RULAND MANUFACTURING Bellows Coupling: 1/2 in Bore Dia 1, 8 mm Bore Dia 2
This RULAND MANUFACTURING Bellows Coupling is a clamp-on shaft coupling for keyed shafts with a 1/2 in bore diameter and an 8 mm bore diameter, featuring same bore dimensions and an inch-to-metric bore configuration…
SKU 3G-OTH-134824
Need installation or engineering help?
Ask a question
Product Description
This RULAND MANUFACTURING Bellows Coupling is a clamp-on shaft coupling for keyed shafts with a 1/2 in bore diameter and an 8 mm bore diameter, featuring same bore dimensions and an inch-to-metric bore configuration. Made of stainless steel, it has a maximum speed of 10,000 RPM and is identified by manufacturer part number BCK21-1/2"-8MM-A.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is the RULAND MANUFACTURING Bellows Coupling BCK21-1/2"-8MM-A used for?
This clamp-on bellows shaft coupling connects a 1/2 in keyed shaft to an 8 mm keyed shaft in motion-control systems. It compensates for misalignment while transmitting torque, making it suitable for precision positioning, robotics, and servo-drive applications where zero backlash and high torsional stiffness are required.
What are the specifications of the RULAND MANUFACTURING Bellows Coupling BCK21-1/2"-8MM-A?
This coupling has a 1/2 in bore diameter and an 8 mm bore diameter, both with keyways. It is made of stainless steel, has a maximum speed of 10,000 RPM, and features an inch-to-metric bore configuration with same bore dimensions. The manufacturer part number is BCK21-1/2"-8MM-A.
Where to buy the RULAND MANUFACTURING Bellows Coupling BCK21-1/2"-8MM-A worldwide?
3G Electric supplies this RULAND MANUFACTURING bellows coupling worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we source and deliver this part to any country.
How to select the correct RULAND MANUFACTURING Bellows Coupling for a keyed shaft?
Select a coupling by matching bore diameters to your shaft sizes—here 1/2 in and 8 mm—and ensuring both shafts are keyed. Verify the maximum speed (10,000 RPM) exceeds your application speed. Choose stainless steel for corrosion resistance. Confirm the coupling type (clamp-on bellows) suits your misalignment and torque needs.
Used in
Common applications for RULAND MANUFACTURINGRULAND MANUFACTURING Products
3G Electric supplies RULAND MANUFACTURING clamp-on bellows shaft couplings for keyed shafts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















