Smooth Power Transmission for High-Speed Applications

Precision helical gears feature unique spiral tooth designs that provide smoother engagement compared with spur gears. Their higher contact ratio makes them suitable for high-speed, heavy-load, and low-noise applications. We provide customized solutions with helix angles ranging from ±5° to ±45°. This flexibility allows us to support different industries, including automotive, aerospace, and precision machinery. Our precision helical gears deliver stable performance under demanding operating conditions.

Strict Control of Helix Angle and Tooth Profile

We maintain strict control over helix angle tolerance and tooth profile accuracy. These factors directly affect helical gear performance. Even small deviations in helix angle can lead to uneven axial forces and increased operating noise. Our minimum precision reaches Grade 6, with helix angle tolerance controlled within ±2 arc minutes. For high-precision transmission systems, we control tooth profile error within ≤0.01 mm. This ensures smooth tooth engagement during operation and reduces vibration during power transmission. Every helical gear is inspected to confirm compliance with these critical specifications before delivery.

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Full-Process Machining and Verification Capabilities

To manufacture high-precision helical gears, we use Hehai/DeMA 3+2 five-axis simultaneous machining centers. These advanced machines provide accurate spiral tooth formation and stable processing quality. We also maintain a comprehensive quality analysis system for customer requirements. If you have special noise or vibration standards, we can provide related testing and analysis support. During mass production, we strictly follow equipment maintenance and gauge calibration schedules. All machines and measuring instruments receive regular verification. Our precision helical gears are produced with consistent tooth profile accuracy to meet different application requirements.

Simple and Transparent Procurement Process

Our goal is to make your procurement process simple and efficient. We understand the technical requirements involved in gear selection and customization. During the pre-sales stage, we provide free process optimization suggestions. We support both standard orders and repeat production orders. Repeat orders usually have shorter lead times because we retain previous process data and fixture programs. For large-volume orders, we provide flexible pricing solutions based on order quantities. We accept payments in US dollars, Euros, British pounds, and Chinese yuan to support convenient transactions with global customers.

Technical Specifications

Parameter	Minimum Specification	Maximum Specification
Outer Diameter	5 mm	290 mm
Module (m)	0.2	10
Face Width	2 mm	260 mm
Helix Angle Range	±5°	±45°
Gear Precision Grade	Grade 6	Grade 8
Helix Angle / Tooth Profile Error	Helix Angle ±2′	Tooth Profile ≤0.01 mm