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Jaw Coupling Hubs
This section will allow you to select hubs to be used individually or as part of an assembly. Ruland jaw coupling hubs undergo a proprietary machining process to produce a curved jaw profile that press fits with the spider, assuring zero-backlash operation. The curved jaw profile concentrates the forces to the center of the spider’s limbs, improving the effectiveness of the elastomer material. Jaw couplings are considered fail safe because if the spider were to fail, the jaws of the two hubs interlock for direct power transmission, allowing the application to be safely shut down for maintenance.
Features Zero backlash
Balanced design
Replaceable spider
RoHS3 and REACH Compliant
Maximum speed: 8,000 RPM
Bore tolerance:
+.001"/-.000"
+.03mm/-.00mm
Temperature Range:
-10°F to 180°F
-23°C to 82°C
Material
Aluminum hubs are standard
Stainless steel hubs are available upon request
How to Order Complete Coupling: Jaw couplings are an assembly of two hubs and one spider
Hubs: Choose two hubs in inch or metric in any style with the same outside diameter
Spider: Choose spider to match performance criteria. The spider must have the same outside diameter as both hubs.
Each hub and spider is sold separately
Products
Download CAD File:
JC26-12-A
JC26-12-A
As low as
$34.09
$50.00
Ruland JC26-12-A, 3/4" Jaw Coupling Hub, Aluminum, Clamp Style, 1.625" OD, 0.710" Length
Download CAD File:
JC32-12-A
JC32-12-A
As low as
$55.62
$81.58
Ruland JC32-12-A, 3/4" Jaw Coupling Hub, Aluminum, Clamp Style, 2.000" OD, 0.820" Length
Download CAD File:
JC36-12-A
JC36-12-A
As low as
$74.61
$109.43
Ruland JC36-12-A, 3/4" Jaw Coupling Hub, Aluminum, Clamp Style, 2.250" OD, 1.130" Length
Download CAD File:
JCC26-12-A
JCC26-12-A
As low as
$42.65
$62.55
Ruland JCC26-12-A, 3/4" Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 1.625" OD, 0.710" Length
Download CAD File:
JCC32-12-A
JCC32-12-A
As low as
$66.08
$96.91
Ruland JCC32-12-A, 3/4" Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 2.000" OD, 0.820" Length
Download CAD File:
JCC36-12-A
JCC36-12-A
As low as
$87.18
$127.87
Ruland JCC36-12-A, 3/4" Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 2.250" OD, 1.130" Length
Download CAD File:
JS26-12-A
JS26-12-A
As low as
$27.89
$40.90
Ruland JS26-12-A, 3/4" Jaw Coupling Hub, Aluminum, Set Screw Style, 1.625" OD, 0.710" Length
Download CAD File:
JS32-12-A
JS32-12-A
As low as
$48.06
$70.48
Ruland JS32-12-A, 3/4" Jaw Coupling Hub, Aluminum, Set Screw Style, 2.000" OD, 0.820" Length
Download CAD File:
JS36-12-A
JS36-12-A
As low as
$67.78
$99.42
Ruland JS36-12-A, 3/4" Jaw Coupling Hub, Aluminum, Set Screw Style, 2.250" OD, 1.130" Length
Download CAD File:
JSC26-12-A
JSC26-12-A
As low as
$36.48
$53.51
Ruland JSC26-12-A, 3/4" Jaw Coupling Hub, Aluminum, Set Screw Style With Keyway, 1.625" OD, 0.710" Length
Download CAD File:
JSC32-12-A
JSC32-12-A
As low as
$58.50
$85.81
Ruland JSC32-12-A, 3/4" Jaw Coupling Hub, Aluminum, Set Screw Style With Keyway, 2.000" OD, 0.820" Length
Download CAD File:
JSC36-12-A
JSC36-12-A
As low as
$80.35
$117.85
Ruland JSC36-12-A, 3/4" Jaw Coupling Hub, Aluminum, Set Screw Style With Keyway, 2.250" OD, 1.130" Length
Download CAD File:
MJC41-18-A
MJC41-18-A
As low as
$34.09
$50.00
Ruland MJC41-18-A, 18mm Jaw Coupling Hub, Aluminum, Clamp Style, 41.3mm OD, 18.0mm Length
Download CAD File:
MJC51-18-A
MJC51-18-A
As low as
$55.62
$81.58
Ruland MJC51-18-A, 18mm Jaw Coupling Hub, Aluminum, Clamp Style, 50.8mm OD, 20.8mm Length
Download CAD File:
MJC57-18-A
MJC57-18-A
As low as
$74.61
$109.43
Ruland MJC57-18-A, 18mm Jaw Coupling Hub, Aluminum, Clamp Style, 57.2mm OD, 28.7mm Length
Download CAD File:
MJCC41-18-A
MJCC41-18-A
As low as
$42.65
$62.55
Ruland MJCC41-18-A, 18mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 41.3mm OD, 18.0mm Length
Download CAD File:
MJCC51-18-A
MJCC51-18-A
As low as
$66.08
$96.91
Ruland MJCC51-18-A, 18mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 50.8mm OD, 20.8mm Length
Download CAD File:
MJCC57-18-A
MJCC57-18-A
As low as
$87.18
$127.87
Ruland MJCC57-18-A, 18mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 57.2mm OD, 28.7mm Length
Download CAD File:
MJS41-18-A
MJS41-18-A
As low as
$27.89
$40.90
Ruland MJS41-18-A, 18mm Jaw Coupling Hub, Aluminum, Set Screw Style, 41.3mm OD, 18.0mm Length
Download CAD File:
MJS51-18-A
MJS51-18-A
As low as
$48.06
$70.48
Ruland MJS51-18-A, 18mm Jaw Coupling Hub, Aluminum, Set Screw Style, 50.8mm OD, 20.8mm Length
Download CAD File:
MJS57-18-A
MJS57-18-A
As low as
$67.78
$99.42
Ruland MJS57-18-A, 18mm Jaw Coupling Hub, Aluminum, Set Screw Style, 57.2mm OD, 28.7mm Length
Download CAD File:
MJSC41-18-A
MJSC41-18-A
As low as
$36.48
$53.51
Ruland MJSC41-18-A, 18mm Jaw Coupling Hub, Aluminum, Set Screw Style With Keyway, 41.3mm OD, 18.0mm Length
Download CAD File:
MJSC51-18-A
MJSC51-18-A
As low as
$58.50
$85.81
Ruland MJSC51-18-A, 18mm Jaw Coupling Hub, Aluminum, Set Screw Style With Keyway, 50.8mm OD, 20.8mm Length
Download CAD File:
MJSC57-18-A
MJSC57-18-A
As low as
$80.35
$117.85
Ruland MJSC57-18-A, 18mm Jaw Coupling Hub, Aluminum, Set Screw Style With Keyway, 57.2mm OD, 28.7mm Length
Part number
Bore (B1)
Small Bore (B2)
Length (L)
Material
Outer Diameter (OD)
Maximum Speed
JC26-12-A
0.7500 in
2.086 in
Aluminum
1.625 in (41.3 mm)
8,000 RPM
JC32-12-A
0.7500 in
2.400 in (61.0 mm)
Aluminum
2.000 in (50.8 mm)
8,000 RPM
JC36-12-A
0.7500 in
3.150 in (80.0 mm)
Aluminum
2.250 in (57.2 mm)
8,000 RPM
JCC26-12-A
0.7500 in
2.086 in
Aluminum
1.625 in (41.3 mm)
8,000 RPM
JCC32-12-A
0.7500 in
2.400 in (61.0 mm)
Aluminum
2.000 in (50.8 mm)
8,000 RPM
JCC36-12-A
0.7500 in
3.150 in (80.0 mm)
Aluminum
2.250 in (57.2 mm)
8,000 RPM
JS26-12-A
0.7500 in
2.086 in
Aluminum
1.625 in (41.3 mm)
8,000 RPM
JS32-12-A
0.7500 in
2.400 in (61.0 mm)
Aluminum
2.000 in (50.8 mm)
8,000 RPM
JS36-12-A
0.7500 in
3.150 in (80.0 mm)
Aluminum
2.250 in (57.2 mm)
8,000 RPM
JSC26-12-A
0.7500 in
2.086 in
Aluminum
1.625 in (41.3 mm)
8,000 RPM
JSC32-12-A
0.7500 in
2.400 in (61.0 mm)
Aluminum
2.000 in (50.8 mm)
8,000 RPM
JSC36-12-A
0.7500 in
3.150 in (80.0 mm)
Aluminum
2.250 in (57.2 mm)
8,000 RPM
MJC41-18-A
18 mm
2.086 in (53.0 mm)
Aluminum
1.625 in (41.3 mm)
8,000 RPM
MJC51-18-A
18 mm
2.400 in (61.0 mm)
Aluminum
2.000 in (50.8 mm)
8,000 RPM
MJC57-18-A
18 mm
3.150 in (80.0 mm)
Aluminum
2.250 in (57.2 mm)
8,000 RPM
MJCC41-18-A
18 mm
2.086 in (53.0 mm)
Aluminum
1.625 in (41.3 mm)
8,000 RPM
MJCC51-18-A
18 mm
2.400 in (61.0 mm)
Aluminum
2.000 in (50.8 mm)
8,000 RPM
MJCC57-18-A
18 mm
3.150 in (80.0 mm)
Aluminum
2.250 in (57.2 mm)
8,000 RPM
MJS41-18-A
18 mm
2.086 in (53.0 mm)
Aluminum
1.625 in (41.3 mm)
8,000 RPM
MJS51-18-A
18 mm
2.400 in (61.0 mm)
Aluminum
2.000 in (50.8 mm)
8,000 RPM
MJS57-18-A
18 mm
3.150 in (80.0 mm)
Aluminum
2.250 in (57.2 mm)
8,000 RPM
MJSC41-18-A
18 mm
2.086 in (53.0 mm)
Aluminum
1.625 in (41.3 mm)
8,000 RPM
MJSC51-18-A
18 mm
2.400 in (61.0 mm)
Aluminum
2.000 in (50.8 mm)
8,000 RPM
MJSC57-18-A
18 mm
3.150 in (80.0 mm)
Aluminum
2.250 in (57.2 mm)
8,000 RPM
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Bore (B1)
18 mm
Bore (B1)
0.7500 in
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