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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:
BC32-1\"-12MM-A
BC32-1"-12MM-A
As low as
$126.47
$185.49
Ruland BC32-1"-12MM-A, 1" x 12mm Bellows Coupling, High Stiffness, Aluminum, 2.000" (50.8mm), OD 2.413" (61.3mm) Length
Download CAD File:
BC32-1\"-13MM-A
BC32-1"-13MM-A
As low as
$126.47
$185.49
Ruland BC32-1"-13MM-A, 1" x 13mm Bellows Coupling, High Stiffness, Aluminum, 2.000" (50.8mm), OD 2.413" (61.3mm) Length
Download CAD File:
BC32-1\"-14MM-A
BC32-1"-14MM-A
As low as
$126.47
$185.49
Ruland BC32-1"-14MM-A, 1" x 14mm Bellows Coupling, High Stiffness, Aluminum, 2.000" (50.8mm), OD 2.413" (61.3mm) Length
Download CAD File:
BC32-1\"-15MM-A
BC32-1"-15MM-A
As low as
$126.47
$185.49
Ruland BC32-1"-15MM-A, 1" x 15mm Bellows Coupling, High Stiffness, Aluminum, 2.000" (50.8mm), OD 2.413" (61.3mm) Length
Download CAD File:
BC32-1\"-16MM-A
BC32-1"-16MM-A
As low as
$126.47
$185.49
Ruland BC32-1"-16MM-A, 1" x 16mm Bellows Coupling, High Stiffness, Aluminum, 2.000" (50.8mm), OD 2.413" (61.3mm) Length
Download CAD File:
BC32-1\"-17MM-A
BC32-1"-17MM-A
As low as
$126.47
$185.49
Ruland BC32-1"-17MM-A, 1" x 17mm Bellows Coupling, High Stiffness, Aluminum, 2.000" (50.8mm), OD 2.413" (61.3mm) Length
Download CAD File:
BC32-1\"-18MM-A
BC32-1"-18MM-A
As low as
$126.47
$185.49
Ruland BC32-1"-18MM-A, 1" x 18mm Bellows Coupling, High Stiffness, Aluminum, 2.000" (50.8mm), OD 2.413" (61.3mm) 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:
BC32-1\"-20MM-A
BC32-1"-20MM-A
As low as
$126.47
$185.49
Ruland BC32-1"-20MM-A, 1" x 20mm Bellows Coupling, High Stiffness, Aluminum, 2.000" (50.8mm), OD 2.413" (61.3mm) Length
Download CAD File:
BC32-1\"-22MM-A
BC32-1"-22MM-A
As low as
$126.47
$185.49
Ruland BC32-1"-22MM-A, 1" x 22mm Bellows Coupling, High Stiffness, Aluminum, 2.000" (50.8mm), OD 2.413" (61.3mm) Length
Download CAD File:
BC32-1\"-24MM-A
BC32-1"-24MM-A
As low as
$126.47
$185.49
Ruland BC32-1"-24MM-A, 1" x 24mm Bellows Coupling, High Stiffness, Aluminum, 2.000" (50.8mm), OD 2.413" (61.3mm) Length
Download CAD File:
BC32-1\"-25MM-A
BC32-1"-25MM-A
As low as
$126.47
$185.49
Ruland BC32-1"-25MM-A, 1" x 25mm Bellows Coupling, High Stiffness, Aluminum, 2.000" (50.8mm), OD 2.413" (61.3mm) Length
Download CAD File:
BC32-1/2\"-12MM-A
BC32-1/2"-12MM-A
As low as
$126.47
$185.49
Ruland BC32-1/2"-12MM-A, 1/2" x 12mm Bellows Coupling, High Stiffness, Aluminum, 2.000" (50.8mm), OD 2.413" (61.3mm) Length
Download CAD File:
BC32-13MM-1/2\"-A
BC32-13MM-1/2"-A
As low as
$126.47
$185.49
Ruland BC32-13MM-1/2"-A, 13mm x 1/2" Bellows Coupling, High Stiffness, Aluminum, 2.000" (50.8mm), OD 2.413" (61.3mm) Length
Download CAD File:
BC32-14MM-1/2\"-A
BC32-14MM-1/2"-A
As low as
$126.47
$185.49
Ruland BC32-14MM-1/2"-A, 14mm x 1/2" Bellows Coupling, High Stiffness, Aluminum, 2.000" (50.8mm), OD 2.413" (61.3mm) Length
Download CAD File:
BC32-15MM-1/2\"-A
BC32-15MM-1/2"-A
As low as
$126.47
$185.49
Ruland BC32-15MM-1/2"-A, 15mm x 1/2" Bellows Coupling, High Stiffness, Aluminum, 2.000" (50.8mm), OD 2.413" (61.3mm) Length
Download CAD File:
BC32-16MM-1/2\"-A
BC32-16MM-1/2"-A
As low as
$126.47
$185.49
Ruland BC32-16MM-1/2"-A, 16mm x 1/2" Bellows Coupling, High Stiffness, Aluminum, 2.000" (50.8mm), OD 2.413" (61.3mm) Length
Download CAD File:
BC32-16MM-5/8\"-A
BC32-16MM-5/8"-A
As low as
$126.47
$185.49
Ruland BC32-16MM-5/8"-A, 16mm x 5/8" Bellows Coupling, High Stiffness, Aluminum, 2.000" (50.8mm), OD 2.413" (61.3mm) Length
Download CAD File:
BC32-17MM-1/2\"-A
BC32-17MM-1/2"-A
As low as
$126.47
$185.49
Ruland BC32-17MM-1/2"-A, 17mm x 1/2" Bellows Coupling, High Stiffness, Aluminum, 2.000" (50.8mm), OD 2.413" (61.3mm) Length
Download CAD File:
BC32-17MM-5/8\"-A
BC32-17MM-5/8"-A
As low as
$126.47
$185.49
Ruland BC32-17MM-5/8"-A, 17mm x 5/8" Bellows Coupling, High Stiffness, Aluminum, 2.000" (50.8mm), OD 2.413" (61.3mm) Length
Download CAD File:
BC32-18MM-1/2\"-A
BC32-18MM-1/2"-A
As low as
$126.47
$185.49
Ruland BC32-18MM-1/2"-A, 18mm x 1/2" Bellows Coupling, High Stiffness, Aluminum, 2.000" (50.8mm), OD 2.413" (61.3mm) Length
Download CAD File:
BC32-18MM-5/8\"-A
BC32-18MM-5/8"-A
As low as
$126.47
$185.49
Ruland BC32-18MM-5/8"-A, 18mm x 5/8" Bellows Coupling, High Stiffness, Aluminum, 2.000" (50.8mm), OD 2.413" (61.3mm) Length
Download CAD File:
BC32-19MM-1/2\"-A
BC32-19MM-1/2"-A
As low as
$126.47
$185.49
Ruland BC32-19MM-1/2"-A, 19mm x 1/2" Bellows Coupling, High Stiffness, Aluminum, 2.000" (50.8mm), OD 2.413" (61.3mm) Length
Download CAD File:
BC32-19MM-5/8\"-A
BC32-19MM-5/8"-A
As low as
$126.47
$185.49
Ruland BC32-19MM-5/8"-A, 19mm x 5/8" Bellows Coupling, High Stiffness, Aluminum, 2.000" (50.8mm), OD 2.413" (61.3mm) Length
Part number
Bore (B1)
Small Bore (B2)
Length (L)
Material
Outer Diameter (OD)
Maximum Speed
BC32-1"-12MM-A
1.0000 in
12 mm
2.413 in (61.3 mm)
Aluminum
2.000 in (50.8 mm)
10,000 RPM
BC32-1"-13MM-A
1.0000 in
13 mm
2.413 in (61.3 mm)
Aluminum
2.000 in (50.8 mm)
10,000 RPM
BC32-1"-14MM-A
1.0000 in
14 mm
2.413 in (61.3 mm)
Aluminum
2.000 in (50.8 mm)
10,000 RPM
BC32-1"-15MM-A
1.0000 in
15 mm
2.413 in (61.3 mm)
Aluminum
2.000 in (50.8 mm)
10,000 RPM
BC32-1"-16MM-A
1.0000 in
16 mm
2.413 in (61.3 mm)
Aluminum
2.000 in (50.8 mm)
10,000 RPM
BC32-1"-17MM-A
1.0000 in
17 mm
2.413 in (61.3 mm)
Aluminum
2.000 in (50.8 mm)
10,000 RPM
BC32-1"-18MM-A
1.0000 in
18 mm
2.413 in (61.3 mm)
Aluminum
2.000 in (50.8 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
BC32-1"-20MM-A
1.0000 in
20 mm
2.413 in (61.3 mm)
Aluminum
2.000 in (50.8 mm)
10,000 RPM
BC32-1"-22MM-A
1.0000 in
22 mm
2.413 in (61.3 mm)
Aluminum
2.000 in (50.8 mm)
10,000 RPM
BC32-1"-24MM-A
1.0000 in
24 mm
2.413 in (61.3 mm)
Aluminum
2.000 in (50.8 mm)
10,000 RPM
BC32-1"-25MM-A
1.0000 in
25 mm
2.413 in (61.3 mm)
Aluminum
2.000 in (50.8 mm)
10,000 RPM
BC32-1/2"-12MM-A
0.5000 in
12 mm
2.413 in (61.3 mm)
Aluminum
2.000 in (50.8 mm)
10,000 RPM
BC32-13MM-1/2"-A
13 mm
0.5000 in
2.413 in (61.3 mm)
Aluminum
2.000 in (50.8 mm)
10,000 RPM
BC32-14MM-1/2"-A
14 mm
0.5000 in
2.413 in (61.3 mm)
Aluminum
2.000 in (50.8 mm)
10,000 RPM
BC32-15MM-1/2"-A
15 mm
0.5000 in
2.413 in (61.3 mm)
Aluminum
2.000 in (50.8 mm)
10,000 RPM
BC32-16MM-1/2"-A
16 mm
0.5000 in
2.413 in (61.3 mm)
Aluminum
2.000 in (50.8 mm)
10,000 RPM
BC32-16MM-5/8"-A
16 mm
0.6250 in
2.413 in (61.3 mm)
Aluminum
2.000 in (50.8 mm)
10,000 RPM
BC32-17MM-1/2"-A
17 mm
0.5000 in
2.413 in (61.3 mm)
Aluminum
2.000 in (50.8 mm)
10,000 RPM
BC32-17MM-5/8"-A
17 mm
0.6250 in
2.413 in (61.3 mm)
Aluminum
2.000 in (50.8 mm)
10,000 RPM
BC32-18MM-1/2"-A
18 mm
0.5000 in
2.413 in (61.3 mm)
Aluminum
2.000 in (50.8 mm)
10,000 RPM
BC32-18MM-5/8"-A
18 mm
0.6250 in
2.413 in (61.3 mm)
Aluminum
2.000 in (50.8 mm)
10,000 RPM
BC32-19MM-1/2"-A
19 mm
0.5000 in
2.413 in (61.3 mm)
Aluminum
2.000 in (50.8 mm)
10,000 RPM
BC32-19MM-5/8"-A
19 mm
0.6250 in
2.413 in (61.3 mm)
Aluminum
2.000 in (50.8 mm)
10,000 RPM
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Static Torque
400 lb-in (45.2 Nm)
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