Basic size of mm

d	400
D	540
B	140

The basic rated load is kN

trends C	2420
static state Co	6000

Fatigue load limit Pu	520

Rated rotation speed is r/min

Refer to the speed	480
limit speed	600

quality	96.5
model	NNCF4980CV

Dimensions are mm

d	400
d1 ～	451
D1 ～	488
E	501.74
b1	9.4
k	5
r1,2 min	4
s1)	7

Shoulder gear and chamfer size mm

da min	418
das2) Suggested value	444
Da max	522
ra max	3