Basic size of mm

d	40
D	90
B	23

The basic rated load is kN

trends C	49.4
static state Co	33.5

Fatigue load limit Pu	1.4

Rated rotation speed is r/min

Refer to the speed	9000
limit speed	9000

Mass kg	0.64

Model number ¹⁾

General distribution bearings	7308BECBY
Basic design bearings	7308BEY

Dimensions are mm

d	40
d1 ～	59.7
d2 ～	49.6
D1 ～	71.6
r1,2 min	1.5
r3,4 min	1
a	39

Shoulder gear and chamfer size mm

da min	49
Da max	81
db max	84.4
ra max	1.5
rb max	1