Spur gear wheel

helical-toothedmetaltransmission

Product Overview
Hansheng Automation provides the automotive industry with gears that offer ISO 5 precision, ultra-low noise, and high durability, leveraging advanced equipment and years of experience in manufacturing precision gearboxes. These gears are designed for high performance in electric vehicles, automatic transmissions, hybrids, and various automotive systems.

Detailed Product Features

• Superior Noise Reduction: Building on experience manufacturing zero-backlash harmonic drives (≤ 10 arc sec), Hansheng applies the same rigorous standards to automotive gears. ISO Level 5 precision ensures smooth meshing, significantly reducing whine and vibration in Electric Vehicle (EV) reducers and high-speed transmissions.
• Complex Internal Gear Capability: Equipped with the state-of-the-art Kashifuji Gear Skiving Machine KPS30, Hansheng specializes in manufacturing high-precision internal ring gears used in planetary gear sets (Automatic Transmissions & Hybrids). This allows for integrated gear manufacturing that traditional hobbing cannot achieve.
• Ultra-Precision Surface Finishing: With ultra-mirror finishing capabilities (Accuracy ±0.002mm), gear surfaces are optimized to reduce friction, extend service life, and improve overall transmission efficiency.

Technical Specifications
Feature | Specification
--- | ---
Gear Types | Spur Gears, Helical Gears, Internal Ring Gears, Planetary Gears, Shafts, Splines
Precision Standard | ISO / DIN / GB Level 5 (JIS Grade N5)
Module Range | 0.1 - 5.0
Diameter Range | Ø 3mm - Ø 300mm
Production Process | Hobbing, Shaping, Power Skiving (Hard Skiving), Precision Grinding
Material Options | 20CrMnTi, SNCM420, SCM440, 42CrMo, or Custom Spec
Hardness | HRC 58-62 (After Carburizing/Induction Hardening)
Surface Finish | Up to Ra 0.2 (Super-finishing available)

Applications

• Electric Vehicle (EV) Reducers: High-speed input shafts and helical gears.
• Planetary Gearboxes (AT/Hybrid): Sun gears, Planet gears, and Internal Ring gears.
• Steering Systems (EPS): Precision worm gears and pinions requiring high safety factors.
• Engine Components: Oil pump gears, balance shaft gears, timing gears.
• Actuators: Seat adjustment gears, window lift gears (small module expertise).

Manufacturing & Quality Control

• Advanced Manufacturing Arsenal: Gear Skiving (Kashifuji KPS30), Hobbing (Ningjiang CNC Horizontal Gear Hobbing Machine YK3610Ⅲ), Machining (Brother CNC Lathe & Vertical Machining Centers), EDM (Seibu Wire WEDM M50B).
• Quality Assurance: Every gear undergoes rigorous inspection using Gear Inspection Machines and CMMs. Full traceability reports are provided, including Gear Profile & Lead Error Reports (K Charts), Material Certifications, Heat Treatment Reports, and Dimension Inspection Reports.

Collaboration Process

• Engineering Review: Drawings (STEP/IGES/PDF) are reviewed for feasibility, tolerancing, and manufacturability optimizations.
• Prototyping: Small batches for validation testing using soft machining or wire EDM.
• Mass Production: Scalable manufacturing with strict batch control.

FAQ Highlights

• Capable of gears for high-speed EV motors (ISO Level 5 precision, speeds exceeding 15,000 RPM).
• Gear Skiving (Kashifuji KPS30) is 3-5 times faster than shaping and allows for "Hard Skiving" after heat treatment for superior accuracy.
• Heat treatment services (Carburizing, Nitriding, Induction Hardening) are provided via certified partners, with final hard finishing in-house.
• Flexible MOQ: Supports prototyping (1-5 units) and high-volume mass production.

Characteristics / Technical Specifications

• ISO 5 precision
• Ultra-low noise
• High durability
• Gear types: Spur, Helical, Internal Ring, Planetary, Shafts, Splines
• Module range: 0.1 - 5.0
• Diameter range: Ø 3mm - Ø 300mm
• Material options: 20CrMnTi, SNCM420, SCM440, 42CrMo, or custom
• Hardness: HRC 58-62
• Surface finish: Up to Ra 0.2
• Production processes: Hobbing, Shaping, Power Skiving, Precision Grinding
• Applications: EV reducers, planetary gearboxes, steering systems, engine components, actuators