Spiral bevel gears are typically created from hardened steel. One’s teeth of these gears are often ground for a far more precise finish enabling little sound at high speeds. You can specify left hand or right hand based on the direction you need to run the gears
If you have a higher speed application that requires a lot of torque then spiral bevel gears certainly are a great choice. The gears operate at 90° to one another and also have “spiral” shaped tooth which provides maximum tooth surface get in touch with while rotating. With contact spread over the whole tooth the spiral bevel gear could be run much quicker compared to the straight tooth bevel equipment and handle harder starts and stops.
We make spiral bevel gears limited to industrial applications.
Worm gears are found in large gear reductions. Gear ratio ranges of 5:1 to 300:1 are standard. The setup is designed to ensure that the worm can change the gear, however the equipment cannot turn the worm. The angle of the worm is usually shallow and as a result the spiral gear china apparatus is held set up due to the friction between your two. The equipment is found in applications such as 
conveyor systems where the locking feature can become a brake or a crisis stop.
The model cross-section shows a typical placement and use of a worm gear. Worm gears have got an inherent protection mechanism built-in to its design given that they cannot function in the invert direction.