The store will not work correctly in the case 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
Bellows Couplings for Motors
Bellows couplings are zero-backlash and constructed of two anodized aluminum hubs and a stainless steel bellows that serves as the flexible element. This design results in a low inertia zero-backlash coupling that is a good choice for motors coupled to ball screw driven actuators in precision applications. The thin walls of the bellows allow the coupling to flex under misalignment conditions and remain rigid under torsional loads. Bellows couplings have the highest size-for-size torque and torsional stiffness of all Ruland flexible couplings and are preferred in applications where the highest level of accuracy and responsiveness is required.
Ruland bellows coupling have a balanced design for reduced vibration at speeds up to 10,000 RPM. Bore sizes are available from 1/8” to 1” and 3mm to 25mm and hubs are manufactured in clamp and set screw styles with and without keyways.
Products
Download CAD File:
BC26-3/4\"-19MM-A
BC26-3/4"-19MM-A
As low as
$105.39
$154.57
Ruland BC26-3/4"-19MM-A, 3/4" x 19mm Bellows Coupling, High Stiffness, Aluminum, 1.625" (41.3mm), OD 2.035" (51.7mm) Length
Download CAD File:
BC32-1\"-19MM-A
BC32-1"-19MM-A
As low as
$126.47
$185.49
Ruland BC32-1"-19MM-A, 1" x 19mm Bellows Coupling, High Stiffness, Aluminum, 2.000" (50.8mm), OD 2.413" (61.3mm) Length
Download CAD File:
BC32-3/4\"-19MM-A
BC32-3/4"-19MM-A
As low as
$126.47
$185.49
Ruland BC32-3/4"-19MM-A, 3/4" x 19mm Bellows Coupling, High Stiffness, Aluminum, 2.000" (50.8mm), OD 2.413" (61.3mm) Length
Download CAD File:
BC32-7/8\"-19MM-A
BC32-7/8"-19MM-A
As low as
$126.47
$185.49
Ruland BC32-7/8"-19MM-A, 7/8" x 19mm Bellows Coupling, High Stiffness, Aluminum, 2.000" (50.8mm), OD 2.413" (61.3mm) Length
Download CAD File:
BC36-1 1/4\"-19MM-A
BC36-1 1/4"-19MM-A
As low as
$172.38
$252.82
Ruland BC36-1 1/4"-19MM-A, 1 1/4" x 19mm Bellows Coupling, High Stiffness, Aluminum, 2.250" (57.2mm), OD 3.235" (82.2mm) Length
Download CAD File:
BC36-1 1/8\"-19MM-A
BC36-1 1/8"-19MM-A
As low as
$172.38
$252.82
Ruland BC36-1 1/8"-19MM-A, 1 1/8" x 19mm Bellows Coupling, High Stiffness, Aluminum, 2.250" (57.2mm), OD 3.235" (82.2mm) Length
Download CAD File:
BC36-1\"-19MM-A
BC36-1"-19MM-A
As low as
$172.38
$252.82
Ruland BC36-1"-19MM-A, 1" x 19mm Bellows Coupling, High Stiffness, Aluminum, 2.250" (57.2mm), OD 3.235" (82.2mm) Length
Download CAD File:
BC36-3/4\"-19MM-A
BC36-3/4"-19MM-A
As low as
$172.38
$252.82
Ruland BC36-3/4"-19MM-A, 3/4" x 19mm Bellows Coupling, High Stiffness, Aluminum, 2.250" (57.2mm), OD 3.235" (82.2mm) Length
Download CAD File:
BC36-7/8\"-19MM-A
BC36-7/8"-19MM-A
As low as
$172.38
$252.82
Ruland BC36-7/8"-19MM-A, 7/8" x 19mm Bellows Coupling, High Stiffness, Aluminum, 2.250" (57.2mm), OD 3.235" (82.2mm) Length
Download CAD File:
BCK26-3/4\"-19MM-A
BCK26-3/4"-19MM-A
As low as
$135.16
$198.24
Ruland BCK26-3/4"-19MM-A, 3/4" x 19mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 1.625" (41.3mm), OD 2.035" (51.7mm) Length
Download CAD File:
BCK32-1\"-19MM-A
BCK32-1"-19MM-A
As low as
$162.57
$238.43
Ruland BCK32-1"-19MM-A, 1" x 19mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 2.000" (50.8mm), OD 2.413" (61.3mm) Length
Download CAD File:
BCK32-3/4\"-19MM-A
BCK32-3/4"-19MM-A
As low as
$162.57
$238.43
Ruland BCK32-3/4"-19MM-A, 3/4" x 19mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 2.000" (50.8mm), OD 2.413" (61.3mm) Length
Download CAD File:
BCK32-7/8\"-19MM-A
BCK32-7/8"-19MM-A
As low as
$162.57
$238.43
Ruland BCK32-7/8"-19MM-A, 7/8" x 19mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 2.000" (50.8mm), OD 2.413" (61.3mm) Length
Download CAD File:
BCK36-1 1/4\"-19MM-A
BCK36-1 1/4"-19MM-A
As low as
$199.99
$293.32
Ruland BCK36-1 1/4"-19MM-A, 1 1/4" x 19mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 2.250" (57.2mm), OD 3.235" (82.2mm) Length
Download CAD File:
BCK36-1 1/8\"-19MM-A
BCK36-1 1/8"-19MM-A
As low as
$199.99
$293.32
Ruland BCK36-1 1/8"-19MM-A, 1 1/8" x 19mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 2.250" (57.2mm), OD 3.235" (82.2mm) Length
Download CAD File:
BCK36-1\"-19MM-A
BCK36-1"-19MM-A
As low as
$199.99
$293.32
Ruland BCK36-1"-19MM-A, 1" x 19mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 2.250" (57.2mm), OD 3.235" (82.2mm) Length
Download CAD File:
BCK36-3/4\"-19MM-A
BCK36-3/4"-19MM-A
As low as
$199.99
$293.32
Ruland BCK36-3/4"-19MM-A, 3/4" x 19mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 2.250" (57.2mm), OD 3.235" (82.2mm) Length
Download CAD File:
BCK36-7/8\"-19MM-A
BCK36-7/8"-19MM-A
As low as
$199.99
$293.32
Ruland BCK36-7/8"-19MM-A, 7/8" x 19mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 2.250" (57.2mm), OD 3.235" (82.2mm) Length
Download CAD File:
MBC41-19-19-A
MBC41-19-19-A
As low as
$105.39
$154.57
Ruland MBC41-19-19-A, 19mm x 19mm Bellows Coupling, High Stiffness, Aluminum, 41.3mm, OD 51.7mm Length
Download CAD File:
MBC41-20-19-A
MBC41-20-19-A
As low as
$105.39
$154.57
Ruland MBC41-20-19-A, 20mm x 19mm Bellows Coupling, High Stiffness, Aluminum, 41.3mm, OD 51.7mm Length
Download CAD File:
MBC51-19-19-A
MBC51-19-19-A
As low as
$126.47
$185.49
Ruland MBC51-19-19-A, 19mm x 19mm Bellows Coupling, High Stiffness, Aluminum, 50.8mm, OD 61.3mm Length
Download CAD File:
MBC51-20-19-A
MBC51-20-19-A
As low as
$126.47
$185.49
Ruland MBC51-20-19-A, 20mm x 19mm Bellows Coupling, High Stiffness, Aluminum, 50.8mm, OD 61.3mm Length
Download CAD File:
MBC51-21-19-A
MBC51-21-19-A
As low as
$126.47
$185.49
Ruland MBC51-21-19-A, 21mm x 19mm Bellows Coupling, High Stiffness, Aluminum, 50.8mm, OD 61.3mm Length
Download CAD File:
MBC51-22-19-A
MBC51-22-19-A
As low as
$126.47
$185.49
Ruland MBC51-22-19-A, 22mm x 19mm Bellows Coupling, High Stiffness, Aluminum, 50.8mm, OD 61.3mm Length
Part number
Bore (B1)
Small Bore (B2)
Length (L)
Material
Outer Diameter (OD)
Maximum Speed
BC26-3/4"-19MM-A
0.7500 in
19 mm
2.035 in (51.7 mm)
Aluminum
1.625 in (41.3 mm)
10,000 RPM
BC32-1"-19MM-A
1.0000 in
19 mm
2.413 in (61.3 mm)
Aluminum
2.000 in (50.8 mm)
10,000 RPM
BC32-3/4"-19MM-A
0.7500 in
19 mm
2.413 in (61.3 mm)
Aluminum
2.000 in (50.8 mm)
10,000 RPM
BC32-7/8"-19MM-A
0.8750 in
19 mm
2.413 in (61.3 mm)
Aluminum
2.000 in (50.8 mm)
10,000 RPM
BC36-1 1/4"-19MM-A
1.2500 in
19 mm
3.235 in (82.2 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
BC36-1 1/8"-19MM-A
1.1250 in
19 mm
3.235 in (82.2 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
BC36-1"-19MM-A
1.0000 in
19 mm
3.235 in (82.2 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
BC36-3/4"-19MM-A
0.7500 in
19 mm
3.235 in (82.2 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
BC36-7/8"-19MM-A
0.8750 in
19 mm
3.235 in (82.2 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
BCK26-3/4"-19MM-A
0.7500 in
19 mm
2.035 in (51.7 mm)
Aluminum
1.625 in (41.3 mm)
10,000 RPM
BCK32-1"-19MM-A
1.0000 in
19 mm
2.413 in (61.3 mm)
Aluminum
2.000 in (50.8 mm)
10,000 RPM
BCK32-3/4"-19MM-A
0.7500 in
19 mm
2.413 in (61.3 mm)
Aluminum
2.000 in (50.8 mm)
10,000 RPM
BCK32-7/8"-19MM-A
0.8750 in
19 mm
2.413 in (61.3 mm)
Aluminum
2.000 in (50.8 mm)
10,000 RPM
BCK36-1 1/4"-19MM-A
1.2500 in
19 mm
3.235 in (82.2 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
BCK36-1 1/8"-19MM-A
1.1250 in
19 mm
3.235 in (82.2 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
BCK36-1"-19MM-A
1.0000 in
19 mm
3.235 in (82.2 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
BCK36-3/4"-19MM-A
0.7500 in
19 mm
3.235 in (82.2 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
BCK36-7/8"-19MM-A
0.8750 in
19 mm
3.235 in (82.2 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
MBC41-19-19-A
19 mm
19 mm
51.7 mm
Aluminum
41.3 mm
10,000 RPM
MBC41-20-19-A
20 mm
19 mm
51.7 mm
Aluminum
41.3 mm
10,000 RPM
MBC51-19-19-A
19 mm
19 mm
61.3 mm
Aluminum
50.8 mm
10,000 RPM
MBC51-20-19-A
20 mm
19 mm
61.3 mm
Aluminum
50.8 mm
10,000 RPM
MBC51-21-19-A
21 mm
19 mm
61.3 mm
Aluminum
50.8 mm
10,000 RPM
MBC51-22-19-A
22 mm
19 mm
61.3 mm
Aluminum
50.8 mm
10,000 RPM
Filter
Now Shopping by
Small Bore (B2)
19 mm
Shopping Options
© 2024 Ruland Manufacturing Co., Inc. All rights reserved
Top