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RC Glossary


New to the RC Hobbies? What does buggy, bulkhead, nitro mean in radio control car hobbies? Check out the glossary for remote control cars below.

Ball Differential --

A differential that uses small balls and pressure rings instead of grease or diff fluid to tune diff action. A basic ball diff consists of; the diff gear, small balls, 2 pressure rings, a tension spring, and an adjustment nut. The balls are inset in the gear and then sandwiched between the pressure rings. As the adjustment nut is tightened against the tension spring, it applies more force to the pressure rings and against the balls, tightening the diff action. Likewise, loosening the adjustment nut loosens the diff, allowing the opposing tires to spin more freely. Ball diffs are known for precise adjustments and smooth operation, as well as being free of backlash or play. Always use light grease or silicone spray to lubricate ball diffs.
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