Industries that use bevel gears to provide gear motion at various angles include aerospace, automotive, utilities and marine.

You can select a straight bevel gear or a spiral bevel gear depending on your requirements. Spiral bevel gears provide smoother movement than the straight bevel gears, as the gear tooth engagement is continuous.

Some important parameters you must consider before buying a bevel gear are:

1. Loads acting on the bevel gears
2. Power transmission ratio (or gear ratio)
3. Dimensions of bevel gears: pitch, module, pressure angle and diameters
4. Type of bevel gear required: straight or spiral
5. Expected useful life of a bevel gear

Action Steps
The best contacts and resources to help you get it done

Buy bevel gears from reputable bevel gear manufacturers

Once you have identified your power or motion transmission requirements, review the standard bevel gears available with reputable manufacturers.

I recommend: Dayton Gear, a reputable gear manufacturer, offers straight bevel gears with different pitches, modules and pressure angles. You can buy english bevel gears or metric bevel gears at RIBCO, a company that supplies gears for tractors, railways and earthmovers. Rush Gears is another bevel gear manufacturer that provides straight and spiral bevel gears to the aerospace, mining and textile industries. De'Ran Gear supplies spiral bevel gears for rock crushers, bow thrusters, petrochemical plants and sprinkler systems. Nissei manufactures bevel gears including spiral and straight bevel gears. Furthermore, you can select a metal or plastic bevel gear at Curtis Machine Company or American Precision Gear.

Buy bevel gears from bevel gear distributors or retailers

You can compare different bevel gears based on their features and prices at distributors or retailers' websites.

I recommend: Industrial Drive Components is a distributor of power transmission equipment that also offers plastic and metal bevel gears. Wolters Motors & Drives is a reputable bevel gear distributor supplying bevel gears to the marine, food and pharmaceutical industries. Kaman Industrial Technologies, an industrial distributor, supplies various gears including bevel gears. You can also evaluate different products at other bevel gear distributors, such as Industrial Products and Bearing Industrial & Supplies.

Buy specialty or customized bevel gears

If standard bevel gears available in the market do not meet your requirements, opt for customized bevel gears. Make sure you perform a cost-value analysis before ordering a customized bevel gear set.

I recommend: Arrow Gear Company manufactures customized bevel gears with high precision. Link Gear and Machine Company is another customized bevel gear manufacturer that can supply bevel gears with diameters from 1-36 inches. You can also buy a customized bevel gear at Dalton.

Tips & Tactics

Helpful advice for making the most of this Guide

• •  Ensure proper lubrication for your bevel gear system, as both excessive and inadequate lubrication might affect performance of your bevel gears.
• •  For extreme operating conditions such as high pressure and corrosive environment, consult an expert for the bevel gear design.