27
NEF POWER-LOCK
Single-Side Power-Lock: Spacer Type Couplings
Spacer Type with Single-Side Power-Lock
Notes 1. * Both the hub and the pressure flange have machined shaft bores for double Power-Locks within the standard stock shaft diameter range. Select a Power-Lock shaft diameter from the table on p. 31.
2. * The maximum shaft diameter includes a margin for mounting the Power-Lock.
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.
5. The allowable axial displacement is based on the assumption that the angular misalignment is “0”.
6. NEF45 or larger sizes can be also manufactured with a Power-Lock. Contact for drawings.
Reference Number System (Example)
Model No.
Allowable Torque
N
･
m {k
g
f
･
m}
Max. Rotation
Speed
r/min
Rough
Bore
*
Standard Stock
Shaft Dia.
*
Max. Shaft Dia.
Torsional Stiffness
N
･
m/rad {k
g
f
･
m/rad}
Axial Spring
Constant
N/mm {k
g
f/mm}
A
B
C
Power-
Lock
Keyway
NEF25W
245 {25}
15000
15
18
-
42
42
42
12.7
×
10
4
{1.3
×
10
4
}
78.4 {8 }
135
33.5
12
NEF04W
39.2 { 4}
20000
8
10
-
22
22
23
1.18
×
10
4
{0.12
×
10
4
}
20.6 {2.1}
97.8
25.4
8
NEF10W
98 {10}
20000
10
14
-
35
35
32
3.92
×
10
4
{0.4
×
10
4
}
29.4 {3 }
102.8
25.4
10
NEF18W
176 {18}
18000
12
14
-
35
35
35
7.84
×
10
4
{0.8
×
10
4
}
63.7 {6.5}
117.4
28.7
10
Model No.
K
Q
R
U
Allowable Misalignment
Weight
k
g
Moment
of Inertia
k
g
・
cm
2
GD
2
{k
g
f
・
cm
2
}
Angular
Misalignment
de
g
Parallel
Misalignment
NEF25W
104
8
13
78.3
2
0.7
3.4
44
{178 }
NEF04W
67.5
4
7
−
2
0.5
1.2
6.2
{ 24.9}
NEF10W
81
7
10
66
2
0.55
1.6
13
{ 52 }
NEF18W
93
7
10
68
2
0.6
2.5
26
{103 }
F
E
G
H
L
M
N
3
6.1
52
34
40
M6
×
22
r
4
3
6.6
66
46
54
M6
×
22
r
4
3
8.3
66
51
54
M6
×
22
r
4
3
11.2
78
61
64
M8
×
28
r
4
J
36
39
47
53
2-
φ
Q x R, Drilled
Pressure flange
Power-Lock
Square hub
Reamer bolt
Washer B
Disk
Washer A
U-nut
Spacer
Standard hub
Pressure bolt
Extended-dia. hub
C
B
E
E
J
B
F
A
L
Spacer Type
NEF10W
,
NEF18W
,
NEF25W
Spacer Type NEF04W
(Note)
Axial
Displacement
±
1.6
±
2.0
±
2.4
±
2.8
*
1: Indicate the smaller bore diameter first.
*
2: Indicate the rough bore (symbol “R”) first.
NEF10W - L16T X B30P2
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 (See p. 23)
P2: Power-Lock
*
The number indicates the number of power
locks.
T: Taper Shaft Bore (See p. 45)
Type
S: Single Type
W: Spacer Type
TRANSMISSION CAPACITY / DIMENSIONS
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...
