Basic size of mm

d	670
D	820
B	88

The basic rated load is kN

trends C	1940
static state Co	5300

Fatigue load limit Pu	415

Rated rotation speed is r/min

Refer to the speed	280
limit speed	340

quality	97.5
model	NCF28/670V

Dimensions are mm

d	670
d1 ～	724
D1 ～	772
E	783
r1,2 min	4
r3,4 min	4
s1)	8

Shoulder gear and chamfer size mm

da min	685
das2) Suggested value	718
Da max	805
Db max	805
ra max	3
rb max	3