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)	19000

Mass kg	0.14

model

Bearing belt stop slot	*6304-ZNR
Stop slot and stop ring	*6304-2ZNR
snap ring	SP52

Dimensions are mm

d	20
d1 ～	30.4
D1 ～	44.8
D3	49.73
D4	57.9
b	1.35
f	1.12
C	2.46
r1,2 min	1.1
r0 max	0.4

Shoulder gear and chamfer size mm

da min	27
Da max	45
db min	59
Ba min	1.5
Ca max	3.58
ra max	1

Calculation coefficient

kr	0.03
fo	12