Basic size of mm

d	40
D	80
B	18

The basic rated load is kN

trends C	62
static state Co	53

Fatigue load limit Pu	6.7

Rated rotation speed is r/min

Refer to the speed	9500
limit speed	11000

Specification standard holder	0.42

model

Standard holder	*NU208ECP
Other holder 1)	J,M,ML

Dimensions are mm

d	40
d1 ～	54
D1 ～	67.9
F,E	49.5
r1,2 min	1.1
r3,4 min	1.1
s1)	1.4

Shoulder gear and chamfer size mm

da min	47
Da max	48
db,Da min	51
Da max	73
ra max	1
rb max	1

Calculation coefficient

kr	0.15

Corner circle

model	HJ208EC
quality	0.047
Size B1	5
Size B2	8.5