Basic size of mm

d	50
D	90
B	20

The basic rated load is kN

trends C	73.5
static state Co	69.5

Fatigue load limit Pu	8.8

Rated rotation speed is r/min

Refer to the speed	8500
limit speed	9000

Specification standard holder	0.49

model

Standard holder	*NU210ECP
Other holder 1)	J,M,ML

Dimensions are mm

d	50
d1 ～	64
D1 ～	78
F,E	59.5
r1,2 min	1.1
r3,4 min	1.1
s1)	1.5

Shoulder gear and chamfer size mm

da min	57
Da max	57
db,Da min	62
Da max	83
ra max	1
rb max	1

Calculation coefficient

kr	0.15

Corner circle

model	HJ210EC
quality	0.058
Size B1	5
Size B2	9