This aftermarket spur gear set is supplied as a direct RC replacement for ARRMA 1/5 platforms. The MAKX039TS items are formed from 20CrMnTi steel and sold in three tooth-count options: 39T, 43T and 47T, all with a 1.0 Mod pitch. The intent is to provide a steel option where enhanced wear resistance and dimensional control are needed.
Compatibility and gearing: these spur gears are intended for the ARRMA 1/5 Kraton and Outcast models referenced in the compatibility list below. Choose the tooth count to tailor drivetrain ratio—reduced teeth favour acceleration, increased teeth favour top speed. Always validate the M1.0 pitch and tooth count against your pinion and gearbox before fitting.
Fitting guidance: ensure correct pinion mesh, inspect mating surfaces and bearings for wear or play, and establish consistent backlash. Apply suitable grease to gear faces, avoid over-tightening screws that may deform carriers, and rotate the gearbox by hand to check for smooth engagement prior to final assembly.
Confirm the tooth count and M1.0 pitch match your existing pinion and gearbox prior to installation, and follow proven mesh setup methods to maintain reliable operation in high-load RC scenarios.
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