Basic size of mm

d	105
D	225
B	49

The basic rated load is kN

trends C	182
static state Co	153

Fatigue load limit Pu	5.1

Rated rotation speed is r/min

Refer to the speed	6300
Limit speed 1)	3200

Mass kg	8.25

model

Both sides are sealed	6321-2Z
One side is sealed	6321-Z

Dimensions are mm

d	105
d1 ～	141
d2 ～	-
D2 ～	193
r1,2 min	3

Shoulder gear and chamfer size mm

da min	119
Da max	-
Da max	211
ra max	2.5

Calculation coefficient

kr	0.03
fo	13