Basic size of mm

d	45
D	85
B	23

The basic rated load is kN

trends C	85
static state Co	81.5

Fatigue load limit Pu	10.6

Rated rotation speed is r/min

Refer to the speed	9000
limit speed	9500

Specification standard holder	0.52

model

Standard holder	*NU2209ECP
Other holder 1)	J

Dimensions are mm

d	45
d1 ～	-
D1 ～	73
F,E	54.5
r1,2 min	1.1
r3,4 min	1.1
s1)	1.7

Shoulder gear and chamfer size mm

da min	52
Da max	53
db,Da min	56
Da max	78
ra max	1
rb max	1

Calculation coefficient

kr	0.2

Corner circle

model	-
quality	-
Size B1	-
Size B2	-