Basic size of mm

d1	50
D	120
B	29

The basic rated load is kN

trends C	156
static state Co	166

Fatigue load limit Pu	18.6

Rated rotation speed is r/min

Refer to the speed	5600
limit speed	7500

Mass bearing + tightening sleeve	1.95

model

bearing	*21311EK
tapered adapter-sleeve	H311

Dimensions are mm

d1	50
d2 ～	71.6
d3	75
D1 ～	96.2
B1	45
B2	12.5
b	5.5
k	3
r1,2 min	2

Shoulder gear and chamfer size mm

da max	71
db min	60
Da max	109
Ba min	6
ra max	2

Calculation coefficient

e	0.24
Y1	2.8
Y2	4.2
Yo	2.8