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:
MJCC25-10-A
MJCC25-10-A
As low as
$25.17
$36.92
Ruland MJCC25-10-A, 10mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 25.4mm OD, 11.9mm Length
Download CAD File:
MJCC25-11-A
MJCC25-11-A
As low as
$25.17
$36.92
Ruland MJCC25-11-A, 11mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 25.4mm OD, 11.9mm Length
Download CAD File:
MJCC25-12-A
MJCC25-12-A
As low as
$25.17
$36.92
Ruland MJCC25-12-A, 12mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 25.4mm OD, 11.9mm Length
Download CAD File:
MJCC25-7-A
MJCC25-7-A
As low as
$25.17
$36.92
Ruland MJCC25-7-A, 7mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 25.4mm OD, 11.9mm Length
Download CAD File:
MJCC25-8-A
MJCC25-8-A
As low as
$25.17
$36.92
Ruland MJCC25-8-A, 8mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 25.4mm OD, 11.9mm Length
Download CAD File:
MJCC25-9-A
MJCC25-9-A
As low as
$25.17
$36.92
Ruland MJCC25-9-A, 9mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 25.4mm OD, 11.9mm Length
Download CAD File:
MJCC33-10-A
MJCC33-10-A
As low as
$34.74
$50.95
Ruland MJCC33-10-A, 10mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 33.3mm OD, 15.0mm Length
Download CAD File:
MJCC33-11-A
MJCC33-11-A
As low as
$34.74
$50.95
Ruland MJCC33-11-A, 11mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 33.3mm OD, 15.0mm Length
Download CAD File:
MJCC33-12-A
MJCC33-12-A
As low as
$34.74
$50.95
Ruland MJCC33-12-A, 12mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 33.3mm OD, 15.0mm Length
Download CAD File:
MJCC33-13-A
MJCC33-13-A
As low as
$34.74
$50.95
Ruland MJCC33-13-A, 13mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 33.3mm OD, 15.0mm Length
Download CAD File:
MJCC33-14-A
MJCC33-14-A
As low as
$34.74
$50.95
Ruland MJCC33-14-A, 14mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 33.3mm OD, 15.0mm Length
Download CAD File:
MJCC33-15-A
MJCC33-15-A
As low as
$34.74
$50.95
Ruland MJCC33-15-A, 15mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 33.3mm OD, 15.0mm Length
Download CAD File:
MJCC33-16-A
MJCC33-16-A
As low as
$34.74
$50.95
Ruland MJCC33-16-A, 16mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 33.3mm OD, 15.0mm Length
Download CAD File:
MJCC33-8-A
MJCC33-8-A
As low as
$34.74
$50.95
Ruland MJCC33-8-A, 8mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 33.3mm OD, 15.0mm Length
Download CAD File:
MJCC33-9-A
MJCC33-9-A
As low as
$34.74
$50.95
Ruland MJCC33-9-A, 9mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 33.3mm OD, 15.0mm Length
Download CAD File:
MJCC41-10-A
MJCC41-10-A
As low as
$43.50
$63.80
Ruland MJCC41-10-A, 10mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 41.3mm OD, 18.0mm Length
Download CAD File:
MJCC41-11-A
MJCC41-11-A
As low as
$43.50
$63.80
Ruland MJCC41-11-A, 11mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 41.3mm OD, 18.0mm Length
Download CAD File:
MJCC41-12-A
MJCC41-12-A
As low as
$43.50
$63.80
Ruland MJCC41-12-A, 12mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 41.3mm OD, 18.0mm Length
Download CAD File:
MJCC41-13-A
MJCC41-13-A
As low as
$43.50
$63.80
Ruland MJCC41-13-A, 13mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 41.3mm OD, 18.0mm Length
Download CAD File:
MJCC41-14-A
MJCC41-14-A
As low as
$43.50
$63.80
Ruland MJCC41-14-A, 14mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 41.3mm OD, 18.0mm Length
Download CAD File:
MJCC41-15-A
MJCC41-15-A
As low as
$43.50
$63.80
Ruland MJCC41-15-A, 15mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 41.3mm OD, 18.0mm Length
Download CAD File:
MJCC41-16-A
MJCC41-16-A
As low as
$43.50
$63.80
Ruland MJCC41-16-A, 16mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 41.3mm OD, 18.0mm Length
Download CAD File:
MJCC41-17-A
MJCC41-17-A
As low as
$43.50
$63.80
Ruland MJCC41-17-A, 17mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 41.3mm OD, 18.0mm Length
Download CAD File:
MJCC41-18-A
MJCC41-18-A
As low as
$43.50
$63.80
Ruland MJCC41-18-A, 18mm Jaw Coupling Hub, Aluminum, Clamp Style With Keyway, 41.3mm OD, 18.0mm Length
Part number
Bore (B1)
Small Bore (B2)
Length (L)
Material
Outer Diameter (OD)
Maximum Speed
MJCC25-10-A
10 mm
1.390 in (35.3 mm)
Aluminum
1.000 in (25.4 mm)
8,000 RPM
MJCC25-11-A
11 mm
1.390 in (35.3 mm)
Aluminum
1.000 in (25.4 mm)
8,000 RPM
MJCC25-12-A
12 mm
1.390 in (35.3 mm)
Aluminum
1.000 in (25.4 mm)
8,000 RPM
MJCC25-7-A
7 mm
1.390 in (35.3 mm)
Aluminum
1.000 in (25.4 mm)
8,000 RPM
MJCC25-8-A
8 mm
1.390 in (35.3 mm)
Aluminum
1.000 in (25.4 mm)
8,000 RPM
MJCC25-9-A
9 mm
1.390 in (35.3 mm)
Aluminum
1.000 in (25.4 mm)
8,000 RPM
MJCC33-10-A
10 mm
1.750 in (44.5 mm)
Aluminum
1.313 in (33.3 mm)
8,000 RPM
MJCC33-11-A
11 mm
1.750 in (44.5 mm)
Aluminum
1.313 in (33.3 mm)
8,000 RPM
MJCC33-12-A
12 mm
1.750 in (44.5 mm)
Aluminum
1.313 in (33.3 mm)
8,000 RPM
MJCC33-13-A
13 mm
1.750 in (44.5 mm)
Aluminum
1.313 in (33.3 mm)
8,000 RPM
MJCC33-14-A
14 mm
1.750 in (44.5 mm)
Aluminum
1.313 in (33.3 mm)
8,000 RPM
MJCC33-15-A
15 mm
1.750 in (44.5 mm)
Aluminum
1.313 in (33.3 mm)
8,000 RPM
MJCC33-16-A
16 mm
1.750 in (44.5 mm)
Aluminum
1.313 in (33.3 mm)
8,000 RPM
MJCC33-8-A
8 mm
1.750 in (44.5 mm)
Aluminum
1.313 in (33.3 mm)
8,000 RPM
MJCC33-9-A
9 mm
1.750 in (44.5 mm)
Aluminum
1.313 in (33.3 mm)
8,000 RPM
MJCC41-10-A
10 mm
2.086 in (53.0 mm)
Aluminum
1.625 in (41.3 mm)
8,000 RPM
MJCC41-11-A
11 mm
2.086 in (53.0 mm)
Aluminum
1.625 in (41.3 mm)
8,000 RPM
MJCC41-12-A
12 mm
2.086 in (53.0 mm)
Aluminum
1.625 in (41.3 mm)
8,000 RPM
MJCC41-13-A
13 mm
2.086 in (53.0 mm)
Aluminum
1.625 in (41.3 mm)
8,000 RPM
MJCC41-14-A
14 mm
2.086 in (53.0 mm)
Aluminum
1.625 in (41.3 mm)
8,000 RPM
MJCC41-15-A
15 mm
2.086 in (53.0 mm)
Aluminum
1.625 in (41.3 mm)
8,000 RPM
MJCC41-16-A
16 mm
2.086 in (53.0 mm)
Aluminum
1.625 in (41.3 mm)
8,000 RPM
MJCC41-17-A
17 mm
2.086 in (53.0 mm)
Aluminum
1.625 in (41.3 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
© 2025 Ruland Manufacturing Co., Inc. All rights reserved
Top