Basic size of mm

d	300
D	540
B	85

The basic rated load is kN

trends C	1420
static state Co	2120

Fatigue load limit Pu	183

Rated rotation speed is r/min

Refer to the speed	1300
limit speed	1800

quality	89.5
model	NU260MA

Dimensions are mm

d	300
d1 ～	-
D1 ～	451
F,E	364
r1,2 min	5
r3,4 min	5
s1)	4.8

Shoulder gear and chamfer size mm

da min	320
Da max	358
db,Da min	368
Da max	520
ra max	4
rb max	4

Calculation coefficient

kr	0.15

Corner circle

model	-
quality	-
Size B1	-
Size B2	-