18
EMER-FLEX
NEF-W
Notes 1. All sizes are custom-made.
2. When placing an order, specify dimension
“
J
”
. Consult with us if your required dimension is 6000 mm or greater.
3. When the Long Spacer Type is used at a high rotation speed, or if dimension
“
J
”
is extremely long, balance adjustment or a critical speed check may be required. See p. 9.
4. Contact us to vertically install a Long Spacer Type coupling.
5. The NEF10W, 18W and 25W Power-Lock Type couplings use the square hub for power lock. (See p. 12)
6. Refer to the following description and check the key surface pressure in accordance with your operating conditions. The hub material is S45C.
Installation (Example)
Reference Number System (Example)
Roller table
Roller
Roller
Pillow block
EMER-FLEX coupling
EMER-FLEX coupling
Miter gearbox
Miter
gearbox
Unit:
mm
Model No.
Type
(Number
of Bolts)
Allowable Torque
N
･
m{k
g
f
･
m}
Rough
Bore
d
Max.
Bore Dia.
(Keyway)
B
D
D
E
H
N
3
A
J
Allowable Misalignment
Angular
Misalignment
θ（
de
g
）
Axial
Displacement
Parallel
Misalignment
ε
NEF 04W
4
39.2{ 4}
8
23
25.4
29
6.1
34
32
2B
＋
J
2
±
1.6
NEF 10W
4
98 { 10}
10
32
25.4
37
6.6
46
42
2
±
2.0
NEF 18W
4
176 { 18}
12
35
28.7
39
8.3
51
46
2
±
2.4
NEF 25W
4
245 { 25}
15
42
33.5
45
11.2
61
56
2
±
2.8
NEF 45W
4
441 { 45}
15
50
41.1
51
11.7
71
68
2
±
3.2
NEF 80W
4
784 { 80}
15
60
47.8
61
11.7
84
80
2
±
3.6
NEF130W
4
1270 { 130}
25
74
57.2
73
16.8
106
102
2
±
5.0
NEF210W
4
2060 { 210}
25
83
63.5
84
17
118
115
2
±
5.4
NEF340W
4
3330 { 340}
45
95
76.2
97
21.6
137
132
2
±
6.6
NEF540W
4
5290 { 540}
50
109
88.9 110
23.9
156
154
2
±
7.6
NEF700W
4
6860 { 700}
70
118 101.6 120
27.2
169
165.2
2
±
8.0
NEH 09W
6
8820 { 900}
70
111 110
144
19
161
159
1.4
±
3.2
NEH 14W
8
13700 { 1400}
70
111 127
155
19
161
159
1
±
2.1
NEH 20W
8
19600 { 2000}
75
133 146
178
19
193
190.7
1
±
2.4
NEH 30W
8
29400 { 3000}
75
152 165
201
21.5
218
216.3
1
±
2.8
NEH 41W
8
40200 { 4100} 120
165 171
218
24
240
232
1
±
2.8
NEH 55W
8
53900 { 5500} 130
187 225
252
29.5
272
267.4
1
±
3.6
NEH 70W
8
68600 { 7000} 150
205 247
275
31.3
297
280
1
±
3.8
NEH 90W
8
88200 { 9000} 150
231 278
304
32.0
334
323.9
1
±
4.3
NEH110W
8
107800 {11000} 190
254 305
343
32.5
364
355.6
1
±
4.8
NEH135W
8
132300 {13500} 190
263 317
350
34.0
382
381
1
±
5.0
NEH150W
8
147000 {15000} 210
275 331
368
34.5
399
381
1
±
5.6
NEH180W
8
176400 {18000} 210
289 347
380
35.5
419
406.4
1
±
5.7
K
N
2
67.5
27
81
36
93
40
104
50
126
60
143
70
168
92
194
103
214
120
246
134
276
145.2
276
135
276
135
308
160.7
346
186.3
375
196
445
227.4
470
230
511
273.9
556
305.6
587
331
629
331
654
344.6
N
1
17
26
30
38
48
61
76
90
110
125
136
127
127
150
175
187
207
209
247
277
304
304
319
(
J
−
E
)
×
sin
θ
Required length
(
Max 6000
)
Required length
(
Max 4000
)
*
1: Indicate the smaller bore diameter first.
*
2: Indicate the rough bore (symbol “R”) first.
*
[Reference] Key Surface Pressure Calculation
P
＝
19600
×
T
（
N/mm
2
）
D
×
t
×
B
(T = Operating torque (N·m), D = Bore diameter (mm), t = Key height (mm), B = Effective key length (mm))
D
B
t
NEF25W - N35JV X N40E - J1000
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.
Indicates the
lower-side bore
diameter of the
vertical Long
Spacer Type
coupling.
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)
J: Long Spacer
JS: Long Spacer (standard
length) (See p. 19)
JT: Single Plate Spacer
(See p. 20)
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...
