DHS Short Type Aluminum Oldham Coupling (Setscrew Style)

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DHS Short Type Aluminum Oldham Shaft Coupling | Setscrew Style Oldham Coupling for Servo & Stepper Motors

Model Number
Check below, custom

Product Description

DHS Short Type Aluminum Oldham Flexible Shaft Coupling (Setscrew Style)

Compact Sliding Disc Coupling with High-Strength Aluminum Hubs & PA66 Nylon Spacer

The DHS Short-Type Setscrew Style Oldham Coupling is a high-precision, space-saving flexible coupling engineered for motion control applications requiring high torsional stiffness, compact structure, and electrical insulation. Constructed with high-strength anodized aluminum alloy hubs and a wear-resistant imported PA66 nylon center spacer block, the DHS series utilizes a sliding disc structure to compensate for significant radial and angular misalignments while maintaining low rotational inertia. Featuring a detachable design with setscrew (grub screw) shaft locking, it is a highly economical and reliable coupling solution for stepper motors, servo drives, and precision industrial automation systems.

Key Advantages & Features

Compact & Short-Type Structure: Shortened overall length design allows seamless integration into space-restricted equipment and compact motor-driven assemblies.
High-Strength Aluminum Alloy Hubs: Precision-machined aluminum alloy hubs with an anodized surface finish provide lightweight operation, reduced rotational inertia, and excellent corrosion resistance.
Imported PA66 Nylon Center Spacer: Features an electrically insulating, oil-resistant, and wear-resistant PA66 slider block that effectively damps operational vibration and prevents current passage between shafts.
High Radial Misalignment Compensation: The Oldham sliding disc mechanism efficiently accommodates significant radial deviations and angular misalignment without inducing high bearing reaction loads.
Setscrew (Grub Screw) Fastening: Simple positioning screw fixation enables quick assembly, easy disassembly, and cost-effective installation for standard keyless motor shafts.
High Stiffness & High Sensitivity: Simple, high-rigidity structure with zero backlash characteristics ensures quick torque response and precise position control.

Technical Specifications

Parameter	Specification Details
Product Name / Model	DHS Short Type Setscrew Style Oldham Coupling Series
Hub Material	High-Strength Anodized Aluminum Alloy (Custom materials available)
Center Disc / Spacer Material	Imported PA66 Nylon (Multiple color options available)
Surface Treatment	Anodized Surface Coating
Fastening / Locking Type	Setscrew / Grub Screw Fixing (Detachable 3-Piece Design)
Alignment Compensation	High Radial Misalignment & Angular Offset Capacity
Electrical Insulation	Fully Insulated Center Spacer (Prevents current leakage)
Environmental Resistance	Oil Resistant, Corrosion Resistant, Maintenance-Free
Customization Options	Custom Bore Sizes, Keyways, Special Materials (OEM/ODM Supported)

Applications & Industries Served

The DHS short setscrew Oldham coupling is specifically designed for high-sensitivity motion control systems and space-conscious automation equipment, including:

Stepper & Servo Drives: Compact stepping motors, AC/DC servo systems, and rotary encoders.
Precision Automation Equipment: Semiconductor processing tools, 3D printers, pick-and-place robotics, and packaging automation.
Medical & Optical Instruments: Laboratory analysis equipment, medical positioning drives, and optical inspection stages.
Light CNC & Machine Tools: Mini CNC engravers, automated indexing tables, and motorized linear actuators.

Customization & OEM Manufacturing Solutions

At ApexCoupling, we hold extensive inventories of semi-finished components to support rapid delivery and custom shaft coupling requirements.

Available Customization Options:

Custom metric and inch inner bore sizing for specific motor shaft tolerances.
Alternative body materials (e.g., stainless steel for washdown or food-grade environments).
Custom center slider block colors and shore hardness options.
Paper and PDF electronic selection catalogs available upon request.

For technical selection support, catalog requests, or volume discount quotes, please contact our sales engineering team with your shaft diameters (d1 & d2) and operating requirements.