HAWEN as a leading manufacturer and supplier offers the Bored to Size Timing Pulley with high precision. Engineered from 45# carbon steel, 7075 aluminum alloy, or 1215 free-cutting steel, our drive components ensure zero slip, 98% efficiency, and high inner bore tolerance down to ≤0.008mm.
HAWEN is a high-tech manufacturer and global supplier specializing in the Bored to Size Timing Pulley line. Built for 3C testing, CNC tools, and solar tracking, each component features smooth tooth meshing, low noise, and strict ROHS/REACH compliance. Backed by 120 CNC units, IATF16949 certification, and a monthly capacity of 500,000 units, we deliver maximum reliability for long-term power transmission.
Dimensional Specifications & Material Options
Precision drive setups require exact machining profiles and dependable structural strength. Implementing a Bored to Size Timing Pulley ensures efficient power delivery across high-speed and synchronous industrial applications.
Product Name
Material
Dimension
Surface Treatment
Environmental Standard
Processing Requirement
Application Field
Machining Accuracy
Customer Base
Market Share in China
Remarks
Iron Timing Pulley
45# Carbon Steel
Φ66.29×22.61
Black Oxidation
Compliant with ROHS, REACH
Mechanical Machining
Electric Motors
≤0.013mm
Nidec, Midea, Haier
40%
Customizable per drawings
Aluminum Alloy Timing Pulley
7075 Aluminum Alloy
Φ66.29×22.61
Anodization
Compliant with ROHS, REACH
Mechanical Machining
Electric Motors
≤0.013mm
Nidec, Midea, Haier
-
Customizable per drawings
Iron Timing Pulley
1215 Free-Cutting Steel
-
Zinc Plating
Compliant with ROHS, REACH
Mechanical Machining
Electric Motors
≤0.008mm
Nidec, Midea, Haier
-
Customizable per drawings
Performance Benchmarks & Tolerances
Maintaining strict manufacturing tolerances keeps synchronous drives running smoothly under constant loads. Choosing a Bored to Size Timing Pulley with refined tooth profiles reduces vibration and prevents early drive component wear.
Main Quality Characteristics
Core Technical Indicators
GB/T 37205-2018 Standard
Industry / Customer Standard
HAWEN Standard
Inner Bore Stability
Inner Bore Tolerance
-
≤0.013mm
≤0.008mm
Tooth Profile Compatibility
Tooth Profile Width
≤0.1mm
≤0.1mm
≤0.05mm
Transmission Precision & Service Life
Tooth Profile Runout
-
≤0.15mm
≤0.05mm
Service Life (Iron)
Corrosion Resistance (Neutral Salt Spray Test)
24h
24h
48h
Service Life (Aluminum Alloy)
Corrosion Resistance (Neutral Salt Spray Test)
72h
72h
96h
Environmental Friendliness
Restriction of Hazardous Substances
-
Compliant with EU Standards
Compliant with EU Standards
Noise Reduction
Tooth Profile Runout
-
≤0.03mm
≤0.02mm
Material Characteristics & Structural Capabilities
45# Carbon Steel Properties
Medium carbon steel featuring 0.42% to 0.50% carbon content provides solid tensile strength (≥600 MPa) and yield strength (≥355 MPa). With a density of 7.85 g/cm³, it includes 0.50%-0.80% manganese and 0.17%-0.37% silicon. Quenching at 840°C and tempering between 560-600°C achieves a hardness range of HRC 22-34 to resist heavy mechanical stress.
7075 Aluminum Alloy Specifications
Al-Zn-Mg-Cu ultra-high strength aluminum alloy contains 5.1%-6.1% zinc, 2.1%-2.9% magnesium, 1.2%-2.0% copper, and trace elements like 0.18%-0.28% chromium. In T6 temper, tensile strength reaches up to 572 MPa, yield strength reaches ≥495 MPa, and hardness reaches 175-200 HB, making it ideal for lightweight drive applications.
1215 Free-Cutting Steel Efficiency
Designed for fast CNC machining, 1215 steel enables smooth turning and high surface quality. Integrating this alloy into a Bored to Size Timing Pulley build keeps inner bore tolerances down to ≤0.008mm.
Industrial Usage & Operational Benefits
Target Application Fields
Solar & Renewable Equipment: Used in photovoltaic tracking systems, cleaning machines, and panel conveyors to ensure steady positioning.
Precision Manufacturing: Powers high-speed transmission in 3C testing machinery and semiconductor assembly equipment.
Automation Systems: Installed on CNC machine tools, textile equipment, and printing machinery for multi-axis synchronous movement.
Automotive & Logistics: Applied in electric motors for automotive power transmission and factory assembly line systems.
Core Mechanical Attributes
Zero-Slip Efficiency: Positive tooth engagement delivers an exact gear ratio, pushing operational drive efficiency above 98% without oil lubrication.
Vibration Control: Built-in shock absorption cuts noise output and keeps machinery running stably during continuous cycles.
Tight Profile Machining: Tooth profile width deviation is held to ≤0.05mm, preventing backlash in sensitive positioning systems.
Quality Assurance & Finishing Lines
Automated Surface Treatment Equipment
An in-house, fully automatic black oxidation processing system uses non-contact handling to prevent parts from bumping together during treatment. The line includes integrated drying units that build clean, corrosion-resistant outer layers. Additional finish choices include zinc plating, anodizing, and high-frequency quenching to handle humid, corrosive environments.
In-Line Monitoring & Precision Equipment
Every single Bored to Size Timing Pulley passes through 100% online inspection stations using CMM units, roundness testers, and profile gauges. Utilizing Statistical Process Control (SPC) maintains a 99.99% yield rate and guarantees reliable batch-to-batch output.
WHY CHOOSE US
Substantial Production Scale: Equipped with 120 sets of high-precision CNC machines and an automated surface treatment line, yielding a monthly capacity of 500,000 units with 40%-60% reserve space for dynamic order shifts.
Certified Quality Systems: Fully compliant with ISO9001 and IATF16949 standards, maintaining strict lot tracking from incoming raw stock to final shipping.
Eco-Friendly Manufacturing: Energy-efficient automated processes and non-hazardous material selections meet strict EU ROHS and REACH regulations.
Regional Supply Advantages: Based in Zhejiang Province, our supply network ensures fast access to raw materials and accessory sourcing.
FAQ
What bore tolerance levels are maintained on a Bored to Size Timing Pulley?
Standard bore tolerances are machined down to ≤0.008mm (with specific custom operations reaching ±0.005mm) to guarantee a precise fit on motor drive shafts.
Which materials are available for custom timing components?
Options include 45# carbon steel for strength, 7075 aluminum alloy for lightweight needs, and 1215 free-cutting steel for smooth machining profiles.
How does the tooth profile runout affect machine noise?
Holding tooth profile runout to ≤0.02mm cuts down gear meshing noise and limits overall drive vibration during high-speed runs.
Are these components compliant with global environmental standards?
Yes. All metal options and automated surface finishes pass ROHS and REACH rules for hazardous substance controls.
Can specialized shaft sizes or special profiles be customized?
Yes. Engineering teams can design custom shapes, bore details, and tooth configurations directly from provided technical drawings.
For precision transmission solutions that reduce operating costs and eliminate drive slippage, rely on HAWEN for proven technical expertise and dependable manufacturing quality.
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We are a professional manufacturer of pulleys and machining components series ,Our products have been exported to Italy ,Turkey Japan and many others countries for many years.For more details,please feel free to contact us through email or phone directly,We will quote you an accurate price when got you your drawings and specifications.
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