The store will not work correctly when cookies are disabled.
JavaScript seems to be disabled in your browser.
For the best experience on our site, be sure to turn on Javascript in your browser.
Due to Microsoft's discontinuation of updates, including security, certain functionality such as checkout and CAD may not work for you. We recommend using Google Chrome, Microsoft Edge, Firefox, or Safari to ensure full functionality.Thank you - the Ruland team
Jaw Coupling with Keyway - MJCC
Clamp style jaw coupling hubs with bores with keyways and metric dimensions. Bore sizes range from 7mm to 30mm.
Features
Zero backlash
Balanced design
Replaceable spider
RoHS2 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:
MJCC41-19-A
MJCC41-19-A
As low as
$43.50
$63.80
Ruland MJCC41-19-A, 19mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 41.3mm OD, 18.0mm Length
Download CAD File:
MJCC41-20-A
MJCC41-20-A
As low as
$43.50
$63.80
Ruland MJCC41-20-A, 20mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 41.3mm OD, 18.0mm Length
Download CAD File:
MJCC51-12-A
MJCC51-12-A
As low as
$67.40
$98.85
Ruland MJCC51-12-A, 12mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 50.8mm OD, 20.8mm Length
Download CAD File:
MJCC51-13-A
MJCC51-13-A
As low as
$67.40
$98.85
Ruland MJCC51-13-A, 13mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 50.8mm OD, 20.8mm Length
Download CAD File:
MJCC51-14-A
MJCC51-14-A
As low as
$67.40
$98.85
Ruland MJCC51-14-A, 14mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 50.8mm OD, 20.8mm Length
Download CAD File:
MJCC51-15-A
MJCC51-15-A
As low as
$67.40
$98.85
Ruland MJCC51-15-A, 15mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 50.8mm OD, 20.8mm Length
Download CAD File:
MJCC51-16-A
MJCC51-16-A
As low as
$67.40
$98.85
Ruland MJCC51-16-A, 16mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 50.8mm OD, 20.8mm Length
Download CAD File:
MJCC51-17-A
MJCC51-17-A
As low as
$67.40
$98.85
Ruland MJCC51-17-A, 17mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 50.8mm OD, 20.8mm Length
Download CAD File:
MJCC51-18-A
MJCC51-18-A
As low as
$67.40
$98.85
Ruland MJCC51-18-A, 18mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 50.8mm OD, 20.8mm Length
Download CAD File:
MJCC51-19-A
MJCC51-19-A
As low as
$67.40
$98.85
Ruland MJCC51-19-A, 19mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 50.8mm OD, 20.8mm Length
Download CAD File:
MJCC51-20-A
MJCC51-20-A
As low as
$67.40
$98.85
Ruland MJCC51-20-A, 20mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 50.8mm OD, 20.8mm Length
Download CAD File:
MJCC51-22-A
MJCC51-22-A
As low as
$67.40
$98.85
Ruland MJCC51-22-A, 22mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 50.8mm OD, 20.8mm Length
Download CAD File:
MJCC51-24-A
MJCC51-24-A
As low as
$67.40
$98.85
Ruland MJCC51-24-A, 24mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 50.8mm OD, 20.8mm Length
Download CAD File:
MJCC51-25-A
MJCC51-25-A
As low as
$67.40
$98.85
Ruland MJCC51-25-A, 25mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 50.8mm OD, 20.8mm Length
Download CAD File:
MJCC57-14-A
MJCC57-14-A
As low as
$88.93
$130.43
Ruland MJCC57-14-A, 14mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 57.2mm OD, 28.7mm Length
Download CAD File:
MJCC57-15-A
MJCC57-15-A
As low as
$88.93
$130.43
Ruland MJCC57-15-A, 15mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 57.2mm OD, 28.7mm Length
Download CAD File:
MJCC57-16-A
MJCC57-16-A
As low as
$88.93
$130.43
Ruland MJCC57-16-A, 16mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 57.2mm OD, 28.7mm Length
Download CAD File:
MJCC57-17-A
MJCC57-17-A
As low as
$88.93
$130.43
Ruland MJCC57-17-A, 17mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 57.2mm OD, 28.7mm Length
Download CAD File:
MJCC57-18-A
MJCC57-18-A
As low as
$88.93
$130.43
Ruland MJCC57-18-A, 18mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 57.2mm OD, 28.7mm Length
Download CAD File:
MJCC57-19-A
MJCC57-19-A
As low as
$88.93
$130.43
Ruland MJCC57-19-A, 19mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 57.2mm OD, 28.7mm Length
Download CAD File:
MJCC57-20-A
MJCC57-20-A
As low as
$88.93
$130.43
Ruland MJCC57-20-A, 20mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 57.2mm OD, 28.7mm Length
Download CAD File:
MJCC57-22-A
MJCC57-22-A
As low as
$88.93
$130.43
Ruland MJCC57-22-A, 22mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 57.2mm OD, 28.7mm Length
Download CAD File:
MJCC57-24-A
MJCC57-24-A
As low as
$88.93
$130.43
Ruland MJCC57-24-A, 24mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 57.2mm OD, 28.7mm Length
Download CAD File:
MJCC57-25-A
MJCC57-25-A
As low as
$88.93
$130.43
Ruland MJCC57-25-A, 25mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 57.2mm OD, 28.7mm Length
Part number
Bore (B1)
Small Bore (B2)
Length (L)
Material
Outer Diameter (OD)
Maximum Speed
MJCC41-19-A
19 mm
2.086 in (53.0 mm)
Aluminum
1.625 in (41.3 mm)
8,000 RPM
MJCC41-20-A
20 mm
2.086 in (53.0 mm)
Aluminum
1.625 in (41.3 mm)
8,000 RPM
MJCC51-12-A
12 mm
2.400 in (61.0 mm)
Aluminum
2.000 in (50.8 mm)
8,000 RPM
MJCC51-13-A
13 mm
2.400 in (61.0 mm)
Aluminum
2.000 in (50.8 mm)
8,000 RPM
MJCC51-14-A
14 mm
2.400 in (61.0 mm)
Aluminum
2.000 in (50.8 mm)
8,000 RPM
MJCC51-15-A
15 mm
2.400 in (61.0 mm)
Aluminum
2.000 in (50.8 mm)
8,000 RPM
MJCC51-16-A
16 mm
2.400 in (61.0 mm)
Aluminum
2.000 in (50.8 mm)
8,000 RPM
MJCC51-17-A
17 mm
2.400 in (61.0 mm)
Aluminum
2.000 in (50.8 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
MJCC51-19-A
19 mm
2.400 in (61.0 mm)
Aluminum
2.000 in (50.8 mm)
8,000 RPM
MJCC51-20-A
20 mm
2.400 in (61.0 mm)
Aluminum
2.000 in (50.8 mm)
8,000 RPM
MJCC51-22-A
22 mm
2.400 in (61.0 mm)
Aluminum
2.000 in (50.8 mm)
8,000 RPM
MJCC51-24-A
24 mm
2.400 in (61.0 mm)
Aluminum
2.000 in (50.8 mm)
8,000 RPM
MJCC51-25-A
25 mm
2.400 in (61.0 mm)
Aluminum
2.000 in (50.8 mm)
8,000 RPM
MJCC57-14-A
14 mm
3.150 in (80.0 mm)
Aluminum
2.250 in (57.2 mm)
8,000 RPM
MJCC57-15-A
15 mm
3.150 in (80.0 mm)
Aluminum
2.250 in (57.2 mm)
8,000 RPM
MJCC57-16-A
16 mm
3.150 in (80.0 mm)
Aluminum
2.250 in (57.2 mm)
8,000 RPM
MJCC57-17-A
17 mm
3.150 in (80.0 mm)
Aluminum
2.250 in (57.2 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
MJCC57-19-A
19 mm
3.150 in (80.0 mm)
Aluminum
2.250 in (57.2 mm)
8,000 RPM
MJCC57-20-A
20 mm
3.150 in (80.0 mm)
Aluminum
2.250 in (57.2 mm)
8,000 RPM
MJCC57-22-A
22 mm
3.150 in (80.0 mm)
Aluminum
2.250 in (57.2 mm)
8,000 RPM
MJCC57-24-A
24 mm
3.150 in (80.0 mm)
Aluminum
2.250 in (57.2 mm)
8,000 RPM
MJCC57-25-A
25 mm
3.150 in (80.0 mm)
Aluminum
2.250 in (57.2 mm)
8,000 RPM
© 2025 Ruland Manufacturing Co., Inc. All rights reserved
Top