Basic size of mm

d	40
D	90
B	23

The basic rated load is kN

trends C	93
static state Co	78

Fatigue load limit Pu	10.2

Rated rotation speed is r/min

Refer to the speed	8000
limit speed	9500

Specification standard holder	0.68

model

Standard holder	*NUP308ECP
Other holder 1)	M,ML

Dimensions are mm

d	40
d1 ～	57.5
D1 ～	75.6
F,E	52
r1,2 min	1.5
r3,4 min	1.5
s1)	-

Shoulder gear and chamfer size mm

da min	49
Da max	-
db,Da min	60
Da max	81
ra max	1.5
rb max	1.5

Calculation coefficient

kr	0.15

Corner circle

model	-
quality	-
Size B1	-
Size B2	-