1. Description of spiral bevel gear

A spiral bevel gear is a type of bevel gear where the teeth are curved and oblique. The teeth engage gradually, starting at one end

and moving along the tooth's length. This design is a significant evolution from the simpler straight bevel gear,

which has straight teeth that engage along their entire length simultaneously.

2. The Fundamental Principle
a) Gradual Engagement: Unlike straight teeth which slam into contact, the curved teeth of a spiral bevel gear mesh gradually.

This starts with the heel of the tooth and smoothly rolls towards the toe.
b) Multiple Tooth Contact: The spiral design ensures that two or three teeth are sharing the load at any moment.

This distributes the force over a larger surface area.
c) Efficient Power Transmission: The combination of gradual engagement and multiple tooth contact results in smoother,

quieter, and stronger power transfer compared to straight bevel gears.

3. Applications

a) Automotive Differentials: The most common application. They are the fundamental gearset in a rear axle differential,

transmitting power from the driveshaft to the wheel axles at a 90-degree angle.
b) Aerospace: Used in helicopter rotor drives and aircraft engine transmissions where extreme reliability, high power-to-weight ratio,

and smooth operation are non-negotiable.
c) Industrial Machinery: Found in heavy-duty applications like rolling mills, printing presses,

and marine propulsion systems where high torque and durability are needed.
d) Agricultural Equipment: Used in tractors and heavy farming machinery that operates under high loads.
e) Power Tools: High-quality drills and saws use them for compact and efficient power transmission.

YIZHI MACHINERY which is equipped with a full range of machining capabilities to satisfy customer needs.

Our team has extensive experience in precision gearing systems for numerous industries. We have supplied gears for mining equipment, power tools, hydraulic pumps and the rail transit industry.

The feature products are double helical gear and precision spiral bevel gear, equipped with Hofler Rapid and helix grinding machines, Niles ZE and ZP grinding machines and Gleason Phoenix bevel gear grinding machines. This capability allows us to provide quality customs made gears to domestic and overseas markets.