22
EMER-FLEX
NEF
Notes 1. See p. 12 for extended diameter and long hub dimensions.
With the long hub, the overall length is extended because dimension
“
B
”
is lengthened.
2. All stocked models are manufactured with pilot bores.
Models NEF04W through NEF130W have been stocked with shaft bores machined within the above standard stock bore diameter range. (New JIS key, normal type)
3. The maximum rotation speed depends on the transmission capacity of the coupling.
No balance adjustment has been conducted.
4. The weight, moment of inertia and GD
2
are the values at maximum bore diameter (keyway). For the extended-diameter hub and the long hub, add the individual values listed below.
5. The allowable axial displacement is based on the assumption that the angular misalignment is
“
0
”
.
6. Check the key surface pressure in accordance with your operating conditions (see p. 18). The hub material is S45C.
Reference Number System (Example)
Single
Unit:
mm
Model No.
Allowable
Torque
N
･
m{k
g
f
･
m}
Max. Rotation
Speed
r/min
Rough
Bore
d
Standard
Stock Bore
Dia. Range
Keyway Max. Shaft Dia.
φ
Torsional Stiffness
N
･
m/rad{k
g
f
･
m/rad}
Axial Spring
Constant
N/mm{k
g
f/mm}
A
1
A
2
Standard
Hub
Extended-
Dia. Hub
NEF700S
6860{700}
3100
50
−
118
130
58.8
×
10
5
{60
×
10
4
}
588 {60 }
230.4
278.8
NEF02S
19.6{ 2}
20000
8
14
〜
25
20
25
1.96
×
10
4
{ 0.2
×
10
4
}
68.6{ 7.0}
44.9
−
NEF04S
39.2{ 4}
20000
8
11
〜
22
23
29
2.45
×
10
4
{ 0.25
×
10
4
}
40.2{ 4.1}
56.9
71.5
NEF10S
98 { 10}
20000
10
12
〜
30
32
40
8.82
×
10
4
{ 0.9
×
10
4
}
58.8{ 6 }
57.4
72
NEF18S
176 { 18}
18000
12
14
〜
35
35
42
15.7
×
10
4
{ 1.6
×
10
4
}
127 {13 }
65.7
82
NEF25S
245 { 25}
15000
15
18
〜
42
42
48
25.5
×
10
4
{ 2.6
×
10
4
}
157 {16 }
78.2
94.7
NEF45S
441 { 45}
13000
15
25
〜
50
50
60
44.1
×
10
4
{ 4.5
×
10
4
}
219 {22.3}
93.9
112.8
NEF80S
784 { 80}
12000
15
30
〜
60
60
70
78.4
×
10
4
{ 8
×
10
4
}
307 {31.3}
107.3
129.5
NEF130S
1270{130}
10000
25
35
〜
70
74
80
14.7
×
10
5
{15
×
10
4
}
355 {36.2}
131.2
159
NEF210S
2060{210}
8000
25
−
83
90
22.5
×
10
5
{23
×
10
4
}
441 {45 }
144
200.5
NEF340S
3330{340}
7500
45
−
95
110
32.3
×
10
5
{33
×
10
4
}
470 {48 }
174
237.8
NEF540S
5290{540}
3400
50
−
109
120
43.1
×
10
5
{44
×
10
4
}
549 {56 }
201.7
252.8
Long
Hub
−
23
32
35
42
50
60
74
83
95
109
118
*
1: Indicate the smaller bore diameter first.
*
2: Indicate the rough bore (symbol “R”) first.
NEF18S - N30J X K40E
Model No.
Single Type
Bore Diameter
(Rough bore: R)
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)
Model No.
A
3
B
B
L
E
H
H
L
K
T
Allowable Misalignment
Weight
k
g
Moment of Inertia
k
g
m
2
GD
2
{k
g
f cm
2
}
Angular
Misalignment
de
g
Axial
Displacement
(Note)
NEF700S
327.2 101.6
150
27.2
169
209
276
40
1
4.0
37
3250 10
4
{ 13000 }
NEF02S
20
4.9
32
45
57
11
1
0.8
0.33
1.23 10
4
{ 4.9}
NEF04S
86.1
25.4
40
6.1
34
50
67.5
15.5
1
0.8
0.6
2 10
4
{ 8 }
NEF10S
86.6
25.4
40
6.6
46
66
81
16
1
1.0
0.8
6 10
4
{ 25 }
NEF18S
98.3
28.7
45
8.3
51
66
93
23
1
1.2
1.3
13 10
4
{ 53 }
NEF25S
111.2
33.5
50
11.2
61
78
104
19
1
1.4
1.8
22 10
4
{ 89 }
NEF45S
131.7
41.1
60
11.7
71
92
126
23
1
1.6
4.3
56 10
4
{ 224 }
NEF80S
151.7
47.8
70
11.7
84
104
143
29.5
1
1.8
6.9
110 10
4
{ 440 }
NEF130S
186.8
57.2
85
16.8
106
129
168
20
1
2.5
11.5
270 10
4
{ 1080 }
NEF210S
257
63.5
120
17.0
118
147
194
32.5
1
2.7
16.4
520 10
4
{ 2080 }
NEF340S
301.6
76.2
140
21.6
137
166
214
19.5
1
3.3
28.0
880 10
4
{ 3520 }
NEF540S
303.9
88.9
140
23.9
156
191
246
24.5
1
3.8
33
1750 10
4
{ 7000 }
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...
