Spiral bevel gears are typically created from hardened steel. One’s teeth of these gears are usually ground for a far more precise finish enabling little noise at high speeds. You can specify left hands or right hand depending on the direction you need to run the gears
If you have a high speed application that requires a whole lot of torque then spiral bevel gears certainly are a great choice. The gears run at 90° to one another and also have “spiral” shaped tooth which gives maximum tooth surface contact while rotating. With contact spread over the whole tooth the spiral bevel equipment can be run much quicker compared to the straight tooth bevel gear and handle harder begins and stops.
We make spiral bevel gears limited to industrial applications.
Worm gears are used in large gear reductions. Gear ratio ranges of 5:1 to 300:1 are standard. The setup was created so that the worm can change the gear, however the gear cannot switch the worm. The position 
of the worm is shallow and because of this the gear is held set up because of the friction between the two. The equipment is found in applications such as conveyor systems in which the locking feature can act as a brake or a crisis stop.
The model cross-section shows a typical placement and usage of a worm gear. Worm gears have an inherent basic safety mechanism built-in to its style since they cannot function in the invert direction.