Basic size of mm

d	190
D	340
B	55

The basic rated load is kN

trends C	800
static state Co	965

Fatigue load limit Pu	98

Rated rotation speed is r/min

Refer to the speed	2000
limit speed	3000

Specification standard holder	24.5

model

Standard holder	*NJ238ECMA
Other holder 1)	M

Dimensions are mm

d	190
d1 ～	244
D1 ～	295
F,E	230
r1,2 min	4
r3,4 min	4
s1)	3

Shoulder gear and chamfer size mm

da min	207
Da max	226
db,Da min	248
Da max	323
ra max	3
rb max	3

Calculation coefficient

kr	0.15

Corner circle

model	HJ238EC
quality	2.1
Size B1	13
Size B2	21.5