Basic size of mm

d	140
D	300
B	62

The basic rated load is kN

trends C	780
static state Co	830

Fatigue load limit Pu	88

Rated rotation speed is r/min

Refer to the speed	2400
limit speed	2800

Specification standard holder	22.7

model

Standard holder	*NU328ECM
Other holder 1)	J,ML

Dimensions are mm

d	140
d1 ～	195
D1 ～	252
F,E	180
r1,2 min	4
r3,4 min	4
s1)	3.7

Shoulder gear and chamfer size mm

da min	157
Da max	176
db,Da min	183
Da max	283
ra max	3
rb max	3

Calculation coefficient

kr	0.15

Corner circle

model	HJ328EC
quality	2
Size B1	15
Size B2	25