4PCS Double Split Shaft Collars Set Screw 20x40x15mm Steel
4PCS Double Split Shaft Collars Set Screw 20x40x15mm Steel
4PCS Double Split Shaft Collars – Oxide Set Screw Style | 20×40×15mm
Keep your shafts locked in place with these precision-engineered Double Split Shaft Collars. Designed with a hex socket set screw mechanism, this 4-piece kit delivers a firm, reliable grip on 20mm diameter shafts — ideal for machinery, mechanical assemblies, robotics, and industrial equipment maintenance.
Made in Mainland China.
Key Features
- Durable Steel Construction: Crafted from high-quality oxide-treated steel for excellent wear resistance and long-lasting performance in demanding environments.
- Secure Set Screw Fastening: The hex socket set screw design clamps firmly onto the shaft, eliminating unwanted slippage or axial movement during operation.
- Double Split Design: The double split configuration allows for easy, tool-friendly installation and precise tightening without damaging the shaft surface.
- Versatile Fit: Inner diameter 20mm, outer diameter 40mm, width 15mm — compatible with a wide variety of industrial and DIY mechanical applications.
- Precision Dimensions: Meticulously machined to tight tolerances for an accurate, consistent fit every time.
- Black Oxide Finish: Provides corrosion resistance and a clean, professional appearance.
Specifications
| Material | Steel (Black Oxide Finish) |
| Style | Double Split Set Screw |
| Drive Style | Hex Socket |
| Inner Diameter | 20mm |
| Outer Diameter | 40mm |
| Width | 15mm |
| Colour | Black |
| Quantity | 4 Pieces |
| Country of Origin | Mainland China |
What's in the Box?
- 4 × Double Split Shaft Collars (Set Screw Style)
Note: Due to lighting and display differences, the colour of the item may vary slightly from images. Measurement tolerance is ±1–3mm.
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Frequently Asked Questions
Q: What size shaft do these double split shaft collars fit?
A: These shaft collars are designed for a 20mm inner diameter shaft, with an outer diameter of 40mm and a width of 15mm. Always verify your shaft dimensions before ordering to ensure a proper fit.
Q: What is the advantage of a double split design over a single split shaft collar?
A: A double split shaft collar distributes clamping force more evenly around the shaft compared to a single split design. This results in a more secure hold, reduces the risk of shaft deformation, and makes installation and adjustment easier — particularly useful in precision mechanical assemblies.
Q: What tool is needed to tighten the set screws on these shaft collars?
A: These shaft collars use a hex socket (Allen key / hex wrench) drive style for the set screws. A standard hex/Allen key of the appropriate size is required for tightening and loosening during installation or adjustment.
Q: Are these shaft collars suitable for outdoor or corrosive environments?
A: The black oxide finish provides a basic level of corrosion resistance for general use. For highly corrosive or outdoor environments with significant moisture exposure, additional protective measures such as grease or a sealant may be recommended.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.