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RULAND MANUFACTURING Motion Control Coupling: 3/8 in x 3/8 in Bore Dia, 1 5/16 in OD - Double Disc Couplings for Round Shafts
RULAND MANUFACTURINGDouble Disc Couplings for Round Shafts

RULAND MANUFACTURING Motion Control Coupling: 3/8 in x 3/8 in Bore Dia, 1 5/16 in OD

The RULAND MANUFACTURING Motion Control Coupling (MPN DCD21-6-6-A) is a double disc coupling for round shafts with a 3/8 in x 3/8 in bore diameter and 1 5/16 in OD. It features an aluminum hub and center spacer with…

SKU 3G-OTH-145274

Brand
RULAND MANUFACTURING
Item
Motion Control Coupling: 3/8 in x 3/8 in Bore Dia, 1 5/16 in OD
Category
Double Disc Couplings for Round Shafts
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Technical Specifications

RULAND MANUFACTURING
Manufacturer Part Number
DCD21-6-6-A
Type
Round
OD
1 5/16 in
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RULAND MANUFACTURING Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The RULAND MANUFACTURING Motion Control Coupling (MPN DCD21-6-6-A) is a double disc coupling for round shafts with a 3/8 in x 3/8 in bore diameter and 1 5/16 in OD. It features an aluminum hub and center spacer with stainless steel disc packs, and is designed for inch-sized shafts with same bore dimensions. The coupling has a 2 with center spacer configuration and is not keyed.

Frequently Asked Questions

What is a RULAND MANUFACTURING DCD21-6-6-A double disc coupling used for?

The RULAND MANUFACTURING DCD21-6-6-A double disc coupling is used in motion control applications to connect two round shafts with 3/8 in bores. It compensates for misalignment while transmitting torque smoothly, making it ideal for precision positioning systems, encoders, and servo drives.

What are the specifications of the RULAND MANUFACTURING DCD21-6-6-A coupling?

The RULAND MANUFACTURING DCD21-6-6-A coupling has a 3/8 in x 3/8 in bore diameter, 1 5/16 in OD, and a round aluminum hub with a center spacer. It uses stainless steel disc packs, is not keyed, and is designed for inch-sized shafts with same bore dimensions.

Where to buy a RULAND MANUFACTURING DCD21-6-6-A coupling worldwide?

3G Electric supplies the RULAND MANUFACTURING DCD21-6-6-A double disc coupling worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this motion control coupling to your facility, regardless of location.

How to select the right RULAND MANUFACTURING double disc coupling for round shafts?

To select the right RULAND MANUFACTURING double disc coupling, match the bore diameter to your shaft size (e.g., 3/8 in), confirm the OD fits your space, and choose between keyed or non-keyed designs. The DCD21-6-6-A is non-keyed and suits inch-sized round shafts with same bore dimensions.

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 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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RULAND MANUFACTURING Motion Control Coupling: 3/4 in x 5/8 in Bore Dia, 1 5/8 in OD, Round, Clamp On (MPN DCD26-12-10-A). Key specifications — attr869742: RULAND MANUFACTURING; attr869741: Round; attr869743: Aluminum; attr869746: Yes; attr869747: Stainless Steel; attr869761: Aluminum; attr869778: 2 with Center Spacer; attr869794: Inch.
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RULAND MANUFACTURING Motion Control Coupling: 3/4 in x 1/2 in Bore Dia, 1 5/8 in OD, Round, Clamp On (MPN DCD26-12-8-A). Key specifications — attr869742: RULAND MANUFACTURING; attr869741: Round; attr869743: Aluminum; attr869746: Yes; attr869747: Stainless Steel; attr869761: Aluminum; attr869778: 2 with Center Spacer; attr869794: Inch.

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RULAND MANUFACTURING Motion Control Coupling: 14 mm x 12 mm Bore Dia, 41.3 mm OD, Round, Clamp On (MPN MDCD41-14-12-A). Key specifications — attr869742: RULAND MANUFACTURING; attr869741: Round; attr869743: Aluminum; attr869746: Yes; attr869747: Stainless Steel; attr869761: Aluminum; attr869778: 2 with Center Spacer; attr869794: Metric.
RULAND MANUFACTURING Motion Control Coupling: 10 mm x 8 mm Bore Dia, 25.4 mm OD, Round, Clamp On (MPN MDCD25-10-8-A). Key specifications — attr869742: RULAND MANUFACTURING; attr869741: Round; attr869743: Aluminum; attr869746: Yes; attr869747: Stainless Steel; attr869761: Aluminum; attr869778: 2 with Center Spacer; attr869794: Metric.
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RULAND MANUFACTURING Motion Control Coupling: 10 mm x 8 mm Bore Dia, 25.4 mm OD, Round, Clamp On (MPN MDCD25-10-8-A). Key specifications — attr869742: RULAND MANUFACTURING; attr869741: Round; attr869743: Aluminum; attr869746: Yes; attr869747: Stainless Steel; attr869761: Aluminum; attr869778: 2 with Center Spacer; attr869794: Metric.
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RULAND MANUFACTURING
RULAND MANUFACTURING Motion Control Coupling: 3/4 in x 3/4 in Bore Dia, 1 5/8 in OD, Round, Clamp On (MPN DCD26-12-12-A). Key specifications — attr869742: RULAND MANUFACTURING; attr869741: Round; attr869743: Aluminum; attr869746: No; attr869747: Stainless Steel; attr869761: Aluminum; attr869778: 2 with Center Spacer; attr869794: Inch.