Basic size of mm

d	55
D	140
B	33

The basic rated load is kN

trends C	142
static state Co	140

Fatigue load limit Pu	18.6

Rated rotation speed is r/min

Refer to the speed	5600
limit speed	6300

Specification standard holder	2.5

model

Standard holder	NU411
Other holder 1)	-

Dimensions are mm

d	55
d1 ～	85.2
D1 ～	108
F,E	77.2
r1,2 min	2.1
r3,4 min	2.1
s1)	2.6

Shoulder gear and chamfer size mm

da min	69
Da max	74
db,Da min	79
Da max	126
ra max	2
rb max	2

Calculation coefficient

kr	0.15

Corner circle

model	-
quality
Size B1
Size B2