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

RULAND MANUFACTURING Disc Coupling: 45 mm x 1 1/4 in Bore Dia, 3 1/8 in OD - Double Disc Couplings for Keyed Shafts
RULAND MANUFACTURINGDouble Disc Couplings for Keyed Shafts

RULAND MANUFACTURING Disc Coupling: 45 mm x 1 1/4 in Bore Dia, 3 1/8 in OD

The RULAND MANUFACTURING Disc Coupling (MPN DCDK50-45MM-1-1/4"-A) is a double disc coupling for keyed shafts with a 45 mm x 1 1/4 in bore diameter and 3 1/8 in OD. It features a round with keyway bore, an aluminum…

SKU 3G-OTH-152589

Also listed as: DCDK5045MM114A · DCDK50 45MM 1 1 4 A · DCDK50-45MM-1-1-4-A

Brand
RULAND MANUFACTURING
Item
Disc Coupling: 45 mm x 1 1/4 in Bore Dia, 3 1/8 in OD
Category
Double Disc 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
DCDK50-45MM-1-1/4"-A
Type
Round with Keyway
OD
3 1/8 in

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

The RULAND MANUFACTURING Disc Coupling (MPN DCDK50-45MM-1-1/4"-A) is a double disc coupling for keyed shafts with a 45 mm x 1 1/4 in bore diameter and 3 1/8 in OD. It features a round with keyway bore, an aluminum hub and center spacer, and stainless steel discs. This coupling has 2 discs with a center spacer and is designed for inch shaft dimensions with different bore dimensions.

Frequently Asked Questions

What is the RULAND MANUFACTURING DCDK50-45MM-1-1/4"-A disc coupling used for?

This double disc coupling connects keyed shafts in motion-control applications, compensating for misalignment while transmitting torque. It is commonly used in servo motors, encoders, and precision positioning systems where zero backlash and high torsional stiffness are required.

What are the specifications of the RULAND MANUFACTURING DCDK50 disc coupling?

The coupling has a 45 mm x 1 1/4 in bore diameter, 3 1/8 in OD, and a round with keyway bore type. It features an aluminum hub and center spacer with stainless steel discs. The design includes 2 discs with a center spacer for inch shaft dimensions with different bore sizes.

Where to buy the RULAND MANUFACTURING DCDK50 disc coupling worldwide?

3G Electric supplies the RULAND MANUFACTURING DCDK50-45MM-1-1/4"-A disc 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.

How to select the correct RULAND MANUFACTURING disc coupling for keyed shafts?

Select based on shaft diameters (bore size), torque requirements, and misalignment tolerance. Ensure the bore type (round with keyway) matches your shaft keyway. Verify OD and overall length fit within your assembly space. RULAND MANUFACTURING couplings offer zero-backlash performance for precision drives.

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 double disc 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 Disc Coupling: 45 mm x 1 3/4 in Bore Dia, 3 1/8 in OD, Round with Keyway (MPN DCDK50-45MM-1-3/4"-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Disc Coupling: 45 mm x 1 3/4 in Bore Dia, 3 1/8 in OD, Round with Keyway (MPN DCDK50-45MM-1-3/4"-A)
RULAND MANUFACTURING Disc Coupling: 45 mm x 1 1/2 in Bore Dia, 3 1/8 in OD, Round with Keyway (MPN DCDK50-45MM-1-1/2"-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Disc Coupling: 45 mm x 1 1/2 in Bore Dia, 3 1/8 in OD, Round with Keyway (MPN DCDK50-45MM-1-1/2"-A)
RULAND MANUFACTURING Disc Coupling: 35 mm x 1 1/4 in Bore Dia, 3 1/8 in OD, Round with Keyway (MPN DCDK50-35MM-1-1/4"-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Disc Coupling: 35 mm x 1 1/4 in Bore Dia, 3 1/8 in OD, Round with Keyway (MPN DCDK50-35MM-1-1/4"-A)
RULAND MANUFACTURING Disc Coupling: 40 mm x 1 1/4 in Bore Dia, 3 1/8 in OD, Round with Keyway (MPN DCDK50-40MM-1-1/4"-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Disc Coupling: 40 mm x 1 1/4 in Bore Dia, 3 1/8 in OD, Round with Keyway (MPN DCDK50-40MM-1-1/4"-A)
RULAND MANUFACTURING Disc Coupling: 40 mm x 1 1/2 in Bore Dia, 3 1/8 in OD, Round with Keyway (MPN DCDK50-40MM-1-1/2"-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Disc Coupling: 40 mm x 1 1/2 in Bore Dia, 3 1/8 in OD, Round with Keyway (MPN DCDK50-40MM-1-1/2"-A)
RULAND MANUFACTURING Disc Coupling: 35 mm x 1 in Bore Dia, 3 1/8 in OD, Round with Keyway, Clamp On (MPN DCDK50-35MM-1"-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Disc Coupling: 35 mm x 1 in Bore Dia, 3 1/8 in OD, Round with Keyway, Clamp On (MPN DCDK50-35MM-1"-A)

More from RULAND MANUFACTURING

View all RULAND MANUFACTURING parts
RULAND MANUFACTURING Disc Coupling: 1 3/4 in x 1 3/4 in Bore Dia, 3 1/8 in OD, Round with Keyway (MPN DCDK50-28-28-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Disc Coupling: 1 3/4 in x 1 3/4 in Bore Dia, 3 1/8 in OD, Round with Keyway (MPN DCDK50-28-28-A)
RULAND MANUFACTURING Disc Coupling: 35 mm x 1 1/4 in Bore Dia, 2 3/4 in OD, Round with Keyway (MPN DCDK44-35MM-1-1/4"-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Disc Coupling: 35 mm x 1 1/4 in Bore Dia, 2 3/4 in OD, Round with Keyway (MPN DCDK44-35MM-1-1/4"-A)
RULAND MANUFACTURING Disc Coupling: 1 in x 25 mm Bore Dia, 2 3/4 in OD, Round with Keyway, Clamp On (MPN DCDK44-1"-25MM-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Disc Coupling: 1 in x 25 mm Bore Dia, 2 3/4 in OD, Round with Keyway, Clamp On (MPN DCDK44-1"-25MM-A)
RULAND MANUFACTURING Disc Coupling: 40 mm x 25 mm Bore Dia, 79.4 mm OD, Round with Keyway, Clamp On (MPN MDCDK80-40-25-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Disc Coupling: 40 mm x 25 mm Bore Dia, 79.4 mm OD, Round with Keyway, Clamp On (MPN MDCDK80-40-25-A)
RULAND MANUFACTURING Disc Coupling: 45 mm x 35 mm Bore Dia, 79.4 mm OD, Round with Keyway, Clamp On (MPN MDCDK80-45-35-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Disc Coupling: 45 mm x 35 mm Bore Dia, 79.4 mm OD, Round with Keyway, Clamp On (MPN MDCDK80-45-35-A)
RULAND MANUFACTURING Disc Coupling: 1 1/2 in x 30 mm Bore Dia, 3 1/8 in OD, Round with Keyway (MPN DCDK50-1-1/2"-30MM-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Disc Coupling: 1 1/2 in x 30 mm Bore Dia, 3 1/8 in OD, Round with Keyway (MPN DCDK50-1-1/2"-30MM-A)
RULAND MANUFACTURING Disc Coupling: 35 mm x 1 in Bore Dia, 2 3/4 in OD, Round with Keyway, Clamp On (MPN DCDK44-35MM-1"-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Disc Coupling: 35 mm x 1 in Bore Dia, 2 3/4 in OD, Round with Keyway, Clamp On (MPN DCDK44-35MM-1"-A)
RULAND MANUFACTURING Disc Coupling: 1 3/4 in x 35 mm Bore Dia, 3 1/8 in OD, Round with Keyway (MPN DCDK50-1-3/4"-35MM-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Disc Coupling: 1 3/4 in x 35 mm Bore Dia, 3 1/8 in OD, Round with Keyway (MPN DCDK50-1-3/4"-35MM-A)