19
TRANSMISSION CAPACITY / DIMENSIONS
NEF-W
Long Spacer Type (standard lengths)
We maintain a stock of NEF Series Long Spacer Type couplings at ISO standard lengths available for a quick delivery. The spacer offers a well-
balanced design with reduced thickness, suitable for back pullout type pumps, fans and compressors. This type of coupling can also be combined
with the extended-diameter hub, long hub, and clamp types.
Long Spacer Type (standard length)
Long Spacer Types in Stock
Note) Refer to the dimension table for dimension
“
J
”
.
Dimension
“
J
”
indicates the distance between hub end faces.
Actual spacer length = J
–
2E
N
F
No
Do
PCD
Model No.
Spacer Length, Dimension
“
J
”
(mm)
100 127 140 180 200 250
NEF10W-
JS
□□□
○
○
NEF18W-
JS
□□□
○
○
NEF25W-
JS
□□□
○
○
○
NEF45W-
JS
□□□
○
○
○
○
○
○
NEF80W-
JS
□□□
○
○
○
○
○
NEF130W-
JS
□□□
○
○
○
○
○
NEF210W-
JS
□□□
○
○
○
NEF340W-
JS
□□□
○
○
Unit:
mm
Reference Number System (Example)
*
1: Indicate the smaller bore diameter first.
*
2: Indicate the rough bore (symbol “R”) first.
NEF25W - N35J X N40E - JS140
Model No.
Spacer Type
Bore Diameter
(Rough bore: R)
Dimension ÒJÓ
Type of Hub
N: Standard Hub
K: Extended-Dia. Hub
L: Long Hub
B: Square Hub
* See p. 12.
Shaft coupling method
J: Keyway of new JIS normal type
E: Keyway of old JIS Type 2
C: Clamp (See p. 23)
P2: Power-Lock (See p. 26)
T: Taper Shaft Bore (See p. 45)
JS: Long Spacer Type
(standard length)
Model No.
Allowable
Torque
N · m{k
g
f · m}
Rough
Bore
d
Max.
Bore Dia.
(Keyway)
B
D
D
E
H
K
A
F
N No
T PCD
Weight
k
g
Moment
of Inertia
k
g
cm
2
GD
2
{
k
f
g
cm
2
}
Allowable Misalignment
Angular
Misalignment
θ
(de
g
)
Parallel
Misalignment
ε
NEF 25W
JS127
245{ 25}
15
42
33.5
45 11.2
61 104
194
9
47
58
21
82
3.5
43.8 { 175}
2
2.02
NEF340W
JS200
3330{340}
45
95
76.2
97 21.6 137 214
352.4
16.5 118 132 19.5 172
42.4 1444
{5776}
2
3.11
NEF 10W
JS100
98{ 10}
10
32
25.4
37
6.6
46
81
150.8
7.5 37
46
16
63
1.7
12.8 {
51}
2
1.63
JS140
190.8
1.9
13.5 {
54}
2
2.32
NEF 18W
JS100
176{ 18}
12
35
28.7
39
8.3
51
93
157.4
9
38
48
23
71
2.6
25.8 { 103}
2
1.60
JS140
197.4
2.8
26.8 { 107}
2
2.30
JS100
167
3.3
42.3 { 169}
2
1.55
JS140
207
3.6
44.3 { 177}
2
2.25
NEF 45W
JS100
441{ 45}
15
50
41.1
51 11.7
71 126
182.2
11.5
58
69
23
96
6.9
97.5 { 390}
2
1.54
JS127
209.2
7.2 100 { 400}
2
2.01
JS140
222.2
7.3 101 { 404}
2
2.24
JS180
262.2
7.6 104.5 { 418}
2
2.94
JS200
282.2
7.8 106.3 { 425}
2
3.28
JS250
332.2
8.2 110.8 { 443}
2
4.16
NEF 80W
JS127
784{ 80}
15
60
47.8
61 11.7
84 143
222.6
14
71
81
29.5 111
10.8
201.8 { 807}
2
2.01
JS140
235.6
11
203.5 { 814}
2
2.24
JS180
275.6
11.3
208.8 { 835}
2
2.94
JS200
295.6
11.5
211.5 { 846}
2
3.28
JS250
345.6
12
218.3 { 873}
2
4.16
NEF130W
JS127
1270{130}
25
74
57.2
73 16.8 106 168
241.4
14
92 102 20
134
16.7
420.8 {1683}
2
1.92
JS140
254.4
16.8
424.5 {1698}
2
2.15
JS180
294.4
17.3
435.8 {1743}
2
2.85
JS200
314.4
17.6
441.5 {1766}
2
3.20
JS250
364.4
18.2
455.5 {1822}
2
4.07
NEF210W
JS140
2060{210}
25
83
63.5
84 17
118 194
267
16.5 103 114 32.5 153
24
851.5 {3406}
2
2.15
JS180
307
24.5
868.8 {3475}
2
2.84
JS200
327
24.8
877.5 {3510}
2
3.19
JS180
332.4
42
1427.3 {5709}
2
2.76
Axial
Displacement
±
2.0
±
2.4
±
2.8
±
3.2
±
3.6
±
5.0
±
5.4
±
6.6
Summary of Contents for ECHT-FLEX NEF130W
Page 1: ...EMER FLEX COUPLING...
Page 9: ...8 EMER FLEX Example of Mounting Example of Mounting...
Page 36: ...35 35 NEW PRODUCTS...
