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Shaft collars are essential components for securing shafts in place, preventing axial movement. For applications in lighting fixtures, whether for DIY projects or professional installations, selecting the correct clamp-on shaft collar is crucial for safety and functionality. The right collar ensures a stable connection, preventing vibrations and maintaining the integrity of your lighting setup.
Package Content: 4-Pieces Double Split Clamp-On Shaft Collar with 8Pcs Set Screw.
CARBON STEEL WITH Black Oxide Coating - High-quality carbon steel offers superior strength, resulting in better axial and radial support. And with Black Oxide Coating, they have increased durability, weldability, and corrosion resistance
CARBON STEEL WITH Black Oxide Coating - High-quality carbon steel offers superior strength, resulting in better axial and radial support. And with Black Oxide Coating, they have increased durability, weldability, and corrosion resistance
CARBON STEEL WITH Black Oxide Coating - High-quality carbon steel offers superior strength, resulting in better axial and radial support. And with Black Oxide Coating, they have increased durability, weldability, and corrosion resistance
Package Content: 2-Pieces Double Split Clamp-On Shaft Collar with 2Pcs Set Screw.
CARBON STEEL WITH Black Oxide Coating - High-quality carbon steel offers superior strength, resulting in better axial and radial support. And with Black Oxide Coating, they have increased durability, weldability, and corrosion resistance
Package Content: 2-Pieces Double Split Clamp-On Shaft Collar with 4Pcs Set Screw.
CARBON STEEL WITH Black Oxide Coating - High-quality carbon steel offers superior strength, resulting in better axial and radial support. And with Black Oxide Coating, they have increased durability, weldability, and corrosion resistance
Package Content: 4-Pieces Double Split Clamp-On Shaft Collar with 2Pcs Set Screw.
CARBON STEEL WITH Black Oxide Coating - High-quality carbon steel offers superior strength, resulting in better axial and radial support. And with Black Oxide Coating, they have increased durability, weldability, and corrosion resistance
Package Content: 4-Pieces Double Split Clamp-On Shaft Collar with 2Pcs Set Screw.
CARBON STEEL WITH Black Oxide Coating - High-quality carbon steel offers superior strength, resulting in better axial and radial support. And with Black Oxide Coating, they have increased durability, weldability, and corrosion resistance
Made of High quality 304 Stainless Steel, better weld ability and resistance to corrosion than the regular steel.
The two-piece design makes installation simple. The split collar can be disassembled and reassembled anywhere along the shaft without needing to remove other components or having access to the ends of the shaft.
Suitable for gearbox assemblies, motor bases, machine tools, drive shafts, agricultural implements, medical equipment, and paper and steel mill equipment, the automotive industry, the manufacturing industry, the hobby craft industry and many more.
These two-piece stainless steel split shaft collars have an inside diameter of 1.00 inches, an outside diameter of 1.75 inches and a thickness of 0.5 inches. This pack includes 1 split collar and its corresponding screws.
Made in the USA by Coastal Machine Works. We strive to deliver high quality and precise collars. Every collar has its edges and holes deburred and its corresponding inside diameter bore engraved on its front face for easy identification.
Made from 303 stainless steel, these shaft collars have excellent corrosion resistance and are ideal for wet environments or when corrosive chemicals are present.
The two-piece design makes installation simple. The split collar can be disassembled and reassembled anywhere along the shaft without needing to remove other components or having access to the ends of the shaft.
This article is part of our complete guide Lighting — browse all our comparisons and buying guides.
Last update on 2026-10-16 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Clamp-On Shaft Collars
Understanding Clamp-On Shaft Collars
Clamp-on shaft collars are designed to grip a shaft without damaging it, unlike set-screw collars. They achieve this by clamping around the shaft, distributing pressure evenly. This makes them ideal for softer materials or when appearance is important.
Key Features to Consider
Material: Collars come in various materials like aluminum, steel, and plastic. Aluminum offers a good balance of strength and weight, while steel provides maximum durability. Plastic is suitable for lighter loads and corrosive environments.
Size and Fit: Ensure the inner diameter of the collar matches the shaft's diameter precisely. A snug fit is essential for effective clamping. Check the collar's width and outer diameter to ensure it fits within your fixture's design constraints.
Clamping Mechanism: Most clamp-on collars use one or two set screws to tighten. For lighting applications, consider collars with a smooth, rounded internal surface to avoid marring the shaft. Some advanced designs offer single-piece clamping for uniform pressure.
Corrosion Resistance: If your lighting will be used in humid or outdoor conditions, opt for collars made from corrosion-resistant materials like stainless steel or anodized aluminum.
Applications in Lighting
In lighting, shaft collars can be used to:
Secure rotating or adjustable arms on lamps.
Fix decorative elements or diffusers to a central shaft.
Provide a stable mounting point for LED strips or other light sources on a shaft.
Prevent movement in dimmer controls or switches mounted on a shaft.
Choosing the right collar ensures your lighting fixture operates smoothly and safely, maintaining its intended aesthetic and functionality.
Frequently Asked Questions
What is the difference between a clamp-on and a set-screw shaft collar?
A clamp-on collar grips the shaft by tightening its outer body around it, distributing pressure evenly. A set-screw collar uses a screw that presses directly onto the shaft, which can potentially damage softer materials.
Can I use a shaft collar on a hollow shaft?
Generally, clamp-on shaft collars are designed for solid shafts. For hollow shafts, you might need specialized collars or inserts to ensure a secure grip, as a standard clamp-on collar might crush the shaft.
How do I determine the correct size shaft collar I need?
Measure the outer diameter of the shaft you need to secure accurately. The inner diameter of the shaft collar should match this measurement precisely for a secure fit. Ensure the collar's clamping mechanism can accommodate the shaft's diameter.
Are there shaft collars suitable for outdoor lighting applications?
Yes, for outdoor use, look for collars made from corrosion-resistant materials such as stainless steel or anodized aluminum. These materials will withstand moisture and environmental exposure better than standard steel or plastic.
Will a shaft collar damage my shaft?
Clamp-on shaft collars are designed to minimize shaft damage by distributing clamping force. However, overtightening or using a collar on a very soft shaft material can still cause minor marring.
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