Basic size of mm

d	190
D	400
B	78

The basic rated load is kN

trends C	1140
static state Co	1500

Fatigue load limit Pu	143

Rated rotation speed is r/min

Refer to the speed	1500
limit speed	2000

Specification standard holder	50

model

Standard holder	NU338ECM
Other holder 1)	-

Dimensions are mm

d	190
d1 ～	264
D1 ～	338
F,E	245
r1,2 min	5
r3,4 min	5
s1)	4.3

Shoulder gear and chamfer size mm

da min	210
Da max	240
db,Da min	249
Da max	380
ra max	4
rb max	4

Calculation coefficient

kr	0.15

Corner circle

model	HJ338EC
quality	4.3
Size B1	18
Size B2	29