Basic size of mm

d	55
D	120
B	29

The basic rated load is kN

trends C	85.2
static state Co	60

Fatigue load limit Pu	2.55

Rated rotation speed is r/min

Refer to the speed	6700
limit speed	6700

Mass kg	1.48

Model number ¹⁾

General distribution bearings	7311BECBY
Basic design bearings	7311BEY

Dimensions are mm

d	55
d1 ～	80.3
d2 ～	66.7
D1 ～	96.6
r1,2 min	2
r3,4 min	1
a	51

Shoulder gear and chamfer size mm

da min	66
Da max	109
db max	114
ra max	2
rb max	1