Bellows Couplings for Servo Motors

JUMP TO: About Why Ruland Custom Designs Products

About

Inch Dimensions

Bellows couplings with inch dimensions are available are available with clamp style hubs with or without keyways in bore sizes ranging from 1/8” to 1-3/4”. Stainless steel hubs and other custom features are available by special order.

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Metric Dimensions

Bellows couplings with metric dimensions are available with clamp style hubs with or without keyways in bore sizes ranging from 3mm to 45mm. Stainless steel hubs and other custom features are available by special order.

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Inch to Metric

Bellows couplings with inch to metric bore combinations are available with clamp style hubs with or without keyways in bore dimensions ranging from 1/8" (3mm) to 1-3/4" (45mm). Stainless steel hubs and other custom features are available by special order.

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Why Ruland?

Speeds up to 10,000 RPMs with reduced vibrations due to our standard balanced design.
Do not introduce misalignment causing high bearing loads because of proprietary assembly processes that maintain bore concentricity.
High torque and torsional stiffness with industry-leading misalignment capabilities.
Low inertia for use in highly responsive systems due to the use of high-grade lightweight 2024 t351 aluminum.

CUSTOM DESIGNS

As a service to our customers, we offer our vast manufacturing experience and talents to meet special needs with custom parts. Our in-house engineering team has extensive experience designing and custom engineering solutions to meet your requirements. If you do not see what you are looking for in our standard line, please inquire about custom options.

Examples of Custom Work

Stainless steel bellows couplings
Clamp to set screw hubs
Special bore sizes and geometry
Special lengths, widths and outside diameters
Different materials, finishes, or colors
Custom hardware requests
And Many Others... Please Contact Us for More Information

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Download CAD File:
BC12-1/4\"-4MM-A

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BC12-1/4"-4MM-A

As low as $79.05 $115.94

Ruland BC12-1/4"-4MM-A, 1/4" x 4mm Bellows Coupling, Aluminum, Clamp Style, 0.750" (19.1mm) OD, 1.303" (33.1mm) Length

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BC12-1/4\"-5MM-A

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BC12-1/4"-5MM-A

As low as $79.05 $115.94

Ruland BC12-1/4"-5MM-A, 1/4" x 5mm Bellows Coupling, Aluminum, Clamp Style, 0.750" (19.1mm) OD, 1.303" (33.1mm) Length

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BC12-1/4\"-6MM-A

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BC12-1/4"-6MM-A

As low as $79.05 $115.94

Ruland BC12-1/4"-6MM-A, 1/4" x 6mm Bellows Coupling, Aluminum, Clamp Style, 0.750" (19.1mm) OD, 1.303" (33.1mm) Length

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Download CAD File:
BC12-3/16\"-4MM-A

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BC12-3/16"-4MM-A

As low as $79.05 $115.94

Ruland BC12-3/16"-4MM-A, 3/16" x 4mm Bellows Coupling, Aluminum, Clamp Style, 0.750" (19.1mm) OD, 1.303" (33.1mm) Length

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Download CAD File:
BC12-5/16\"-4MM-A

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BC12-5/16"-4MM-A

As low as $79.05 $115.94

Ruland BC12-5/16"-4MM-A, 5/16" x 4mm Bellows Coupling, Aluminum, Clamp Style, 0.750" (19.1mm) OD, 1.303" (33.1mm) Length

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Download CAD File:
BC12-5/16\"-5MM-A

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BC12-5/16"-5MM-A

As low as $79.05 $115.94

Ruland BC12-5/16"-5MM-A, 5/16" x 5mm Bellows Coupling, Aluminum, Clamp Style, 0.750" (19.1mm) OD, 1.303" (33.1mm) Length

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Download CAD File:
BC12-5/16\"-6MM-A

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BC12-5/16"-6MM-A

As low as $79.05 $115.94

Ruland BC12-5/16"-6MM-A, 5/16" x 6mm Bellows Coupling, Aluminum, Clamp Style, 0.750" (19.1mm) OD, 1.303" (33.1mm) Length

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Download CAD File:
BC12-5/16\"-7MM-A

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BC12-5/16"-7MM-A

As low as $79.05 $115.94

Ruland BC12-5/16"-7MM-A, 5/16" x 7mm Bellows Coupling, Aluminum, Clamp Style, 0.750" (19.1mm) OD, 1.303" (33.1mm) Length

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Download CAD File:
BC12-5MM-3/16\"-A

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BC12-5MM-3/16"-A

As low as $79.05 $115.94

Ruland BC12-5MM-3/16"-A, 5mm x 3/16" Bellows Coupling, Aluminum, Clamp Style, 0.750" (19.1mm) OD, 1.303" (33.1mm) Length

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Download CAD File:
BC12-6MM-3/16\"-A

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BC12-6MM-3/16"-A

As low as $79.05 $115.94

Ruland BC12-6MM-3/16"-A, 6mm x 3/16" Bellows Coupling, Aluminum, Clamp Style, 0.750" (19.1mm) OD, 1.303" (33.1mm) Length

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Download CAD File:
BC12-7MM-1/4\"-A

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BC12-7MM-1/4"-A

As low as $79.05 $115.94

Ruland BC12-7MM-1/4"-A, 7mm x 1/4" Bellows Coupling, Aluminum, Clamp Style, 0.750" (19.1mm) OD, 1.303" (33.1mm) Length

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Download CAD File:
BC12-7MM-3/16\"-A

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BC12-7MM-3/16"-A

As low as $79.05 $115.94

Ruland BC12-7MM-3/16"-A, 7mm x 3/16" Bellows Coupling, Aluminum, Clamp Style, 0.750" (19.1mm) OD, 1.303" (33.1mm) Length

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Download CAD File:
BC12-8MM-1/4\"-A

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BC12-8MM-1/4"-A

As low as $79.05 $115.94

Ruland BC12-8MM-1/4"-A, 8mm x 1/4" Bellows Coupling, Aluminum, Clamp Style, 0.750" (19.1mm) OD, 1.303" (33.1mm) Length

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Download CAD File:
BC12-8MM-3/16\"-A

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BC12-8MM-3/16"-A

As low as $79.05 $115.94

Ruland BC12-8MM-3/16"-A, 8mm x 3/16" Bellows Coupling, Aluminum, Clamp Style, 0.750" (19.1mm) OD, 1.303" (33.1mm) Length

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Download CAD File:
BC12-8MM-5/16\"-A

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BC12-8MM-5/16"-A

As low as $79.05 $115.94

Ruland BC12-8MM-5/16"-A, 8mm x 5/16" Bellows Coupling, Aluminum, Clamp Style, 0.750" (19.1mm) OD, 1.303" (33.1mm) Length

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Part number	Bore (B1)	Small Bore (B2)	Length (L)	Material	Outer Diameter (OD)	Maximum Speed
BC12-1/4"-4MM-A	0.2500 in	4 mm	1.306 in (33.2 mm)	Aluminum	0.750 in (19.1 mm)	10,000 RPM
BC12-1/4"-5MM-A	0.2500 in	5 mm	1.306 in (33.2 mm)	Aluminum	0.750 in (19.1 mm)	10,000 RPM
BC12-1/4"-6MM-A	0.2500 in	6 mm	1.306 in (33.2 mm)	Aluminum	0.750 in (19.1 mm)	10,000 RPM
BC12-3/16"-4MM-A	0.1875 in	4 mm	1.306 in (33.2 mm)	Aluminum	0.750 in (19.1 mm)	10,000 RPM
BC12-5/16"-4MM-A	0.3125 in	4 mm	1.306 in (33.2 mm)	Aluminum	0.750 in (19.1 mm)	10,000 RPM
BC12-5/16"-5MM-A	0.3125 in	5 mm	1.306 in (33.2 mm)	Aluminum	0.750 in (19.1 mm)	10,000 RPM
BC12-5/16"-6MM-A	0.3125 in	6 mm	1.306 in (33.2 mm)	Aluminum	0.750 in (19.1 mm)	10,000 RPM
BC12-5/16"-7MM-A	0.3125 in	7 mm	1.306 in (33.2 mm)	Aluminum	0.750 in (19.1 mm)	10,000 RPM
BC12-5MM-3/16"-A	5 mm	0.1875 in	1.306 in (33.2 mm)	Aluminum	0.750 in (19.1 mm)	10,000 RPM
BC12-6MM-3/16"-A	6 mm	0.1875 in	1.306 in (33.2 mm)	Aluminum	0.750 in (19.1 mm)	10,000 RPM
BC12-7MM-1/4"-A	7 mm	0.2500 in	1.306 in (33.2 mm)	Aluminum	0.750 in (19.1 mm)	10,000 RPM
BC12-7MM-3/16"-A	7 mm	0.1875 in	1.306 in (33.2 mm)	Aluminum	0.750 in (19.1 mm)	10,000 RPM
BC12-8MM-1/4"-A	8 mm	0.2500 in	1.306 in (33.2 mm)	Aluminum	0.750 in (19.1 mm)	10,000 RPM
BC12-8MM-3/16"-A	8 mm	0.1875 in	1.306 in (33.2 mm)	Aluminum	0.750 in (19.1 mm)	10,000 RPM
BC12-8MM-5/16"-A	8 mm	0.3125 in	1.306 in (33.2 mm)	Aluminum	0.750 in (19.1 mm)	10,000 RPM

Bellows Coupling

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