Precision Helical Gears – Inch & Metric | Stainless Steel, Aluminum, Hardened Steel

Description

What Are Helical Gears?

Helical gears are cylindrical gears with teeth cut at an angle (helix angle) to the axis of rotation. The angled teeth engage gradually, resulting in smoother, quieter operation compared to spur gears. Helical gears can transmit power and motion between parallel shafts (parallel helical gears) or non-parallel, non-intersecting shafts (crossed helical gears).

Advantages Over Spur Gears

• Higher load capacity due to greater tooth contact ratio
• Smoother and quieter operation (gradual tooth engagement)
• Reduced vibration and noise in high-speed applications
• Higher torque transmission capability
• Superior performance in continuous-duty industrial applications

Specifications

Inch Sizes: 48 Diametral Pitch (standard), other pitches available on request
Metric Sizes: Module 1, 2, 3 (standard), additional modules available
Materials: Stainless steel (SUS304, 416SS), aluminum (A6061), hardened alloy steel (SCM440/4140, black oxide finish)
Helix Angle: Standard 15°–30°; custom angles available
Pressure Angle: 20° standard
Heat Treatment: Case-hardening, through-hardening, induction hardening

Applications

Industrial Gearboxes • Conveyor Systems • Material Handling • Automotive Transmissions • Oil & Gas Equipment • Power Generation • Elevators & Hoists • Heavy Machinery • Compressors & Blowers

Why Choose GUNRI for Helical Gears?

• Precision CNC gear hobbing and grinding for high-accuracy helical tooth forms
• Wide material selection: stainless steel, aluminum, hardened steel, and engineering plastics
• Engineering support for custom helix angles, bore sizes, and keyways
• Comprehensive heat treatment and surface finishing capabilities
• OEM and volume production with competitive pricing