Custom Multi-Groove Drive Pulley for Automotive & Industrial Belts

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Custom Multi-Groove Drive Pulley for Automotive & Industrial Belts

This high-precision drive pulley is a heavy-duty, machined metal component designed for transmitting rotational power via V-belts or multi-groove belts in automotive engines, industrial machinery, and mechanical drive systems. Manufactured from high-grade black-anodized aluminum alloy (or steel), it features a robust stepped multi-groove design and precision bolt holes for secure mounting, ensuring efficient power transfer, low vibration, and long service life. As a professional custom precision machining and auto parts supplier, we offer full OEM/ODM solutions, supporting custom groove counts, bore sizes, and material specifications to meet your specific drive system performance requirements.

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Core Design & Structural Advantages

Multi-Groove Ribbed Structure: The concentric, multi-layer ribbed design (multi-V-belt groove) accommodates multiple belts simultaneously, increasing power transmission capacity and reducing slippage for high-torque applications.
Precision Bolt Hole Pattern: The evenly spaced mounting holes ensure stable, coaxial mounting on shafts or hubs, minimizing runout and balancing issues for smooth high-speed rotation.
Optimized Side Profile: The stepped, cylindrical structure with a smooth outer surface and internal step ensures precise belt alignment, preventing belt misalignment, wear, and premature failure.
High-Strength Material Construction: Machined from dense, high-grade aluminum alloy or steel, the pulley delivers exceptional strength, heat resistance, and wear resistance, suitable for continuous operation in harsh environments.
Anodized/Black Oxide Surface Treatment: The black finish provides excellent corrosion resistance, scratch protection, and thermal dissipation, ideal for automotive engine compartments and industrial settings.Lightweight yet Durable: Aluminum alloy construction reduces rotational mass (inertia), improving energy efficiency while maintaining the structural rigidity to withstand heavy loads and belt tension.

Core Technical Parameters & Tolerance Table

Parameter Category	Standard Specification	Customization Range	Tolerance Requirement
Core Manufacturing Process	CNC Turning + Milling + Anodizing	Precision Casting / Grinding Optional	Concentricity: ≤0.02mm
Base Material	6061-T6 / 7075 Aluminum Alloy	Steel, Stainless Steel, Cast Iron	Hardness: HB 90-120 (Aluminum)
Surface Finish	Black Anodized / Oxidation	Chrome Plating, Powder Coating	Surface Roughness: Ra ≤1.6μm
Number of Grooves	6-Groove (Standard)	2/4/8/12 Grooves Customizable	Groove Width Tolerance: ±0.05mm
Inner Bore Size	Custom Machined Bore (e.g., φ25mm)	Custom Per Shaft Size	Bore Tolerance: H7/H8
Mounting Hole	4×Counterbore Holes (Custom)	Custom Hole Count & Spacing	Hole Position Tolerance: ±0.05mm
Dynamic Balance Grade	G2.5 (High Precision)	Standard G6.3	Runout: ≤0.03mm
Minimum Order Quantity	500pcs	Small-Batch Trial Supported	Lead Time: 7-15 Working Days

Material Selection & Performance Assurance

Material Type	Core Features	Ideal Application Scenarios
6061-T6 Aluminum Alloy	Lightweight, excellent machinability, good corrosion resistance	General industrial machinery, automotive accessories, food-grade equipment
7075-T6 Aluminum Alloy	Ultra-high strength, hardness, and wear resistance	Heavy-duty industrial equipment, high-torque automotive transmissions
Carbon Steel	High load capacity, low cost, heat resistance	Heavy machinery, agricultural equipment, and high-load applications
Stainless Steel	Corrosion resistance, hygiene, durability	Food processing machinery, marine equipment, medical devices

Application Scenarios

Automotive Industry: Engine crankshaft pulleys, air conditioning (AC) compressor pulleys, power steering pulleys, and fan belt pulleys.
Industrial Machinery: Motor drive pulleys, pump pulleys, conveyor belt systems, and generator drive units.
Agricultural Equipment: Tractor engine pulleys and harvesting machinery drive components.
Marine & Outdoor Equipment: Boat engine pulleys and industrial water pump drive assemblies.

Customization & Service Support

Full Customization: We support 1:1 mold development based on customer 3D/2D drawings or samples, with free DFM (Design for Manufacturability) analysis to optimize port layout, flow channels, and structural design.
Rigorous Quality Control: Our production follows ISO 9001 and IATF 16949 quality management systems, with 100% dimensional inspection, pressure leak testing, and material performance testing to ensure zero defects.
Comprehensive Post-Processing: Offers secondary operations including ultrasonic welding, insert pressing, surface coating, and custom assembly to deliver fully finished, ready-to-install components.
Global Supply Chain Support: Provides flexible packaging, international logistics (sea/air/express), and dedicated customer service to ensure seamless procurement for global automotive and industrial suppliers.

Packaging & Delivery

Packaging: Anti-rust plastic bags, foam lining, and sturdy master cartons to prevent damage during transit. Custom packaging available for OEM production lines.
Lead Time: Mold development: 15-25 working days; Mass production: 7-15 working days (adjustable based on order quantity).
Payment Terms: T/T, L/C, and other standard international trade terms supported.
Logistics Options: DHL, FedEx, sea freight, air freight, and other global shipping solutions available.