Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

RULAND MANUFACTURING Bellows Coupling: 1 3/4 in Bore Dia 1, 30 mm Bore Dia 2 - Clamp-On Bellows Shaft Couplings for Keyed Shafts
RULAND MANUFACTURINGClamp-On Bellows Shaft Couplings for Keyed Shafts

RULAND MANUFACTURING Bellows Coupling: 1 3/4 in Bore Dia 1, 30 mm Bore Dia 2

This RULAND MANUFACTURING Bellows Coupling is a clamp-on bellows shaft coupling for keyed shafts with different bore dimensions: 1 3/4 in bore diameter 1 and 30 mm bore diameter 2. It is made of stainless steel, has…

SKU 3G-OTH-134977

Also listed as: BCK5013430MMA · BCK50 1 3 4 30MM A · BCK50-1-3-4-30MM-A

Brand
RULAND MANUFACTURING
Item
Bellows Coupling: 1 3/4 in Bore Dia 1, 30 mm Bore Dia 2
Category
Clamp-On Bellows Shaft Couplings for Keyed Shafts
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

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
BCK50-1-3/4"-30MM-A
Type
30 mm Bore Dia 2
Max Speed
10,000 RPM

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

This RULAND MANUFACTURING Bellows Coupling is a clamp-on bellows shaft coupling for keyed shafts with different bore dimensions: 1 3/4 in bore diameter 1 and 30 mm bore diameter 2. It is made of stainless steel, has a maximum speed of 10,000 RPM, and features an inch to metric bore configuration.

Frequently Asked Questions

What is a RULAND MANUFACTURING bellows coupling used for?

A RULAND MANUFACTURING bellows coupling connects two shafts while compensating for misalignment. This clamp-on model is designed for keyed shafts with different bore dimensions, such as 1 3/4 in and 30 mm, and is used in precision motion control applications like encoders and servo drives.

What are the specifications of the RULAND BCK50-1-3/4"-30MM-A bellows coupling?

This RULAND MANUFACTURING bellows coupling has bore diameters of 1 3/4 in and 30 mm, a maximum speed of 10,000 RPM, and is made of stainless steel. It features a clamp-on design for keyed shafts and an inch-to-metric bore configuration. The manufacturer part number is BCK50-1-3/4"-30MM-A.

Where to buy RULAND MANUFACTURING bellows couplings worldwide?

3G Electric supplies RULAND MANUFACTURING bellows couplings 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 on the BCK50-1-3/4"-30MM-A or other RULAND coupling models.

How to select a RULAND bellows coupling for keyed shafts?

To select a RULAND bellows coupling, match bore diameters to your shaft sizes—this model fits 1 3/4 in and 30 mm. Ensure the coupling type (clamp-on) and material (stainless steel) suit your environment. Verify max speed (10,000 RPM) exceeds your application's requirements. RULAND couplings are designed for precision alignment.

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 keyed shafts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
RULAND MANUFACTURING Bellows Coupling: 1 1/4 in Bore Dia 1, 30 mm Bore Dia 2, 10,000 RPM Max Speed (MPN BCK50-1-1/4"-30MM-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Bellows Coupling: 1 1/4 in Bore Dia 1, 30 mm Bore Dia 2, 10,000 RPM Max Speed (MPN BCK50-1-1/4"-30MM-A)
RULAND MANUFACTURING Bellows Coupling: 30 mm Bore Dia 1, 1 in Bore Dia 2, 10,000 RPM Max Speed (MPN BCK50-30MM-1"-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Bellows Coupling: 30 mm Bore Dia 1, 1 in Bore Dia 2, 10,000 RPM Max Speed (MPN BCK50-30MM-1"-A)
RULAND MANUFACTURING Bellows Coupling: 1 1/4 in Bore Dia 1, 30 mm Bore Dia 2, 10,000 RPM Max Speed (MPN BCK44-1-1/4"-30MM-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Bellows Coupling: 1 1/4 in Bore Dia 1, 30 mm Bore Dia 2, 10,000 RPM Max Speed (MPN BCK44-1-1/4"-30MM-A)
RULAND MANUFACTURING Bellows Coupling: 1 3/4 in Bore Dia 1, 40 mm Bore Dia 2, 10,000 RPM Max Speed (MPN BCK50-1-3/4"-40MM-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Bellows Coupling: 1 3/4 in Bore Dia 1, 40 mm Bore Dia 2, 10,000 RPM Max Speed (MPN BCK50-1-3/4"-40MM-A)
RULAND MANUFACTURING Bellows Coupling: 1 3/4 in Bore Dia 1, 35 mm Bore Dia 2, 10,000 RPM Max Speed (MPN BCK50-1-3/4"-35MM-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Bellows Coupling: 1 3/4 in Bore Dia 1, 35 mm Bore Dia 2, 10,000 RPM Max Speed (MPN BCK50-1-3/4"-35MM-A)
RULAND MANUFACTURING Bellows Coupling: 1 3/4 in Bore Dia 1, 25 mm Bore Dia 2, 10,000 RPM Max Speed (MPN BCK50-1-3/4"-25MM-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Bellows Coupling: 1 3/4 in Bore Dia 1, 25 mm Bore Dia 2, 10,000 RPM Max Speed (MPN BCK50-1-3/4"-25MM-A)

More from RULAND MANUFACTURING

View all RULAND MANUFACTURING parts
RULAND MANUFACTURING Bellows Coupling: 25 mm Bore Dia 1, 25 mm Bore Dia 2, 10,000 RPM Max Speed (MPN MBCK70-25-25-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Bellows Coupling: 25 mm Bore Dia 1, 25 mm Bore Dia 2, 10,000 RPM Max Speed (MPN MBCK70-25-25-A)
RULAND MANUFACTURING Bellows Coupling: 25 mm Bore Dia 1, 16 mm Bore Dia 2, 5 mm x 8 mm Keyway Size 1 (MPN MBCK51-25-16-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Bellows Coupling: 25 mm Bore Dia 1, 16 mm Bore Dia 2, 5 mm x 8 mm Keyway Size 1 (MPN MBCK51-25-16-A)
RULAND MANUFACTURING Bellows Coupling: 1 1/4 in Bore Dia 1, 1 1/4 in Bore Dia 2, Aluminum, Clamp On (MPN BCK44-20-20-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Bellows Coupling: 1 1/4 in Bore Dia 1, 1 1/4 in Bore Dia 2, Aluminum, Clamp On (MPN BCK44-20-20-A)
RULAND MANUFACTURING Bellows Coupling: 3/4 in Bore Dia 1, 5/8 in Bore Dia 2, 10,000 RPM Max Speed (MPN BCK26-12-10-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Bellows Coupling: 3/4 in Bore Dia 1, 5/8 in Bore Dia 2, 10,000 RPM Max Speed (MPN BCK26-12-10-A)
RULAND MANUFACTURING Bellows Coupling: 25 mm Bore Dia 1, 25 mm Bore Dia 2, 8 mm x 8 mm Keyway Size 1 (MPN MBCK57-25-25-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Bellows Coupling: 25 mm Bore Dia 1, 25 mm Bore Dia 2, 8 mm x 8 mm Keyway Size 1 (MPN MBCK57-25-25-A)
RULAND MANUFACTURING Bellows Coupling: 16 mm Bore Dia 1, 10 mm Bore Dia 2, 3 mm x 5 mm Keyway Size 1 (MPN MBCK41-16-10-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Bellows Coupling: 16 mm Bore Dia 1, 10 mm Bore Dia 2, 3 mm x 5 mm Keyway Size 1 (MPN MBCK41-16-10-A)
RULAND MANUFACTURING Bellows Coupling: 3/4 in Bore Dia 1, 12 mm Bore Dia 2, 10,000 RPM Max Speed (MPN BCK32-3/4"-12MM-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Bellows Coupling: 3/4 in Bore Dia 1, 12 mm Bore Dia 2, 10,000 RPM Max Speed (MPN BCK32-3/4"-12MM-A)
RULAND MANUFACTURING Bellows Coupling: 1 in Bore Dia 1, 25 mm Bore Dia 2, 10,000 RPM Max Speed (MPN BCK36-1"-25MM-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Bellows Coupling: 1 in Bore Dia 1, 25 mm Bore Dia 2, 10,000 RPM Max Speed (MPN BCK36-1"-25MM-A)