Basic size of mm

d	45
D	100
B	39.7

The basic rated load is kN

trends C	75
static state Co	53

Fatigue load limit Pu	2.24

Limit rotational speed is r/min

With dust cover bearing	6700
sealed bearing	4800

Mass kg	1.25

Model number ²⁾

With dust cover bearing	*3309A-2Z
Bearings with sealing rings	*3309A-2RS1

Dimensions are mm

d	45
d1 ～	55.6
D1 ～	90
r1,2 min	1.5
a	58

Shoulder gear and chamfer size mm

da min	54
Da max	55.5
Da max	91
ra max	1.5