Basic size of mm

d	55
D	120
B	49.2

The basic rated load is kN

trends C	112
static state Co	81.5

Fatigue load limit Pu	3.45

Limit rotational speed is r/min

With dust cover bearing	5300
sealed bearing	3800

Mass kg	2.65

Model number ²⁾

With dust cover bearing	*3311A-2Z
Bearings with sealing rings	*3311A-2RS1

Dimensions are mm

d	55
d1 ～	68.4
D1 ～	109
r1,2 min	2
a	72

Shoulder gear and chamfer size mm

da min	66
Da max	68
Da max	109
ra max	2