24
EMER-FLEX
NEF CLAMP
Single Type
Reference Number System (Example)
Unit:
mm
Model No.
E
H
H
L
H
S
K
U
T
Weight
k
g
Moment of Inertia
k
g
・
cm
2
GD
2
k
g
f
・
cm
2
Allowable Misalignment
NEF02S
4.9
32
45
−
57
−
11
0.33(0.39)
1.23( 1.56)
4.9 ( 6.24)
1
±
0.8
NEF04S
6.1
34
50
−
67.5
−
15.5
0.78(0.79)
2.78( 3.23)
11.1 ( 12.9)
1
±
0.8
NEF10S
6.6
46
−
47
81
66
16
0.92(0.80)
6.43( 5.85)
25.7 ( 23.4)
1
±
1.0
NEF18S
8.3
51
−
49
93
68
23
1.45(1.24)
13.5 ( 12.2)
54.1 ( 48.8)
1
±
1.2
NEF25S
11.2
61
−
60
104
78.3
19
2.1 (1.8 )
23
( 20.9)
92 ( 83.4)
1
±
1.4
NEF45S
11.7
71
92
−
126
−
23
4.6 (4.7 )
57.5 ( 65.8)
230 ( 263)
1
±
1.6
Angular
Misalignment
de
g
Axial
Displacement
Model No.
Allowable Torque
N
･
m{k
g
f
･
m}
Max. Rotation
Speed
r/min
Standard Stock Bore Diameter
Max. Bore
Dia.
Torsional Stiffness
N
･
m/rad {k
g
f
･
m/rad}
Axial Spring Constant
N/mm {k
g
f/mm}
A
B
NEF02S
19.6{ 2}
20000
!0
,
!2
,
!5
,
!8
,
19
,
20
,
22
,
24
,
25
25
1.96
×
10
4
{0.2
×
10
4
}
68.6{ 7.0}
44.9
20
NEF04S
39.2{ 4}
20000
!2
,
!4
,
!5
,
!6
,
!7
,
19
,
20
,
22
,
24
,
25
26
2.45
×
10
4
{0.25
×
10
4
}
40.2{ 4.1}
56.9
25.4
NEF10S
98 {10}
20000
!5
,
!8
,
@0
,
@2
,
¤4
,
¤5
,
¤8
,
‹0
,
‹5
35
8.82
×
10
4
{0.9
×
10
4
}
58.8{ 6 }
57.4
25.4
NEF18S
176 {18}
18000
!9
,
@2
,
@5
,
¤88
,
‹0
,
‹2
,
‹5
35
15.7
×
10
4
{1.6
×
10
4
}
127 {13 }
65.7
28.7
NEF25S
245 {25}
15000
@5
,
#0
,
‹2
,
‹5
,
‹8
,
›0
,
›2
42
25.5
×
10
4
{2.6
×
10
4
}
157 {16 }
78.2
33.5
NEF45S
441 {45}
13000
#0
,
#8
,
$0
,
$2
,
45
,
50
,
55
55
44.1
×
10
4
{4.5
×
10
4
}
219 {22.3}
93.9
41.1
NEF Clamp Method: Single Type Couplings
Notes 1. The maximum rotation speed depends on the transmission capacity of the coupling.
No balance adjustment has been conducted.
2. The circled standard stock bore diameters are for the standard hubs, the diameters in squares are for the square hub, and unmarked diameters are for the extended-diameter hubs.
3. The weight, moment of inertia and GD
2
are the values at maximum bore diameter for the round hub. Values in parentheses for the NEF02/04/45 apply to the extended-diameter hub. Values in
parentheses for the NEF10/18/25 apply to the square hub.
4. The allowable axial displacement is based on the assumption that the angular misalignment is
“
0
”
.
5. To prevent the clamp bolt from loosening, the square hub type uses a U-nut, while other types use a NYLOCK bolt.
Single Type
NEF02S/04S/10S/18S/25S/45S standard hub
/04S/45S extended-diameter hub
NEF02S/04S/45S extended-diameter hub
8S/25S square hub
NEF10S/18S/25S square hub
*
1: Indicate the smaller bore diameter first.
*
2: Indicate the rough bore (symbol “R”) first.
NEF18W - N25C X B30C
Model No.
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 (See p. 15)
E: Keyway of old JIS Type 2 (See p. 15)
C: Clamp
P2: Power-Lock (See p. 26)
*
The number indicates the number of
Power-Locks.
T: Taper Shaft Bore (See p. 45)
Type
S: Single Type
W: Spacer Type
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...
