Basic size of mm

d1	90
D	215
B	47

The basic rated load is kN

trends C	425
static state Co	490

Fatigue load limit Pu	49

Rated rotation speed is r/min

Refer to the speed	3400
limit speed	4500

Mass bearing + tightening sleeve	10.5

model

bearing	*21320EK
tapered adapter-sleeve	H320

Dimensions are mm

d1	90
d2 ～	118
d3	130
D1 ～	159
B1	71
B2	20
b	8.3
k	4.5
r1,2 min	3

Shoulder gear and chamfer size mm

da max	118
db min	108
Da max	201
Ba min	7
ra max	2.5

Calculation coefficient

e	0.24
Y1	2.8
Y2	4.2
Yo	2.8