14mm U-Groove POM Track Wheel Pulley with 625ZZ Bearing – Black
14mm U-Groove POM Track Wheel Pulley with 625ZZ Bearing – Black
14mm Black U-Groove Track Wheel Pulley – POM Plastic with 625ZZ Bearing
This compact and durable 14mm diameter U-groove track wheel pulley is built for smooth, reliable performance across a wide range of mechanical applications. Machined from high-strength POM (Polyoxymethylene) — a self-lubricating engineering plastic known for its rigidity and low friction — and fitted with a precision 625ZZ high-quality bearing steel core, this pulley delivers consistent motion with minimal wear.
Key Specifications
- Material: POM Polyoxymethylene (hard engineering plastic) with rubber-coated outer track
- Bearing Model: 625ZZ high-quality bearing steel
- Dimensions: 5 × 16 × 5 mm (inner diameter × outer diameter × width)
- Overall Wheel Diameter: 14 mm
- Groove Profile: U-shaped
- Color: Black
- Max Speed: Below 790 RPM
- Weight Bearing Capacity: Up to 77 kg
- Package Contents: 1 × Track Wheel Pulley
Why Choose This Track Wheel?
- High-Strength Construction: POM plastic is renowned for its excellent stiffness, dimensional stability, and resistance to abrasion — making it ideal for repeated mechanical use.
- Precision 625ZZ Bearing: The sealed steel bearing at the core ensures smooth rotation, reduces friction, and extends the service life of the pulley.
- Rubber-Coated Outer Ring: The rubber coating provides a secure grip on tracks, reduces vibration, and protects guide surfaces from scoring.
- U-Groove Design: The precisely formed U-shaped groove tracks securely on rails, wires, or ropes, preventing slippage during operation.
- Compact & Versatile: Small enough to fit into tight mechanical assemblies, yet rated for up to 77 kg load — delivering a strong performance-to-size ratio.
Common Applications
- Conveyor belt systems
- Sliding doors and window track guides
- 3D printer and CNC gantry carriages
- Bicycle and cable pulley assemblies
- Mobile viewing windows and display racks
- DIY mechanical projects and automation builds
Related Products You May Find Useful
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- 1PC 10g High Grade Silicon Grease Lubricant for O-Rings & Tubes — ideal for maintaining smooth bearing and pulley action.
- 3PCS Silicone Sealant Scraper Set – Multi-Functional Caulking Nozzle Tools — great for finishing mechanical installations.
- Adjustable Invisible Zipper Guide Presser Foot for Industrial Sewing Machines — another quality mechanical accessory for precision tasks.
Made in Mainland China.
Note: Due to manual measurement, please allow a tolerance of 1–3 mm. Monitor colour settings may slightly affect the appearance of images; the actual product may vary slightly from photos shown.
Learn more: OSHA guidance on hand and power tools
Frequently Asked Questions
Q: What material is the 14mm U-groove track wheel pulley made from?
A: The pulley body is made from POM (Polyoxymethylene), a high-strength engineering plastic valued for its hardness, low friction, and dimensional stability. The outer track features a rubber coating for improved grip and surface protection, and the inner bearing is a 625ZZ sealed steel bearing.
Q: What is the maximum load and speed rating for this pulley?
A: This 14mm track wheel pulley is rated for a maximum weight bearing of 77 kg and a maximum operating speed of below 790 RPM, making it suitable for low-to-medium speed mechanical applications.
Q: What applications is this U-groove pulley suitable for?
A: This pulley is widely used in conveyor belt systems, sliding doors, window track guides, 3D printers, CNC machines, bicycle cable assemblies, and general DIY mechanical or automation projects. The U-groove profile ensures secure tracking on rails and cables.
Q: Is the 625ZZ bearing replaceable or pre-installed?
A: The 625ZZ bearing is pre-installed within the POM pulley body. It is a standard bearing size, so if ever needed, a replacement 625ZZ bearing can be sourced easily from most bearing or hardware suppliers.
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.