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RULAND MANUFACTURING Clamp-On Bellows Shaft Coupling - Clamp-On Bellows Shaft Couplings for Round Shafts
RULAND MANUFACTURINGClamp-On Bellows Shaft Couplings for Round Shafts

RULAND MANUFACTURING Clamp-On Bellows Shaft Coupling

The RULAND MANUFACTURING Motion Control Coupling is a clamp-on bellows shaft coupling for round shafts, featuring a 5/8 in bore diameter 1 and a 5/16 in bore diameter 2. It is constructed with stainless steel and…

SKU 3G-OTH-135782

Also listed as: BC21105A · BC21 10 5 A

Brand
RULAND MANUFACTURING
Item
Clamp-On Bellows Shaft Coupling
Category
Clamp-On Bellows Shaft Couplings for Round Shafts
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

RULAND MANUFACTURING
Manufacturer Part Number
BC21-10-5-A
Type
5/16 in Bore Dia 2, Aluminum, Inch

Technical Documents

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RULAND MANUFACTURING Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The RULAND MANUFACTURING Motion Control Coupling is a clamp-on bellows shaft coupling for round shafts, featuring a 5/8 in bore diameter 1 and a 5/16 in bore diameter 2. It is constructed with stainless steel and aluminum, designed for inch-sized shafts with different bore dimensions. This coupling is identified by manufacturer part number BC21-10-5-A.

Frequently Asked Questions

What is the RULAND MANUFACTURING BC21-10-5-A motion control coupling used for?

The RULAND MANUFACTURING BC21-10-5-A is a clamp-on bellows shaft coupling designed for precision motion control applications. It connects two round shafts with different bore diameters (5/8 in and 5/16 in) in inch-sized systems, providing zero backlash and high torsional stiffness for positioning and indexing equipment.

What are the specifications of the RULAND MANUFACTURING BC21-10-5-A coupling?

The RULAND MANUFACTURING BC21-10-5-A is a clamp-on bellows shaft coupling with bore diameters of 5/8 in and 5/16 in. It is constructed from stainless steel and aluminum, designed for inch-sized shafts with different bore dimensions. The manufacturer part number is BC21-10-5-A.

Where to buy the RULAND MANUFACTURING BC21-10-5-A coupling worldwide?

You can source the RULAND MANUFACTURING BC21-10-5-A coupling through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this motion control coupling.

How to install a RULAND MANUFACTURING clamp-on bellows coupling?

To install the RULAND MANUFACTURING BC21-10-5-A, clean both shaft ends and the coupling bores. Loosen the clamp screws, slide the coupling onto the shafts, align the equipment, then tighten the screws evenly to the manufacturer's recommended torque. Ensure shafts are properly aligned to avoid premature wear.

Used in

Common applications for RULAND MANUFACTURING
Automated packaging machinery — Ruland beam couplings (e.g., PSR20-8-5-A) for connecting servo motors to conveyor drive shafts.
CNC machine tools — Ruland rigid couplings (e.g., CLX-4-4-A) for precise alignment of ball screw assemblies.
Robotic arm joints — Ruland Oldham coupling hubs (e.g., OSC16-6-A) for accommodating axial motion in end-effector drives.
Pump and compressor systems — Ruland stainless steel shaft collars (e.g., CL-3-ST) for securing impeller shafts.
Printing press rollers — Ruland clamp-on beam couplings (e.g., PCR18-8-8-A) for synchronizing roller rotation with minimal backlash.
Material handling conveyors — Ruland set screw couplings (e.g., PSMR29-7-7-A) for linking gearboxes to drive rollers.

RULAND MANUFACTURING Products

3G Electric supplies RULAND MANUFACTURING clamp-on bellows shaft couplings for round shafts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
RULAND MANUFACTURING Motion Control Coupling: 5/8 in Bore Dia 1, 3/8 in Bore Dia 2, Aluminum, Inch (MPN BC21-10-6-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Motion Control Coupling: 5/8 in Bore Dia 1, 3/8 in Bore Dia 2, Aluminum, Inch (MPN BC21-10-6-A)
This clamp-on bellows shaft coupling connects two round shafts with bore diameters of 5/8 in and 1/2 in. It features a stainless steel bellows and an aluminum body, designed for inch-sized shafts. Typical applications include motion control systems such as servo motors and encoders where zero backlash and misalignment compensation are required
RULAND MANUFACTURING
This clamp-on bellows shaft coupling connects two round shafts with bore diameters of 5/8 in and 1/2 in. It features a stainless steel bellows and an aluminum body, designed for inch-sized shafts. Typical applications include motion control systems such as servo motors and encoders where zero backlash and misalignment compensation are required
RULAND MANUFACTURING Motion Control Coupling: 1/2 in Bore Dia 1, 5/16 in Bore Dia 2, Aluminum, Inch (MPN BC21-8-5-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Motion Control Coupling: 1/2 in Bore Dia 1, 5/16 in Bore Dia 2, Aluminum, Inch (MPN BC21-8-5-A)
This clamp-on bellows shaft coupling connects two round shafts with bore diameters of 3/8 in and 5/16 in. It features a stainless steel bellows and an aluminum hub, providing zero backlash and high torsional stiffness for precision motion control applications such as positioning systems and encoders
RULAND MANUFACTURING
This clamp-on bellows shaft coupling connects two round shafts with bore diameters of 3/8 in and 5/16 in. It features a stainless steel bellows and an aluminum hub, providing zero backlash and high torsional stiffness for precision motion control applications such as positioning systems and encoders
This clamp-on bellows shaft coupling from RULAND MANUFACTURING features a 5/16 in bore diameter on both ends, with an aluminum hub and stainless steel bellows. Designed for inch-series motion control, it provides zero backlash and high torsional stiffness for precision positioning applications. The bellows accommodate angular, parallel, and axial misalignment while transmitting torque smoothly
RULAND MANUFACTURING
This clamp-on bellows shaft coupling from RULAND MANUFACTURING features a 5/16 in bore diameter on both ends, with an aluminum hub and stainless steel bellows. Designed for inch-series motion control, it provides zero backlash and high torsional stiffness for precision positioning applications. The bellows accommodate angular, parallel, and axial misalignment while transmitting torque smoothly
This clamp-on bellows shaft coupling connects two round shafts of different diameters, with a 1/2 in bore on one end and a 3/8 in bore on the other. It features a stainless steel bellows and an aluminum body, designed for inch-sized shafts. The coupling compensates for misalignment while transmitting torque in motion control applications such as positioning systems and servo drives
RULAND MANUFACTURING
This clamp-on bellows shaft coupling connects two round shafts of different diameters, with a 1/2 in bore on one end and a 3/8 in bore on the other. It features a stainless steel bellows and an aluminum body, designed for inch-sized shafts. The coupling compensates for misalignment while transmitting torque in motion control applications such as positioning systems and servo drives

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This clamp-on bellows shaft coupling connects two round shafts with bore diameters of 40 mm and 1 inch. It is constructed from stainless steel and rated for a maximum speed of 10,000 RPM. The coupling compensates for misalignment while transmitting torque, suitable for motion control systems requiring zero backlash and high torsional stiffness
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This clamp-on bellows shaft coupling connects two round shafts with bore diameters of 40 mm and 1 inch. It is constructed from stainless steel and rated for a maximum speed of 10,000 RPM. The coupling compensates for misalignment while transmitting torque, suitable for motion control systems requiring zero backlash and high torsional stiffness
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This clamp-on bellows shaft coupling connects two 5/8 in round shafts, compensating for misalignment while transmitting torque. Constructed from aluminum, it is suited for precision motion control applications such as servo motors and encoders
Clamp-on bellows shaft coupling with 10 mm bore diameter on both ends. Constructed with a stainless steel bellows and an aluminum hub. Designed for metric round shafts in motion control applications requiring precise torque transmission and misalignment compensation
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This clamp-on bellows shaft coupling connects two round shafts with a 20 mm bore and a 3/4 in bore. It is made of stainless steel and rated for a maximum speed of 10,000 RPM. The coupling compensates for misalignment while transmitting torque with high torsional stiffness and zero backlash, suitable for precision motion control and automation systems
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This clamp-on bellows shaft coupling connects two round shafts with a 20 mm bore and a 3/4 in bore. It is made of stainless steel and rated for a maximum speed of 10,000 RPM. The coupling compensates for misalignment while transmitting torque with high torsional stiffness and zero backlash, suitable for precision motion control and automation systems
This clamp-on bellows shaft coupling connects a 3/4 in round shaft to a 15 mm round shaft. It is suited for inch-to-metric bore applications in motion-control systems requiring precise torque transmission and zero backlash. Maximum speed is 10,000 RPM
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This clamp-on bellows shaft coupling connects a 3/4 in round shaft to a 15 mm round shaft. It is suited for inch-to-metric bore applications in motion-control systems requiring precise torque transmission and zero backlash. Maximum speed is 10,000 RPM
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Clamp-on bellows shaft coupling with 16 mm bore diameter on both ends. Stainless steel bellows and aluminum hub provide zero backlash and high torsional stiffness for precision motion control. Accommodates misalignment in positioning systems, encoders, and servo drives
This clamp-on bellows shaft coupling from RULAND MANUFACTURING features 19 mm bores on both ends for connecting two round shafts of equal diameter. The aluminum hub and stainless steel bellows provide zero backlash and high torsional stiffness, suitable for motion control applications such as precision positioning and servo drives
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This clamp-on bellows shaft coupling from RULAND MANUFACTURING features 19 mm bores on both ends for connecting two round shafts of equal diameter. The aluminum hub and stainless steel bellows provide zero backlash and high torsional stiffness, suitable for motion control applications such as precision positioning and servo drives
This clamp-on bellows shaft coupling connects two 15 mm round shafts, compensating for angular, parallel, and axial misalignment while transmitting torque. It features an aluminum hub and stainless steel bellows, with a clamp-on design for secure attachment. Typical applications include motion control systems such as servo motors, encoders, and linear actuators
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This clamp-on bellows shaft coupling connects two 15 mm round shafts, compensating for angular, parallel, and axial misalignment while transmitting torque. It features an aluminum hub and stainless steel bellows, with a clamp-on design for secure attachment. Typical applications include motion control systems such as servo motors, encoders, and linear actuators