30
EMER-FLEX
NEF POWER-LOCK
Pressure Flange Set with Rough Bore
This pressure flange mounts a Power-Lock to a
square hub (see p. 12) and is convenient for servo
motor or ball screw applications.
The pressure flange set is comprised of special pressure flanges (2 pieces)
and pressure bolts (8 pieces).
Use the pressure flange set together with the square hub.
(For NEF04, use the extended-diameter hub.)
The pressure bolts are specially designed to provide a tensile strength of
10.9.
Power-Locks for NEF45 or larger sizes can be also machined. The extended-diameter hub is
used for these sizes.
Unit:
mm
Notes 1. All models are in stock.
2. The weight, moment of inertia and GD
2
are the values for one set, including the pressure flanges (maximum bore diameter) and pressure bolts.
3. For recommended machining dimensions, see p. 44.
Note: (10.9) indicates the bolt strength rating.
Model No.
A
B
C
Rough Bore Dia.
G
L
N
M
Q
R
di
NEF25 -F
18
6 12
18.2
47.8
78
64
4 9 8 13
NEF04 -F
14
6 8
10.1
25.8
52
40
4 6.5
5 10
NEF10 -F
16
6 10
13.0
39.8
66
54
4 6.6 7 10
NEF18 -F
do
Compatible
Shaft Dia.
Bolt Size/Quantity
Weight
k
g
Moment of
Inertia
k
g
・
cm
2
GD
2
{k
g
f
･
cm
2
}
10
-
22
M6 x 22
r
(10.9), 4
pcs.
0.14
0.48
{ 1.9}
14
-
35
M6 x 22
r
(10.9), 8
pcs.
0.40
2.75
{11 }
18
-
42
M8 x 28
r
(10.9), 8
pcs.
0.80
8.25
{33 }
Unit:
mm
Model No.
A
B
C
Finished Bore Dia.
G
L
N
M
Q
R
di
NEF210 -F
29
9
20
147
127
4
11
14
20
NEF 45 -F
23
8
15
See the “Recommended
Shaft Bore Machining
Methods” table on p. 44.
92
78
4
9
10
15
NEF 80 -F
24
104
88
4
11
12
15
NEF130 -F
do
Compatible
Shaft Dia.
Pressure Bolt
18
-
50
M 8
×
28
r
（
10.9
）
4
20
-
60
M10
×
35
r
（
10.9
）
4
35
-
85
M12
×
45
r
（
10.9
）
4
Reference Number System (Example)
Pressure Flange Dimensions for NEF45 or Larger Sizes
For the relationship between the transmission torque for the Power-Lock Type couplings and each shaft
bore diameter, see p. 31.
In addition to the EL Series Power-Lock Type couplings, other Power-Lock Types can be also
manufactured. Contact us for details.
Size (Note)
Quantity
8
16
27
9
18
129
112
4
11
12
15
28
-
75
M10
×
40
r
（
10.9
）
4
*
1: Indicate the smaller bore diameter first.
*
2: Indicate the rough bore (symbol “R”) first.
NEF45W - K45P2 X K50P2
Model No.
Type
S: Single Type
W: Spacer 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 (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)
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...
