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MJC - Metric Clamp Jaw Coupling

Metric Clamp Jaw Coupling

Features

  • Large torque capacity
  • Electrically isolating
  • Balanced design
  • Replaceable spider
  • Bore tolerance: +.025mm/-.000mm
  • Maximum speed: 8,000 RPM
  • Temperature Range: -10°F to 180°F

Notes

  • Hubs available in stainless steel
  • Inch and metric hubs (set screw or clamp) can be combined into a single coupling as long as they have the same outside diameter (OD)
Ruland Hub Size (OD) Equivalents
Inch
Metric
8
0.500"
=
13
12.7mm
10
0.590"
=
15
15.0mm
12
0.750"
=
19
19.1mm
16
1.000"
=
25
25.4mm
21
1.313"
=
33
33.3mm
26
1.625"
=
41
41.3mm
32
2.000"
=
51
50.8mm
36
2.250"
=
57
57.2mm
distributor

How to Specify

For a complete coupling, order two hubs and one spider.

To order hubs, choose any bore sizes (inch or metric in any style) available in the same outside diameter (OD). Part numbers are in the following format with an example of an inch to metric mixed coupling.

order mjc

order jc

To order spider, choose durometer and hub body size (OD). Inch dimensions are on the left side of the “/” and metric sizes are on the right. For example:

order jd
 
 
Jaw Couplings
Clamp Jaw Coupling
Set Screw Jaw Coupling
Jaw Coupling Spider
Coupling Support Form
Product Index
 
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Hubs

  Click part number for 3D CAD file
Aluminum Bore
B (mm)		 OD
(mm)		 Hub Length
LH (mm)		 Coupling Length
L (mm)		 Shaft Penetration
(mm)		 Clamp Screw
MJC15-3-A 3 15.0 7.6 21.8 7.6 M2
MJC15-4-A 4
MJC15-5-A 5
MJC15-6-A 6
MJC19-4-A 4 19.1 9.8 27.2 9.8 M2.5
MJC19-5-A 5
MJC19-6-A 6
MJC19-7-A 7
MJC19-8-A 8
MJC25-6-A 6 25.4 11.9 35.3 11.9 M3
MJC25-7-A 7
MJC25-8-A 8
MJC25-9-A 9
MJC25-10-A 10
MJC25-12-A 12
MJC33-8-A 8 33.3 15.0 44.5 15.0 M3
MJC33-9-A 9
MJC33-10-A 10
MJC33-12-A 12
MJC33-14-A 14
MJC33-15-A 15
MJC33-16-A 16
MJC41-10-A 10 41.3 18.0 53.0 18.0 M4
MJC41-12-A 12
MJC41-14-A 14
MJC41-15-A 15
MJC41-16-A 16
MJC41-17-A 17
MJC41-19-A 19
MJC41-20-A 20
MJC51-12-A 12 50.8 20.8 61.0 20.8 M5
MJC51-14-A 14
MJC51-15-A 15
MJC51-16-A 16
MJC51-17-A 17
MJC51-19-A 19
MJC51-20-A 20
MJC51-25-A 25
MJC57-14-A 14 57.2 28.7 80.0 28.7 M6
MJC57-15-A 15
MJC57-16-A 16
MJC57-17-A 17
MJC57-19-A 19
MJC57-20-A 20
MJC57-25-A 25
MJC57-30-A 30

Spiders

  Click part number for 3D CAD file
Part Number OD (mm) Durometer/
Color		 Torsional
Stiffness
(Deg/Nm)		 Nominal
Torque
(Nm)		 Peak
Torque
(Nm)		 MISALIGNMENT
Angular (Deg) Parallel (mm) Axial Motion (mm)
JD10/15-98R 15.0 98 Shore A/RED 1.068 0.9 1.8
0.8 0.05 0.51
JD12/19-98R 19.1 98 Shore A/RED 1.007 1.7 3.4
0.8 0.08 0.51
JD16/25-98R 25.4 98 Shore A/RED 0.212 8.5 17.0
0.8 0.08 0.76
JD21/33-98R 33.3 98 Shore A/RED 0.106 9.9 19.7
0.8 0.08 0.76
JD26/41-98R 41.3 98 Shore A/RED 0.053 18.7 37.4
0.8 0.10 1.27
JD32/51-98R 50.8 98 Shore A/RED 0.035 31.2 62.3
.0.8 .0.13 .1.27
JD36/57-98R 57.2 98 Shore A/RED 0.026 46.5 92.9
.0.8 .0.10 .1.27
JD10/15-92Y 15.0 92 Shore A/YELLOW 2.384 0.6 1.1
.0.9 .0.10 .0.51
JD12/19-92Y 19.1 92 Shore A/YELLOW 2.269 1.0 2.0
.0.9 .0.10 .0.51
JD16/25-92Y 25.4 92 Shore A/YELLOW 0.592 3.3 6.6
.0.9 .0.13 .0.76
JD21/33-92Y 33.3 92 Shore A/YELLOW 0.397 4.0 7.9
.0.9 .0.13 .0.76
JD26/41-92Y 41.3 92 Shore A/YELLOW 0.106 11.0 22.0
.0.9 .0.15 .1.27
JD32/51-92Y 50.8 92 Shore A/YELLOW 0.044 24.9 49.8
.0.9 .0.15 .1.27
JD36/57-92Y 57.2 92 Shore A/YELLOW 0.035 32.3 64.6
.0.9 .0.13 .1.27
JD10/15-85B 15.0 85 Shore A/BLUE 3.972 0.3 0.5
.1 .0.13 .0.51
JD12/19-85B 19.1 85 Shore A/BLUE 3.583 0.6 1.1
.1 .0.13 .0.51
JD16/25-85B 25.4 85 Shore A/BLUE 0.953 1.7 3.4
.1 .0.15 .0.76
JD21/33-85B 33.3 85 Shore A/BLUE 0.662 2.0 4.1
.1 .0.15 .0.76


Note 1 Hardware is alloy steel with black oxide finish.
Note 2 Performance ratings are for guidance only. The user must determine suitability for a particular application.
Note 3 Torque ratings for the couplings are based on the physical limitations/failure point of the spiders. Under normal/typical conditions the hubs are capable of holding up to the nominal torque of the spiders. In some cases, especially when the smallest standard bores are used or where shafts are undersized, slippage on the shaft is possible below the nominal torque of the spiders. Keyways are available to provide additional torque capacity in the shaft/hub connection when required. Please consult technical support for more assistance.

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