Basic size of mm

d	25
D	62
B	17

The basic rated load is kN

trends C	39
static state Co	28

Fatigue load limit Pu	1.18

Rated rotation speed is r/min

Refer to the speed	12000
limit speed	20000

Mass kg	0.29

model

Bearing belt positioning groove	QJ305N2MA
No positioning slot	QJ305MA

Dimensions are mm

d	25
d1 ～	38
D1 ～	49
r1,2 min	1.1
a	30

Positioning of the slot size mm

b	4.5
h	3.5
ro	0.5

Shoulder gear and chamfer size mm

da min	32
Da max	55
ra max	1