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Bellows Couplings for Encoders
Ruland bellows couplings are comprised of two anodized aluminum and a stainless steel bellows creating a low inertia zero-backlash coupling that is well suited for speeds up to 10,000 RPM. The thin wall of the bellows allows the coupling to remain flexible under misalignment conditions while maintaining rigidity under torsional loads. They are the most torsionally stiff flexible coupling Ruland offers making them a good fit for encoders that require the highest level of resolution. When designers select a bellows coupling for an encoder they must control for misalignment. While bellows couplings to accommodate all forms of misalignment, they are not as flexible as beam or controlflex types. Bellows couplings are manufactured in our Marlborough, Massachusetts factory with bore sizes ranging from 1/8” to 1” or 3mm to 25mm.
Products
Download CAD File:
BC16-1/2\"-10MM-A
BC16-1/2"-10MM-A
As low as
$87.82
$128.81
Ruland BC16-1/2"-10MM-A, 1/2" x 10mm Bellows Coupling, High Stiffness, Aluminum, 1.000" (25.4mm), OD 1.345" (34.2mm) Length
Download CAD File:
BC21-1/2\"-10MM-A
BC21-1/2"-10MM-A
As low as
$94.83
$139.09
Ruland BC21-1/2"-10MM-A, 1/2" x 10mm Bellows Coupling, High Stiffness, Aluminum, 1.313" (33.3mm), OD 1.700" (43.2mm) Length
Download CAD File:
BC21-10-10-A
BC21-10-10-A
As low as
$94.83
$139.09
Ruland BC21-10-10-A, 5/8" x 5/8" Bellows Coupling, High Stiffness, Aluminum, 1.313", OD 1.700" Length
Download CAD File:
BC21-16MM-5/8\"-A
BC21-16MM-5/8"-A
As low as
$94.83
$139.09
Ruland BC21-16MM-5/8"-A, 16mm x 5/8" Bellows Coupling, High Stiffness, Aluminum, 1.313" (33.3mm), OD 1.700" (43.2mm) Length
Download CAD File:
BC21-5/8\"-10MM-A
BC21-5/8"-10MM-A
As low as
$94.83
$139.09
Ruland BC21-5/8"-10MM-A, 5/8" x 10mm Bellows Coupling, High Stiffness, Aluminum, 1.313" (33.3mm), OD 1.700" (43.2mm) Length
Download CAD File:
BC26-1/2\"-10MM-A
BC26-1/2"-10MM-A
As low as
$105.39
$154.57
Ruland BC26-1/2"-10MM-A, 1/2" x 10mm Bellows Coupling, High Stiffness, Aluminum, 1.625" (41.3mm), OD 2.035" (51.7mm) Length
Download CAD File:
BC26-10-10-A
BC26-10-10-A
As low as
$105.39
$154.57
Ruland BC26-10-10-A, 5/8" x 5/8" Bellows Coupling, High Stiffness, Aluminum, 1.625", OD 2.035" Length
Download CAD File:
BC26-12-10-A
BC26-12-10-A
As low as
$105.39
$154.57
Ruland BC26-12-10-A, 3/4" x 5/8" Bellows Coupling, High Stiffness, Aluminum, 1.625", OD 2.035" Length
Download CAD File:
BC26-16MM-5/8\"-A
BC26-16MM-5/8"-A
As low as
$105.39
$154.57
Ruland BC26-16MM-5/8"-A, 16mm x 5/8" Bellows Coupling, High Stiffness, Aluminum, 1.625" (41.3mm), OD 2.035" (51.7mm) Length
Download CAD File:
BC26-17MM-5/8\"-A
BC26-17MM-5/8"-A
As low as
$105.39
$154.57
Ruland BC26-17MM-5/8"-A, 17mm x 5/8" Bellows Coupling, High Stiffness, Aluminum, 1.625" (41.3mm), OD 2.035" (51.7mm) Length
Download CAD File:
BC26-18MM-5/8\"-A
BC26-18MM-5/8"-A
As low as
$105.39
$154.57
Ruland BC26-18MM-5/8"-A, 18mm x 5/8" Bellows Coupling, High Stiffness, Aluminum, 1.625" (41.3mm), OD 2.035" (51.7mm) Length
Download CAD File:
BC26-19MM-5/8\"-A
BC26-19MM-5/8"-A
As low as
$105.39
$154.57
Ruland BC26-19MM-5/8"-A, 19mm x 5/8" Bellows Coupling, High Stiffness, Aluminum, 1.625" (41.3mm), OD 2.035" (51.7mm) Length
Download CAD File:
BC26-20MM-5/8\"-A
BC26-20MM-5/8"-A
As low as
$105.39
$154.57
Ruland BC26-20MM-5/8"-A, 20mm x 5/8" Bellows Coupling, High Stiffness, Aluminum, 1.625" (41.3mm), OD 2.035" (51.7mm) Length
Download CAD File:
BC26-3/4\"-10MM-A
BC26-3/4"-10MM-A
As low as
$105.39
$154.57
Ruland BC26-3/4"-10MM-A, 3/4" x 10mm Bellows Coupling, High Stiffness, Aluminum, 1.625" (41.3mm), OD 2.035" (51.7mm) Length
Download CAD File:
BC26-5/8\"-10MM-A
BC26-5/8"-10MM-A
As low as
$105.39
$154.57
Ruland BC26-5/8"-10MM-A, 5/8" x 10mm Bellows Coupling, High Stiffness, Aluminum, 1.625" (41.3mm), OD 2.035" (51.7mm) Length
Download CAD File:
BC32-10-10-A
BC32-10-10-A
As low as
$126.47
$185.49
Ruland BC32-10-10-A, 5/8" x 5/8" Bellows Coupling, High Stiffness, Aluminum, 2.000", OD 2.413" Length
Download CAD File:
BC32-12-10-A
BC32-12-10-A
As low as
$126.47
$185.49
Ruland BC32-12-10-A, 3/4" x 5/8" Bellows Coupling, High Stiffness, Aluminum, 2.000", OD 2.413" Length
Download CAD File:
BC32-14-10-A
BC32-14-10-A
As low as
$126.47
$185.49
Ruland BC32-14-10-A, 7/8" x 5/8" Bellows Coupling, High Stiffness, Aluminum, 2.000", OD 2.413" Length
Download CAD File:
BC32-16-10-A
BC32-16-10-A
As low as
$126.47
$185.49
Ruland BC32-16-10-A, 1" x 5/8" Bellows Coupling, High Stiffness, Aluminum, 2.000", OD 2.413" 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-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-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-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
Download CAD File:
BC32-20MM-5/8\"-A
BC32-20MM-5/8"-A
As low as
$126.47
$185.49
Ruland BC32-20MM-5/8"-A, 20mm 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
BC16-1/2"-10MM-A
0.5000 in
10 mm
1.345 in (34.2 mm)
Aluminum
1.000 in (25.4 mm)
10,000 RPM
BC21-1/2"-10MM-A
0.5000 in
10 mm
1.700 in (43.2 mm)
Aluminum
1.313 in (33.3 mm)
10,000 RPM
BC21-10-10-A
0.6250 in
0.6250 in
1.700 in
Aluminum
1.313 in
10,000 RPM
BC21-16MM-5/8"-A
16 mm
0.6250 in
1.700 in (43.2 mm)
Aluminum
1.313 in (33.3 mm)
10,000 RPM
BC21-5/8"-10MM-A
0.6250 in
10 mm
1.700 in (43.2 mm)
Aluminum
1.313 in (33.3 mm)
10,000 RPM
BC26-1/2"-10MM-A
0.5000 in
10 mm
2.035 in (51.7 mm)
Aluminum
1.625 in (41.3 mm)
10,000 RPM
BC26-10-10-A
0.6250 in
0.6250 in
2.035 in
Aluminum
1.625 in
10,000 RPM
BC26-12-10-A
0.7500 in
0.6250 in
2.035 in
Aluminum
1.625 in
10,000 RPM
BC26-16MM-5/8"-A
16 mm
0.6250 in
2.035 in (51.7 mm)
Aluminum
1.625 in (41.3 mm)
10,000 RPM
BC26-17MM-5/8"-A
17 mm
0.6250 in
2.035 in (51.7 mm)
Aluminum
1.625 in (41.3 mm)
10,000 RPM
BC26-18MM-5/8"-A
18 mm
0.6250 in
2.035 in (51.7 mm)
Aluminum
1.625 in (41.3 mm)
10,000 RPM
BC26-19MM-5/8"-A
19 mm
0.6250 in
2.035 in (51.7 mm)
Aluminum
1.625 in (41.3 mm)
10,000 RPM
BC26-20MM-5/8"-A
20 mm
0.6250 in
2.035 in (51.7 mm)
Aluminum
1.625 in (41.3 mm)
10,000 RPM
BC26-3/4"-10MM-A
0.7500 in
10 mm
2.035 in (51.7 mm)
Aluminum
1.625 in (41.3 mm)
10,000 RPM
BC26-5/8"-10MM-A
0.6250 in
10 mm
2.035 in (51.7 mm)
Aluminum
1.625 in (41.3 mm)
10,000 RPM
BC32-10-10-A
0.6250 in
0.6250 in
2.413 in
Aluminum
2.000 in
10,000 RPM
BC32-12-10-A
0.7500 in
0.6250 in
2.413 in
Aluminum
2.000 in
10,000 RPM
BC32-14-10-A
0.8750 in
0.6250 in
2.413 in
Aluminum
2.000 in
10,000 RPM
BC32-16-10-A
1.0000 in
0.6250 in
2.413 in
Aluminum
2.000 in
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-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-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-5/8"-A
19 mm
0.6250 in
2.413 in (61.3 mm)
Aluminum
2.000 in (50.8 mm)
10,000 RPM
BC32-20MM-5/8"-A
20 mm
0.6250 in
2.413 in (61.3 mm)
Aluminum
2.000 in (50.8 mm)
10,000 RPM
Filter
Now Shopping by
Small Bore (B2)
0.6250 in
Small Bore (B2)
10 mm
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