Basic size of mm

d	40
D	90
B	23

The basic rated load is kN

trends C	71.5
static state Co	58.5

Fatigue load limit Pu	2.45

Rated rotation speed is r/min

Refer to the speed	8500
limit speed	14000

Mass kg	0.78

model

Bearing belt positioning groove	QJ308N2MA
No positioning slot	QJ308MA

Dimensions are mm

d	40
d1 ～	57.5
D1 ～	72.5
r1,2 min	1.5
a	46

Positioning of the slot size mm

b	5.5
h	4
ro	0.5

Shoulder gear and chamfer size mm

da min	49
Da max	81
ra max	1.5