Basic size of mm

d	20
D	47
B	14

The basic rated load is kN

trends C	25.1
static state Co	25.2

Fatigue load limit Pu	2.75

Rated rotation speed is r/min

Refer to the speed	16000
limit speed	19000

Specification standard holder	0.11

model

Standard holder	NU204ECP
Other holder 1)	ML

Dimensions are mm

d	20
d1 ～	-
D1 ～	38.8
F,E	26.5
r1,2 min	1
r3,4 min	0.6
s1)	1

Shoulder gear and chamfer size mm

da min	24.2
Da max	25
db,Da min	28
Da max	41.4
ra max	1
rb max	0.6

Calculation coefficient

kr	0.15

Corner circle

model	-
quality	-
Size B1	-
Size B2	-