Pulley

Pulley is a grooved wheel on an axle, used to redirect rope/cable tension, providing mechanical advantage to reduce lifting force. It can be single for force redirection or in systems (block and tackle) to multiply efficiency, fundamental in construction for heavy lifting and machinery for power transmission via rotational mechanics.

 

Various Groove Types Available:

• U-Groove Pulley: Rounded, even force distribution, low belt wear.
• V-Groove Pulley: Trapezoidal groove, high friction, prevents slippage.
• H-Groove Pulley:Narrower/deeper than V-groove, handles higher loads in compact spaces.
• Timing Pulley (Toothed Groove): Teeth matching belt profiles, zero slippage, precise motion control.
• Flat-Groove Pulley: Smooth, flat contact surface, low noise, minimal belt wear.
• Multi-Groove Pulley: Multiple parallel V-grooves, compact high-power transmission.

 

Materials:

• Aluminium: Lightweight, corrosion-resistant, moderate strength.
• Steel: High-strength carbon steel or alloy steel for heavy-duty applications (cranes, industrial machinery).
• Stainless steel: Corrosion-resistant in harsh environments (chemical plants, marine settings).
• Nylon/ POM: Low friction, non-marking, and quiet operation (suitable for food processing, medical equipment).
• Cast Iron: Heavy-duty pulleys for high-torque industrial applications (mining, construction).

 

Key Features:

• High Strength: During operation, pulleys bear the weight of the load, requiring sufficient strength to resist loads and ensure long-term safe use.
• Low Friction Coefficient: To reduce energy loss, the pulley material should have a low friction coefficient to improve transmission efficiency.
• Impact Resistance: During crane operation, pulleys may experience shocks.
• Precision: Pulley parameters such as diameter, roundness, and parallelism must meet certain precision standards to ensure smooth transmission.
• Surface Quality: The pulley surface should be smooth and free of cracks, sand holes, and other defects to minimize friction resistance.
• Power Transmission: Drive pulleys transfer rotational force in machinery (e.g., automotive alternators, conveyor belts).

 

Support Customization:

• Quality assurance.
• Design drawings within 24 hours.
• Concentricity within 0.05mm.
• Bore tolerance within H7 range.

 

Simple Structure:

Easy to install, easy to assemble and disassemble.

 

Application Scope:

Pulleys are widely applied to lift, move loads, or transmit power. In construction, cranes use them to hoist heavy materials via pulley systems for mechanical advantage. Industrial conveyor belts rely on pulleys to drive continuous material transport in factories. Automotive engines use drive pulleys for accessories like alternators. Fitness equipment employs pulleys in cable machines for resistance adjustment. Elevators use large pulleys with counterweights for smooth vertical movement, while they also function in sailing for sail control and window blinds for easy operation.

 

Logistics service advantages:

• Fast Delivery.
• Precise delivery: Cooperating with multiple well-known logistics companies, we have rich delivery experience and can achieve precise delivery across the country, even in remote areas.
• Safe transportation: Professional shockproof packaging materials, such as high-strength cartons and shockproof foam, are used to ensure that the synchronous wheels are not damaged during transportation.