spiral gear china spiral bevel gears are typically made from hardened steel. The teeth of these gears are often ground for a far more precise finish allowing for little sound at high speeds. You can specify left hands 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 are a great option. The gears operate at 90° to one another and have “spiral” shaped the teeth which gives maximum tooth surface get in touch with while rotating. With contact spread over the whole tooth the spiral bevel gear can be run much quicker compared to the straight tooth bevel equipment and handle harder begins 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 common. The setup is designed so that the worm can change the gear, however the equipment cannot switch the worm. The angle of the worm is usually shallow and consequently the gear is held in place because of the friction between the two. The gear is found in applications such as for example conveyor systems where the locking feature can act as a brake or a 
crisis stop.
The model cross-section shows a typical placement and utilization of a worm gear. Worm gears have an inherent safety mechanism built-in to its style since they cannot function in the reverse direction.