12
EMER-FLEX
NEF
DIMENSIONS
●
Extended-Diameter Hubs
If the target shaft diameter exceeds the maximum shaft bore diameter of the standard hub regardless of there being sufficient leeway in the
transmission capacity, you may select the extended-diameter hub that provides a larger boss diameter (dimension
“
H
”
). This way you can avoid
increasing the model size.
●
Long Hubs
If the key surface pressure is too high with the standard hub, you may select the long hub that provides a longer dimension
“
B
”
, which lowers the key
surface pressure.
●
Square Hubs
The square hub is used as a combination with the EL Series Power-Lock Type coupling and the pressure flange set. The pressure bolt tap has been
machined into the hub.
Standard Hub / Long Hub
Max.
bore
dia.
Max.
bore
dia.
Max.
bore
dia.
Extended-Dia. Hub
Square Hub
H
DIMENSIONS
NEF02
NEF04
NEF10
NEF18
NEF25
NEF45
NEF80
NEF130
NEF210
NEF340
NEF540
NEF700
Model No.
Standard Hub
Extended-
Dia. Hub
Long Hub
Square Hub
*
Note 1
Standard Hub
Long Hub
Extended-
Dia. Hub
Square Hub
K
Standard Hub / Long Hub
Extended-Dia. Hub
Square Hub
Rough Bore
d
B
H
Max. Bore Dia.
57
67.5
81
93
104
126
143
168
194
214
246
276
20
25.4
25.4
28.7
33.5
41.1
47.8
57.2
63.5
76.2
88.9
101.6
—
40
40
45
50
60
70
85
120
140
140
150
—
—
25.4
28.7
33.5
—
—
—
—
—
—
—
32
34
46
51
61
71
84
106
118
137
156
169
45
50
66
66
78
92
104
129
147
166
191
209
—
—
47
49
60
—
—
—
—
—
—
—
8
8
10
12
15
15
15
25
25
45
50
50
20
23
32
35
42
50
60
74
83
95
109
118
—
—
—
—
—
35
45
65
71
85
—
—
25
28
40
42
48
60
70
80
90
110
120
130
20
22
30
35
42
50
60
75
85
100
110
120
—
—
35
35
42
—
—
—
—
—
—
—
Keyway
Power-Lock
Keyway
Power-Lock Power-Lock
Unit: mm
*
Note: Only the standard hub can be used with the NEF02.
Hub for Taper Shaft Bore
For a
φ
16 taper shaft bore, the following four types of hubs are available in stock:
①
NEF04 Hub-16T
②
NEF04 Hub-L16T
③
NEF10 Hub-16T
④
NEF10 Hub-L16T
Dimension ÒAÓ
Servo motor shaft
Dimension
ÒDÓ
Dimension ÒAÓ
Dimension
ÒDÓ
Servo motor shaft
Servo motor shaft
Taper
Servo motor shaft
NEF Series Hub 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...