About
Ruland standard length bellows couplings have fewer convolutions than comparably sized extended length styles allowing for stiffness increases up to 33%. They are ideal for applications that require a flexible coupling with high accuracy and repeatability. Standard bellows couplings are available in clamp style hubs with or without keyways in inch, metric, and inch-to-metric bore combinations ranging from 1/8” to 1 3/4" and 3mm to 45mm. Ruland manufactures them in our ISO 9001:2015 certified advanced manufacturing facility in Massachusetts, USA. They are RoHS3, REACH, and Conflict Minerals compliant.
![Standard Length Standard Length](/media/catalog/category/standard-bellows-coupling.jpg)
Ruland extended length bellows couplings have more convolutions than standard bellows styles allowing for up to double the misalignment. They are ideal for precise positioning applications that utilize a servo or stepper motor connected to a ball screw, lead screw, or gearbox. Extended length bellows couplings are available in clamp style hubs with or without keyways in inch, metric, and inch-to-metric bore combinations ranging from 3/16” to 3/4" and 4mm to 20mm. Ruland manufactures them in our ISO 9001:2015 certified advanced manufacturing facility in Massachusetts, USA. They are RoHS3, REACH, and Conflict Minerals compliant.
![Extended Length Extended Length](/media/catalog/category/extended-length-bellows-coupling.jpg)
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
![](https://www.ruland.com/media/wysiwyg/stainless-steel-bellows2.jpg)
- 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
Products
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As low as $84.30 $123.64Ruland BC10-1/4"-3MM-A, 1/4" x 3mm Bellows Coupling, High Stiffness, Aluminum, 0.590" (15.0mm), OD 1.076" (27.3mm) Length
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As low as $84.30 $123.64Ruland BC10-1/4"-4MM-A, 1/4" x 4mm Bellows Coupling, High Stiffness, Aluminum, 0.590" (15.0mm), OD 1.076" (27.3mm) Length
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As low as $84.30 $123.64Ruland BC10-1/4"-5MM-A, 1/4" x 5mm Bellows Coupling, High Stiffness, Aluminum, 0.590" (15.0mm), OD 1.076" (27.3mm) Length
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As low as $84.30 $123.64Ruland BC10-1/4"-6MM-A, 1/4" x 6mm Bellows Coupling, High Stiffness, Aluminum, 0.590" (15.0mm), OD 1.076" (27.3mm) Length
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As low as $84.30 $123.64Ruland BC10-1/8"-3MM-A, 1/8" x 3mm Bellows Coupling, High Stiffness, Aluminum, 0.590" (15.0mm), OD 1.076" (27.3mm) Length
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As low as $84.30 $123.64Ruland BC10-2-2-A, 1/8" x 1/8" Bellows Coupling, High Stiffness, Aluminum, 0.590", OD 1.076" Length
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As low as $84.30 $123.64Ruland BC10-3-2-A, 3/16" x 1/8" Bellows Coupling, High Stiffness, Aluminum, 0.590", OD 1.076" Length
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As low as $84.30 $123.64Ruland BC10-3-3-A, 3/16" x 3/16" Bellows Coupling, High Stiffness, Aluminum, 0.590", OD 1.076" Length
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As low as $84.30 $123.64Ruland BC10-3/16"-3MM-A, 3/16" x 3mm Bellows Coupling, High Stiffness, Aluminum, 0.590" (15.0mm), OD 1.076" (27.3mm) Length
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As low as $84.30 $123.64Ruland BC10-3/16"-4MM-A, 3/16" x 4mm Bellows Coupling, High Stiffness, Aluminum, 0.590" (15.0mm), OD 1.076" (27.3mm) Length
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As low as $84.30 $123.64Ruland BC10-4-2-A, 1/4" x 1/8" Bellows Coupling, High Stiffness, Aluminum, 0.590", OD 1.076" Length
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As low as $84.30 $123.64Ruland BC10-4-3-A, 1/4" x 3/16" Bellows Coupling, High Stiffness, Aluminum, 0.590", OD 1.076" Length
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As low as $84.30 $123.64Ruland BC10-4-4-A, 1/4" x 1/4" Bellows Coupling, High Stiffness, Aluminum, 0.590", OD 1.076" Length
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As low as $84.30 $123.64Ruland BC10-4MM-1/8"-A, 4mm x 1/8" Bellows Coupling, High Stiffness, Aluminum, 0.590" (15.0mm), OD 1.076" (27.3mm) Length
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As low as $84.30 $123.64Ruland BC10-5MM-1/8"-A, 5mm x 1/8" Bellows Coupling, High Stiffness, Aluminum, 0.590" (15.0mm), OD 1.076" (27.3mm) Length
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As low as $84.30 $123.64Ruland BC10-5MM-3/16"-A, 5mm x 3/16" Bellows Coupling, High Stiffness, Aluminum, 0.590" (15.0mm), OD 1.076" (27.3mm) Length
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As low as $84.30 $123.64Ruland BC10-6MM-1/8"-A, 6mm x 1/8" Bellows Coupling, High Stiffness, Aluminum, 0.590" (15.0mm), OD 1.076" (27.3mm) Length
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As low as $84.30 $123.64Ruland BC10-6MM-3/16"-A, 6mm x 3/16" Bellows Coupling, High Stiffness, Aluminum, 0.590" (15.0mm), OD 1.076" (27.3mm) Length
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As low as $79.05 $115.94Ruland 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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As low as $79.05 $115.94Ruland 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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As low as $79.05 $115.94Ruland 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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As low as $79.05 $115.94Ruland BC12-3-3-A, 3/16" x 3/16" Bellows Coupling, Aluminum, Clamp Style, 0.750" OD, 1.303" Length
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As low as $79.05 $115.94Ruland 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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As low as $79.05 $115.94Ruland BC12-4-3-A, 1/4" x 3/16" Bellows Coupling, Aluminum, Clamp Style, 0.750" OD, 1.303" Length