Basic size of mm

d	105
D	190
B	36

The basic rated load is kN

trends C	300
static state Co	315

Fatigue load limit Pu	36.5

Rated rotation speed is r/min

Refer to the speed	3800
limit speed	4300

Specification standard holder	4.2

model

Standard holder	*NUP221ECP
Other holder 1)	ML

Dimensions are mm

d	105
d1 ～	134
D1 ～	164
F,E	125
r1,2 min	2.1
r3,4 min	2.1
s1)	-

Shoulder gear and chamfer size mm

da min	117
Da max	-
db,Da min	137
Da max	178
ra max	2
rb max	2

Calculation coefficient

kr	0.15

Corner circle

model	-
quality	-
Size B1	-
Size B2	-