High Precision Low Noise Helical Gears For Industrial Machinery In China

Helical gears, also known as helical cylindrical gears, feature inclined spiral teeth instead of straight teeth. They are mainly used for parallel shaft power transmission. With progressive meshing of helical teeth, they realize stable, low-noise and heavy-load transmission. Made of high-strength alloy steel with precision machining and heat treatment, they own high hardness, wear resistance and fatigue resistance. Widely applied in R/F/K/S series reducers, machine tools, automobiles, construction machinery, automation and conveying equipment, they are the most commonly used core transmission gears in industry.

Product Features

• Inclined spiral teeth with progressive meshing and smooth disengagement, minimum impact.
• Large contact ratio and multi-tooth simultaneous meshing, higher load capacity than spur gears.
• Low noise and low vibration, suitable for long-term high-speed operation.
• Slight axial force is generated during operation, requiring matched bearings for offset.
• Excellent wear resistance and anti-pitting performance, longer service life.
• Complete precision grades, including standard industrial type and precision ground type.
• High universality, standard parts for hardened reducers and industrial machinery.

Technical Parameter Table

Main Applications

• Core gears for R/F/K/S hardened gear reducers
• Automotive gearbox, hybrid DHT and NEV drive reducers
• Machine tools, fans, water pumps, air compressors
• Conveyors, packaging, textile and printing machinery
• Construction, mining, metallurgy and heavy industry equipment
• Agricultural machinery, injection molding machines and automatic production lines

 Product Advantages

• Continuous helical meshing, smoother operation and lower noise.
• 30% higher load capacity than spur gears of the same size.
• Impact and fatigue resistance, suitable for 24h continuous operation.
• High transmission efficiency and low energy consumption.
• Uniform wear, anti-pitting and anti-breaking, long service life.
• Standard size and strong interchangeability, easy maintenance.
• Meet high-speed, heavy-load and high-precision industrial demands.

Production Process

• Raw material inspection → 2. Forging & cutting
• Normalizing & tempering → 4. CNC turning
• Helical gear hobbing & milling → 6. Deburring & chamfering
• Carburizing or induction hardening → 8. Low temperature tempering
• Precision gear grinding & tooth modification → 10. Bore and face grinding
• Meshing & hardness inspection → 12. Anti-rust treatment and packaging

Why Choose us?

• 7-axis CNC Grinding: We adopt high-precision 7-axis CNC grinding machines, holding tolerances as tight as ±5μm, ensuring gears run quietly, smoothly and with outstanding durability.
• Strong technical expertise: Our core R&D team includes doctoral and master’s professionals specializing in spiral bevel gear technology, providing strong technical support for complex projects.
• Rigorous testing & high precision: All gears undergo 100% inspection with Gleason metrology systems. We can achieve DIN 6 grade accuracy with strict control over tooth profile and direction errors, keeping our quality at the industry-leading level.
• High transmission efficiency: Our gear designs support a single-stage reduction ratio of up to 300:1, with actual transmission efficiency reaching over 95%, greatly improving energy utilization.
• Excellent durability & cost efficiency: Our gears deliver 40% lower lifecycle cost and a failure rate below 0.5%, ensuring stable long-term operation and reduced maintenance costs.
• Fast response & short lead time: Supported by our digitalized production process, we are able to shorten the delivery cycle to only 20 working days, helping you accelerate project development and launch.
• Professional custom design capability: We provide fully customized gear solutions for applications requiring high-reduction, high-speed, heavy-load, low-noise, and special small-tooth profiles, based on your actual working conditions.