28
EMER-FLEX
NEF POWER-LOCK
Dual-Side Power-Lock: Single Type couplings
●
The dual-side Power-Lock couplings in the NEF POWER LOCK Series offer machined shaft bores and incorporate Power-Locks (friction
coupling tools) and pressure flange sets on both sides, with shaft bores machined.
●
This type of coupling is suitable for applications using servo motors.
●
We maintain large stocks of products with a machined shaft bore. The Spacer Type can absorb all types of misalignment, while the single type
coupling can handle all misalignments except for parallel misalignment.
Unit:
mm
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)
Cross-section X-O-Y
N M
F
H
X
Y
U1
K
G
D
A
F
C
C
B
B
E
Viewed in the direction of arrows Z-Z
Disk bore diameter
Z
NEF10S，NEF18S，NEF25S
2 -
φ
Q x R, Drilled
Square hub
Reamer bolt
Disk
Washer A
Washer B
U-nut
Power-Lock
Pressure flange
Pressure bolt
NEF04S
2 -
φ
Q x R, Drilled
Model No.
Allowable Torque
N
･
m {k
g
f
･
m}
Max. Rotation
Speed
r/min
*
Standard Stock
Shaft Dia.
*
Max.
Shaft Dia.
Torsional Stiffness
N
･
m/rad {k
g
f
･
m/rad}
A
B
C
D
D
NEF25S
245 {25}
15000
18
-
42
42
25.5
×
10
4
{2.6
×
10
4
}
157 {16 }
108.2
33.5
12
45
NEF04S
39.2 { 4}
20000
10
-
22
22
2.45
×
10
4
{0.25
×
10
4
}
40.2 { 4.1}
75.9
25.4
8
29
NEF10S
98 {10}
20000
14
-
35
35
8.8
×
10
4
{0.9
×
10
4
}
58.8 { 6.0}
83.4
25.4
10
37
NEF18S
176 {18}
18000
14
-
35
35
15.7
×
10
4
{1.6
×
10
4
}
127 {13 }
91.7
28.7
10
39
Model No.
N
Q
R
NEF25S
4
8
13
NEF04S
4
5
10
NEF10S
4
7
10
NEF18S
4
7
10
F
E
G
H
K
L
3
6.1
52
−
67.5
40
3
6.6
66
47
81
54
3
8.3
66
49
93
54
3
11.2
78
60
104
64
M
M6
×
22
r
M6
×
22
r
M6
×
22
r
M8
×
28
r
Axial Spring Constant
N/mm {k
g
f/mm}
U
Allowable Misalignment
Weight
k
g
Moment of
Inertia
k
g
・
cm
2
GD
2
{
k
g
f
・
cm
2
}
Angular
Misalignment
de
g
(Note)
Axial
Displacement
−
1
±
0.8
0.9
3.0
{
11.9}
66
1
±
1.0
1.2
8.25
{
33 }
68
1
±
1.2
1.7
14.8
{
59 }
78.3
1
±
1.4
2.7
28.8
{
115 }
Single Type
*
1: Indicate the smaller bore diameter first.
*
2: Indicate the rough bore (symbol “R”) first.
NEF18S - B30P2 X B35P2
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. 21)
E: Keyway of old JIS Type 2 (See p. 21)
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
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...
