Basic size of mm

d	140
D	250
B	68

The basic rated load is kN

trends C	655
static state Co	830

Fatigue load limit Pu	93

Rated rotation speed is r/min

Refer to the speed	2800
limit speed	4800

Specification standard holder	15

model

Standard holder	*NU2228ECML
Other holder 1)	-

Dimensions are mm

d	140
d1 ～	179
D1 ～	217
F,E	169
r1,2 min	3
r3,4 min	3
s1)	4.4

Shoulder gear and chamfer size mm

da min	154
Da max	164
db,Da min	172
Da max	236
ra max	2.5
rb max	2.5

Calculation coefficient

kr	0.2

Corner circle

model	HJ2228EC
quality	1.05
Size B1	11
Size B2	23