Ground Spiral Bevel Gear

Spiral Bevel Gear is a type of bevel gear with curved teeth, oblique teeth to provide gradual engagement and larger contact surface at a given time than an equivalent straight bevel gear. This gradual meshing characteristic effectively reduces impact loads during transmission, minimizes operating noise, and enhances overall transmission stability—making it far superior to straight bevel gears in high-speed, high-torque industrial applications.
Gear grinding is a critical precision machining process performed after heat treatment, specifically tailored for spiral bevel gears to unlock their full performance potential. This process utilizes high-precision shaped grinding wheels, paired with precise generating or forming motions, to actively grind the tooth surfaces of gears with exceptional control. Unlike passive finishing processes such as lapping, gear grinding actively removes material to not only correct thermal deformation caused by heat treatment but more importantly, to precisely modify and optimize the macroscopic geometry of the tooth surface—including tooth profile, tooth direction, and crowning (a specialized “drum shape” design). This optimization ensures the gear achieves a theoretically ideal meshing state, which is instrumental in improving contact stress distribution and enhancing the gear’s load-bearing capacity. For ground spiral bevel gears, this process also delivers extremely low surface roughness (as low as Ra 0.4 µm, per BELON’s production standards) and high geometric accuracy (up to DIN 4 quality level), laying the foundation for excellent wear resistance, quiet operation, and long service life in demanding industrial scenarios such as heavy machinery, mining, and precision equipment.

Features:
​​(1)Highest geometric accuracy and correctability: It can actively modify the tooth shape to create tooth surfaces with specific “drum shapes” calls crowing process or preset transmission errors, thereby achieving local contact areas that are insensitive to installation errors and have optimal noise levels. This is something that lapping processes cannot achieve.
(2)Excellent surface quality: The ground tooth surface is very smooth with extremely low roughness (below Ra 0.4 µm), effectively reducing friction and wear.
(3)Excellent load-bearing capacity and reliability: By optimizing the contact stress distribution on the tooth surface and obtaining excellent micro-geometry, the resistance to pitting and adhesion is significantly improved.
(4)Excellent quietness: By actively adjusting the tooth profile, the most ideal transmission error curve can be designed, thereby achieving extremely low meshing noise.
(5)High consistency: The CNC gear grinding machine ensures extremely high consistency for each gear pair.

BELON provides an exceptionally wide and precise range of spur gears, engineered to meet the most demanding specifications. Our production capabilities cover an expansive spectrum from light-load Module 0.5 to heavy-duty Module M45, ensuring we have the perfect component for your unique requirements. What truly distinguishes BELON from other gear suppliers is our flexible and customer-centric engineering support: whether you provide detailed design drawings or only physical samples, our professional team possesses the expertise to optimize your existing design for enhanced performance or conduct reverse engineering with unparalleled precision. This ensures we deliver fully customized, application-specific gear solutions that not only meet your exact needs but also maximize efficiency, durability, and cost-effectiveness—solidifying BELON as your trusted partner for high-quality gear solutions.

Ground Spiral Bevel Gear Production Capabilities