Precision Machined 6061-T6 Aluminum Fixed Pulley with PU Cladding, Precision Tolerance Guide Wheel for Winch & Lifting Equipment

1.Description

This fixed pulley adopts 6061-T6 aerospace-grade aluminum alloy as the internal load-bearing substrate, fully wrapped with high-wear-resistant yellow polyurethane cladding. The integrated structure balances structural rigidity and operational cushioning performance. With an overall outer diameter of Φ260mm and 5 evenly distributed Φ45 through mounting holes, it is perfectly fitted for fixed guiding assembly of winches, lifting machinery and conveying equipment. The central shaft bore is precision machined with tight tolerance for high-precision fitting with drive shafts.

The aluminum base undergoes hard anodizing treatment with film thickness controlled between 0.02~0.04mm and surface hardness HV＞200, greatly improving wear resistance, corrosion resistance and anti-deformation performance. The outer PU layer is 10±0.02mm thick, which cushions friction impact of steel wire ropes, reduces running noise and vibration, and prevents wire rope breakage caused by direct hard contact with metal.

All machining follows GB/T 1804-m general dimensional tolerance; sharp edges are fully deburred and rounded. Unspecified dimensions are manufactured strictly according to the 3D model to guarantee high assembly consistency. It is widely applied for wire rope guiding, tension limiting and direction switching in lifting winches, mining conveyors, construction machinery, port hoisting systems and automatic production lines.

2.Parameter

3.Advantage

1.High-strength Aluminum Alloy Substrate

6061-T6 aluminum alloy features outstanding mechanical performance, light weight and high structural rigidity, resistant to deformation and cracking under heavy loads. Hard anodizing enhances rust-proof and wear-resistant properties for prolonged service life.

2.Cushioning & Protective PU Cladding

Tear-resistant yellow polyurethane outer layer isolates hard friction between steel rope and metal pulley, reduces wire rope abrasion, lowers operational noise and vibration, effectively prevents slipping and scratching of wire ropes during high-speed operation.

3.Precision Machining with Strict Tolerance

Central bore, positioning steps and mounting holes are machined per GB/T 1804-m standard, ensuring excellent coaxiality during assembly and stable rotation without eccentric shaking.

4.Standardized Convenient Mounting Structure

5 evenly distributed through mounting holes bear load uniformly, compatible with most winch and lifting brackets for easy installation and stable fixation.

5.Refined Finishing Process

All sharp edges are deburred and rounded to avoid scratching wire ropes; dimensions are fully consistent with the 3D model to guarantee stable quality in mass production.

4.Application

1.Wire rope guiding fixed pulley matched with lifting winches and Lebus drums;

2.Wire rope direction change and tension guiding for truck-mounted cranes and construction lifting equipment;

3.Rope limiting & guiding for port hoisting and mining conveying machinery;

4.Rope tensioning and direction switching transmission for automatic assembly lines and material conveying systems;

5.Auxiliary guiding for small lifting platforms, auxiliary traction and garden lifting equipment.