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Couplings for the NEMA and IEC Adapters
Depending on the size of the input adapter to the gearbox, NORD Gear supplies two styles of couplings - BoWex
(jaw) couplings.
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BoWex
Couplings
NORD C-face adapter input shafts have a machined spline on the end. NORD incorporates two styles of BoWex
styles. The "J" style is a one-piece coupling with a metal hub and nylon spline. The "M" style is a two-piece coupling – the metal hub and a
nylon sleeve. Nylon and steel components allow them to operate in high ambient temperatures without lubrication or maintenance.
x
Nylon sleeves resist dirt, moisture, most chemicals and petroleum products
x
No lubrication required
x
Operating Conditions: -22qF - 195qF (-30qC - 90qC)
x
Higher temperature coupling sleeve available up to 250qF (120qC)
x
Special bore available
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BoWex
Mechanical Ratings
"J" Style
Coupling
Available
Type
Bore Sizes
11, 14 mm
J14
5/8 in.
19, 24 mm
J24
5/8, 7/8 in
28mm
J28
1-1/8 in
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Rotex
Couplings
The cast iron jaw type couplings have an integral urethane "spider" that
provides smooth transmission of the motor torque. A set screw on the
coupling prohibits axial movement along the motor shaft.
x
Excellent shock and vibration dampening
x
Excellent resistance to oils and most chemicals
x
No metal-to-metal contact
x
Operating Conditions: -40qF - 195qF (-40qC - 90qC)
x
Higher temperature material (Hytrel) spider available up to 230qF
(110qC)
x
Special bores available
“
Rotex
Mechanical Ratings
Coupling
Available
Type
Bore Sizes
R19
14, 19 mm
R24
19, 24 mm
R28
32, 38 mm
1.89" (48mm)
R38
2.44" (62mm)
R42
42, 48 mm
R48
1-5/8, 1-7/8 in
R65
2-1/8, 2-3/8 in
65, 75, 80 mm
R90
2-1/8, 2-3/8 in
BIM 1009/2007/09
Cont. / Peak
Input
Torque
10 / 20 Nm
IEC 63, 71
89 / 177 lb-in
NEMA 56C
20 / 40 Nm
IEC 80, 90
177 / 354 lb-in
NEMA 56C,140TC
45 / 90 Nm
IEC 100, 112
399 / 797 lb-in
NEMA 180TC
Continuous / Peak
Torque
17 / 34 Nm
150 / 300 lb-in
60 / 120 Nm
530 / 1,060 lb-in
95 / 190 Nm
840 / 1,680 lb-in
190 / 382 Nm
Max Bore
1,680 / 3,380 lb-in
310 / 620 Nm
Max Bore
2,740 / 5,480 lb-in
310 / 620 Nm
2,740 / 5,485 lb-in
60 mm
625 / 1,250 Nm
5,530 / 11,060 lb-in
2,400 / 4,800 Nm
21,240 / 42,480 lb-in
"M" Style
Coupling
Available
Type
Bore Sizes
M14/M24/M28
M38
1-1/8, 1-3/8 in.
M42
M48
Hub Design 1
Inputs Used With
SEK/SEP 100
SEK/SEP 100, 130
SEK/SEP 165, 215
-
-
IEC 160, 180
NEMA 250T, 280T
SEK/SEP 300, 215
IEC 225
NEMA 320T, 360T
IEC 250, 280, 315
NEMA 360T, 400TS, 440TS
Page 2 of 8
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(gear tooth) and Rotex
“
couplings, the "J" and "M"
Cont. / Peak
Torque
Same as
Same as
"J" style
"J" style
38 mm
80 / 160 Nm
708 / 1,416 lb-in
42 mm
100 / 200 Nm
1-5/8 in
885 / 1,770 lb-in
48 mm
140 / 280 Nm
1-7/8 in
1240 / 2,478 lb-in
Spider
Hub Design 1a
Urethane
98 Shore A Hardness
Color: Red
Urethane
92 Shore A Hardness
Color: Yellow
“
Input
Same as
"J" style
IEC 132
NEMA 180TC,
210TC
IEC 160
NEMA 250TC
IEC 180
NEMA 280TC
Spider
www.nord.com
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