🔤 RC Glossary

Every RC term, decoded

Cars, crawlers, boats, planes, helis, drones, tanks and radios — every real term, plain English, no jargon left behind. New to RC? Start here.

230
Terms
15
Categories
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Cross-linked to the Wiki, Guides and Tuning Guide.

All 230 🔋 Battery & Power (23) 🔧 Chassis & Handling (21) ⚙️ Drivetrain & Gearing (13) 🏁 Racing (13) 🏎️ Vehicle Types (16) 📡 Radio & Control (26) 🎥 FPV & Drones (22) 🚤 Boats (15) ✈️ Planes (18) 🚁 Helicopters (15) 🎗️ Tanks & Military (12) 🔩 General Hardware (16) 🛞 Tires & Wheels (8) 🎨 Paint & Body (6) 🧰 Maintenance & Safety (6)
BDFGOPRS

B

⚙️ Belt Drive A drivetrain that transfers power using reinforced rubber belts ins…

D

⚙️ Differential A gear or fluid-filled unit that lets the left and right (or front… ⚙️ Dogbone A simple driveshaft with pinned ends shaped like a dog bone — cheap…

F

⚙️ FDR Final Drive Ratio — the total gear reduction from motor to wheels.

G

⚙️ Gear Pitch / Mod The tooth size standard for pinion and spur gears — Mod (metric) an…

O

⚙️ One-Way Bearing A bearing that only transfers power in one rotational direction, le… ⚙️ Outdrive The cup-shaped part that connects a differential's output to the dr…

P

⚙️ Pinion The small gear on the motor shaft. More teeth = more top speed (and…

R

⚙️ Rollout How far the car rolls forward for one full turn of the motor — the…

S

⚙️ Shaft Drive A drivetrain that transfers power through a solid metal shaft rathe… ⚙️ Slipper clutch An adjustable friction clutch on the spur gear that lets the drivet… ⚙️ Spool A locked (non-differential) axle where both wheels are forced to sp… ⚙️ Spur The large main gear the pinion drives. Set the pinion-to-spur mesh…