Basic size of mm

d	20
D	52
B	22.2

The basic rated load is kN

trends C	23.6
static state Co	14.6

Fatigue load limit Pu	0.62

Limit rotational speed is r/min

With dust cover bearing	13000
sealed bearing	9000

Mass kg	0.22

Model number ²⁾

With dust cover bearing	*3304A-2Z
Bearings with sealing rings	*3304A-2RS1

Dimensions are mm

d	20
d1 ～	29.9
D1 ～	44
r1,2 min	1.1
a	30

Shoulder gear and chamfer size mm

da min	27
Da max	29.5
Da max	45
ra max	1