54
Da max	91
db max	94.4
ra max	1.5
rb max	1