Technical Manual for Elevator Transmission Wheels
SEO: Traction Wheel, Friction Wheel, Step Wheel, Pulley , elevator transmission wheel

1. Product Introduction
This series of wheel parts are core transmission components for elevators and escalators, including traction wheels, friction wheels, step wheels and pulleys. All products are manufactured with high-precision processing technology and wear-resistant materials in compliance with international elevator industry standards. Featuring stable transmission, strong load capacity and long service life, they are key wearing parts to ensure normal start, stop and operation of elevators and escalators. The products are compatible with mainstream brands such as OTIS, Schindler and STEP. They are widely used for equipment maintenance, complete machine supporting and old equipment renovation in shopping malls, metro stations, airports, office buildings and residential buildings. They are also essential stock products for global elevator spare parts distributors and maintenance companies.

2. Product Classification & Key Features
•Traction Wheel
Made of ductile iron or cast steel with precisely quenched grooves. High hardness, anti-slip and wear-resistant. Smooth surface protects steel wire ropes. High dynamic balance, low noise and no vibration during operation. Excellent fatigue resistance and load-bearing capacity, no deformation under long-term heavy load.
•Friction Wheel
Composite structure of wear-resistant rubber and metal hub with stable and uniform friction. Good shock absorption and noise reduction performance. Anti-aging, anti-extrusion and anti-debonding. High dimensional accuracy, easy to install and suitable for various friction transmission systems.
•Step Wheel
Combined with high wear-resistant engineering nylon and precision bearing. Light weight and flexible rotation. Dustproof and waterproof design for harsh escalator operating environment. Impact resistance and low rotation resistance to extend service life of steps.
Pulley Integrally cast with high-quality cast iron. Standard and symmetrical grooves ensure good transmission synchronization. Anti-rust surface treatment prevents stuck caused by corrosion. High structural strength and excellent dynamic balance, compatible with V-belts and timing belts.

3. General Technical Parameters
• Main Material: Ductile iron, cast steel, wear-resistant engineering nylon, rubber composite (classified by product type)
• Machining Accuracy: International elevator standard, qualified dynamic balance, tiny radial runout
• Operating Temperature: -20℃ ~ +70℃, suitable for most machine rooms and outdoor escalator environments worldwide
• Protection Class: Dustproof and splash-proof, meet on-site operation requirements of elevators and escalators
• Specifications: Full range of standard sizes for mainstream brands, non-standard customization available

4. Main Functions
• Power Transmission: Transmit power from traction machines and motors to realize continuous mechanical operation.
• Guide & Position: Guide and limit steel wire ropes, steps and drive belts to prevent deviation and derailment.
• Load & Buffering: Bear operating load and reduce running noise and vibration with shock-absorbing structure.
• Direction Conversion: Change power transmission direction to match the overall mechanical structure of elevators and escalators.

5. Operation & Installation Notes
• Inspect appearance before installation. Do not use products with cracks, deformation, peeling or debonding.
• Strictly follow original specifications and dimensions. Mixing different types of wheels is prohibited to avoid safety risks.
• Ensure good concentricity and levelness during installation. Tighten screws evenly to prevent eccentric wear and vibration.
• Regularly apply grease for bearing-equipped wheels, and clean dirt and oil on wheel surface in time.
• Stop operation and replace parts immediately in case of severe wear, cracks, abnormal noise or stuck rotation. Running with faults is forbidden.
• Store products in dry and ventilated warehouse with anti-rust and dustproof measures. Avoid heavy pressure and deformation.

Traction Sheave: inner diameter & outer diameter, sheave thickness, groove dimension, number of grooves, mounting hole dimension



Friction Wheel: inner diameter & outer diameter, thickness, tapped holes or through holes, hole diameter




Step Wheel: inner diameter & outer diameter, thickness, bearing model




Pulley: outer diameter, thickness, bearing model, number of grooves


 
6. Supply Service
We provide full-range in-stock traction wheels, friction wheels, step wheels and pulleys for mainstream elevator and escalator brands at home and abroad. 1 piece MOQ is supported with fast delivery. We also accept bulk orders for complete machine matching and non-standard size customization. All products are strictly inspected before delivery. We can supply one-stop supporting parts including steel wire ropes, bearings and drive belts. Welcome global customers to inquire for samples, detailed specifications and wholesale prices. We provide professional international shipping and after-sales service.