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

The RULAND MANUFACTURING Disc Coupling (MPN DCDK50-20-16-A) is a double disc coupling for keyed shafts with a 1 1/4 in x 1 in bore diameter and a 3 1/8 in OD. It features a round with keyway bore type, an aluminum…

SKU 3G-OTH-152586

Brand
RULAND MANUFACTURING
Item
Disc Coupling: 1 1/4 in x 1 in Bore Dia, 3 1/8 in OD
Category
Double Disc Couplings for Keyed Shafts
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Technical Specifications

RULAND MANUFACTURING
Manufacturer Part Number
DCDK50-20-16-A
Type
Round with Keyway
OD
3 1/8 in
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RULAND MANUFACTURING Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The RULAND MANUFACTURING Disc Coupling (MPN DCDK50-20-16-A) is a double disc coupling for keyed shafts with a 1 1/4 in x 1 in bore diameter and a 3 1/8 in OD. It features a round with keyway bore type, an aluminum hub and center spacer, and stainless steel disc packs. This coupling has 2 discs with a center spacer and is designed for inch-sized shafts with different bore dimensions.

Frequently Asked Questions

What is the RULAND MANUFACTURING DCDK50-20-16-A disc coupling used for?

The RULAND MANUFACTURING DCDK50-20-16-A double disc coupling connects two keyed shafts with different bore diameters (1 1/4 in and 1 in) in motion-control applications. It compensates for angular, parallel, and axial misalignment while transmitting torque. Common uses include servo motors, encoders, and precision positioning systems where zero backlash and high torsional stiffness are required.

What are the specifications of the RULAND MANUFACTURING DCDK50-20-16-A disc coupling?

The RULAND MANUFACTURING DCDK50-20-16-A has a 3 1/8 in outer diameter, round with keyway bore type, and bore sizes of 1 1/4 in and 1 in. It features an aluminum hub and center spacer with stainless steel disc packs. The coupling includes 2 discs with a center spacer and is designed for inch-sized shafts with different bore dimensions.

Where to buy the RULAND MANUFACTURING DCDK50-20-16-A disc coupling worldwide?

3G Electric supplies the RULAND MANUFACTURING DCDK50-20-16-A disc coupling worldwide. As a global industrial equipment distributor established in 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we source and deliver this precision coupling to any country.

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

To select the correct RULAND MANUFACTURING disc coupling, match the bore diameters to your shaft sizes (e.g., 1 1/4 in and 1 in for the DCDK50-20-16-A). Verify the outer diameter fits your space envelope, and confirm the keyway type (round with keyway) matches your shaft key. Ensure the coupling material (aluminum hub, stainless steel discs) suits your environment and torque requirements.

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.

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RULAND MANUFACTURING Disc Coupling: 1 1/4 in x 1 1/4 in Bore Dia, 3 1/8 in OD, Round with Keyway (MPN DCDK50-20-20-A). Key specifications — attr869742: RULAND MANUFACTURING; attr869741: Round with Keyway; attr869743: Aluminum; attr869746: No; attr869747: Stainless Steel; attr869761: Aluminum; attr869778: 2 with Center Spacer; attr869794: Inch.
RULAND MANUFACTURING
RULAND MANUFACTURING Disc Coupling: 1 1/4 in x 1 1/4 in Bore Dia, 3 1/8 in OD, Round with Keyway (MPN DCDK50-20-20-A). Key specifications — attr869742: RULAND MANUFACTURING; attr869741: Round with Keyway; attr869743: Aluminum; attr869746: No; attr869747: Stainless Steel; attr869761: Aluminum; attr869778: 2 with Center Spacer; attr869794: Inch.
RULAND MANUFACTURING Disc Coupling: 1 1/4 in x 25 mm Bore Dia, 3 1/8 in OD, Round with Keyway (MPN DCDK50-1-1/4"-25MM-A). Key specifications — attr869742: RULAND MANUFACTURING; attr869741: Round with Keyway; attr869743: Aluminum; attr869746: Yes; attr869747: Stainless Steel; attr869761: Aluminum; attr869778: 2 with Center Spacer; attr869794: Inch.
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RULAND MANUFACTURING Disc Coupling: 1 1/4 in x 25 mm Bore Dia, 3 1/8 in OD, Round with Keyway (MPN DCDK50-1-1/4"-25MM-A). Key specifications — attr869742: RULAND MANUFACTURING; attr869741: Round with Keyway; attr869743: Aluminum; attr869746: Yes; attr869747: Stainless Steel; attr869761: Aluminum; attr869778: 2 with Center Spacer; attr869794: Inch.
RULAND MANUFACTURING Disc Coupling: 1 3/4 in x 1 1/4 in Bore Dia, 3 1/8 in OD, Round with Keyway (MPN DCDK50-28-20-A). Key specifications — attr869742: RULAND MANUFACTURING; attr869741: Round with Keyway; attr869743: Aluminum; attr869746: Yes; attr869747: Stainless Steel; attr869761: Aluminum; attr869778: 2 with Center Spacer; attr869794: Inch.
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RULAND MANUFACTURING Disc Coupling: 1 3/4 in x 1 1/4 in Bore Dia, 3 1/8 in OD, Round with Keyway (MPN DCDK50-28-20-A). Key specifications — attr869742: RULAND MANUFACTURING; attr869741: Round with Keyway; attr869743: Aluminum; attr869746: Yes; attr869747: Stainless Steel; attr869761: Aluminum; attr869778: 2 with Center Spacer; attr869794: Inch.
RULAND MANUFACTURING Disc Coupling: 1 1/2 in x 1 in Bore Dia, 3 1/8 in OD, Round with Keyway (MPN DCDK50-24-16-A). Key specifications — attr869742: RULAND MANUFACTURING; attr869741: Round with Keyway; attr869743: Aluminum; attr869746: Yes; attr869747: Stainless Steel; attr869761: Aluminum; attr869778: 2 with Center Spacer; attr869794: Inch.
RULAND MANUFACTURING
RULAND MANUFACTURING Disc Coupling: 1 1/2 in x 1 in Bore Dia, 3 1/8 in OD, Round with Keyway (MPN DCDK50-24-16-A). Key specifications — attr869742: RULAND MANUFACTURING; attr869741: Round with Keyway; attr869743: Aluminum; attr869746: Yes; attr869747: Stainless Steel; attr869761: Aluminum; attr869778: 2 with Center Spacer; attr869794: Inch.
RULAND MANUFACTURING Disc Coupling: 1 1/2 in x 1 1/4 in Bore Dia, 3 1/8 in OD, Round with Keyway (MPN DCDK50-24-20-A). Key specifications — attr869742: RULAND MANUFACTURING; attr869741: Round with Keyway; attr869743: Aluminum; attr869746: Yes; attr869747: Stainless Steel; attr869761: Aluminum; attr869778: 2 with Center Spacer; attr869794: Inch.
RULAND MANUFACTURING
RULAND MANUFACTURING Disc Coupling: 1 1/2 in x 1 1/4 in Bore Dia, 3 1/8 in OD, Round with Keyway (MPN DCDK50-24-20-A). Key specifications — attr869742: RULAND MANUFACTURING; attr869741: Round with Keyway; attr869743: Aluminum; attr869746: Yes; attr869747: Stainless Steel; attr869761: Aluminum; attr869778: 2 with Center Spacer; attr869794: Inch.
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). Key specifications — attr869742: RULAND MANUFACTURING; attr869741: Round with Keyway; attr869743: Aluminum; attr869746: Yes; attr869747: Stainless Steel; attr869761: Aluminum; attr869778: 2 with Center Spacer; attr869794: Inch.
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). Key specifications — attr869742: RULAND MANUFACTURING; attr869741: Round with Keyway; attr869743: Aluminum; attr869746: Yes; attr869747: Stainless Steel; attr869761: Aluminum; attr869778: 2 with Center Spacer; attr869794: Inch.

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RULAND MANUFACTURING
RULAND MANUFACTURING Disc Coupling: 1 1/2 in x 1 1/4 in Bore Dia, 2 3/4 in OD, Round with Keyway (MPN DCDK44-24-20-A). Key specifications — attr869742: RULAND MANUFACTURING; attr869741: Round with Keyway; attr869743: Aluminum; attr869746: Yes; attr869747: Stainless Steel; attr869761: Aluminum; attr869778: 2 with Center Spacer; attr869794: Inch.
RULAND MANUFACTURING Disc Coupling: 40 mm x 30 mm Bore Dia, 79.4 mm OD, Round with Keyway, Clamp On (MPN MDCDK80-40-30-A). Key specifications — attr869742: RULAND MANUFACTURING; attr869741: Round with Keyway; attr869743: Aluminum; attr869746: Yes; attr869747: Stainless Steel; attr869761: Aluminum; attr869778: 2 with Center Spacer; attr869794: Metric.
RULAND MANUFACTURING
RULAND MANUFACTURING Disc Coupling: 40 mm x 30 mm Bore Dia, 79.4 mm OD, Round with Keyway, Clamp On (MPN MDCDK80-40-30-A). Key specifications — attr869742: RULAND MANUFACTURING; attr869741: Round with Keyway; attr869743: Aluminum; attr869746: Yes; attr869747: Stainless Steel; attr869761: Aluminum; attr869778: 2 with Center Spacer; attr869794: Metric.
RULAND MANUFACTURING Disc Coupling: 1 1/4 in x 30 mm Bore Dia, 2 3/4 in OD, Round with Keyway (MPN DCDK44-1-1/4"-30MM-A). Key specifications — attr869742: RULAND MANUFACTURING; attr869741: Round with Keyway; attr869743: Aluminum; attr869746: Yes; attr869747: Stainless Steel; attr869761: Aluminum; attr869778: 2 with Center Spacer; attr869794: Inch to Metric Bore.
RULAND MANUFACTURING
RULAND MANUFACTURING Disc Coupling: 1 1/4 in x 30 mm Bore Dia, 2 3/4 in OD, Round with Keyway (MPN DCDK44-1-1/4"-30MM-A). Key specifications — attr869742: RULAND MANUFACTURING; attr869741: Round with Keyway; attr869743: Aluminum; attr869746: Yes; attr869747: Stainless Steel; attr869761: Aluminum; attr869778: 2 with Center Spacer; attr869794: Inch to Metric Bore.
RULAND MANUFACTURING Disc Coupling: 1 1/2 in x 35 mm Bore Dia, 2 3/4 in OD, Round with Keyway (MPN DCDK44-1-1/2"-35MM-A). Key specifications — attr869742: RULAND MANUFACTURING; attr869741: Round with Keyway; attr869743: Aluminum; attr869746: Yes; attr869747: Stainless Steel; attr869761: Aluminum; attr869778: 2 with Center Spacer; attr869794: Inch to Metric Bore.
RULAND MANUFACTURING
RULAND MANUFACTURING Disc Coupling: 1 1/2 in x 35 mm Bore Dia, 2 3/4 in OD, Round with Keyway (MPN DCDK44-1-1/2"-35MM-A). Key specifications — attr869742: RULAND MANUFACTURING; attr869741: Round with Keyway; attr869743: Aluminum; attr869746: Yes; attr869747: Stainless Steel; attr869761: Aluminum; attr869778: 2 with Center Spacer; attr869794: Inch to Metric Bore.
RULAND MANUFACTURING Disc Coupling: 30 mm x 30 mm Bore Dia, 69.9 mm OD, Round with Keyway, Clamp On (MPN MDCDK70-30-30-A). Key specifications — attr869742: RULAND MANUFACTURING; attr869741: Round with Keyway; attr869743: Aluminum; attr869746: No; attr869747: Stainless Steel; attr869761: Aluminum; attr869778: 2 with Center Spacer; attr869794: Metric.
RULAND MANUFACTURING
RULAND MANUFACTURING Disc Coupling: 30 mm x 30 mm Bore Dia, 69.9 mm OD, Round with Keyway, Clamp On (MPN MDCDK70-30-30-A). Key specifications — attr869742: RULAND MANUFACTURING; attr869741: Round with Keyway; attr869743: Aluminum; attr869746: No; attr869747: Stainless Steel; attr869761: Aluminum; attr869778: 2 with Center Spacer; attr869794: Metric.
RULAND MANUFACTURING Disc Coupling: 45 mm x 40 mm Bore Dia, 79.4 mm OD, Round with Keyway, Clamp On (MPN MDCDK80-45-40-A). Key specifications — attr869742: RULAND MANUFACTURING; attr869741: Round with Keyway; attr869743: Aluminum; attr869746: Yes; attr869747: Stainless Steel; attr869761: Aluminum; attr869778: 2 with Center Spacer; attr869794: Metric.
RULAND MANUFACTURING
RULAND MANUFACTURING Disc Coupling: 45 mm x 40 mm Bore Dia, 79.4 mm OD, Round with Keyway, Clamp On (MPN MDCDK80-45-40-A). Key specifications — attr869742: RULAND MANUFACTURING; attr869741: Round with Keyway; attr869743: Aluminum; attr869746: Yes; attr869747: Stainless Steel; attr869761: Aluminum; attr869778: 2 with Center Spacer; attr869794: Metric.
RULAND MANUFACTURING Disc Coupling: 1 3/4 in x 30 mm Bore Dia, 3 1/8 in OD, Round with Keyway (MPN DCDK50-1-3/4"-30MM-A). Key specifications — attr869742: RULAND MANUFACTURING; attr869741: Round with Keyway; attr869743: Aluminum; attr869746: Yes; attr869747: Stainless Steel; attr869761: Aluminum; attr869778: 2 with Center Spacer; attr869794: Inch.
RULAND MANUFACTURING
RULAND MANUFACTURING Disc Coupling: 1 3/4 in x 30 mm Bore Dia, 3 1/8 in OD, Round with Keyway (MPN DCDK50-1-3/4"-30MM-A). Key specifications — attr869742: RULAND MANUFACTURING; attr869741: Round with Keyway; attr869743: Aluminum; attr869746: Yes; attr869747: Stainless Steel; attr869761: Aluminum; attr869778: 2 with Center Spacer; attr869794: Inch.
RULAND MANUFACTURING Disc Coupling: 35 mm x 35 mm Bore Dia, 69.9 mm OD, Round with Keyway, Clamp On (MPN MDCDK70-35-35-A). Key specifications — attr869742: RULAND MANUFACTURING; attr869741: Round with Keyway; attr869743: Aluminum; attr869746: No; attr869747: Stainless Steel; attr869761: Aluminum; attr869778: 2 with Center Spacer; attr869794: Metric.
RULAND MANUFACTURING
RULAND MANUFACTURING Disc Coupling: 35 mm x 35 mm Bore Dia, 69.9 mm OD, Round with Keyway, Clamp On (MPN MDCDK70-35-35-A). Key specifications — attr869742: RULAND MANUFACTURING; attr869741: Round with Keyway; attr869743: Aluminum; attr869746: No; attr869747: Stainless Steel; attr869761: Aluminum; attr869778: 2 with Center Spacer; attr869794: Metric.