Basic size of mm

d	20
D	52
B	15

The basic rated load is kN

trends C	16.8
static state Co	7.8

Fatigue load limit Pu	0.335

Rated rotation speed is r/min

Refer to the speed	30000
Limit speed 1)	15000

Mass kg	0.14

model

Both sides are sealed	*6304-2Z
One side is sealed	*6304-Z

Dimensions are mm

d	20
d1 ～	30.4
d2 ～	-
D2 ～	44.8
r1,2 min	1.1

Shoulder gear and chamfer size mm

da min	27
Da max	-
Da max	45
ra max	1

Calculation coefficient

kr	0.03
fo	12