Bearing 15x21x4mm (2) ARAC3162
Keep your RC car running at peak efficiency with the high-quality ARRMA Bearing 15x21x4mm (2) set. These precision-engineered ball bearings reduce drivetrain friction and ensure ultra-smooth power delivery across all types of off-road and street terrain. Designed for optimal durability, this essential RC replacement part maintains consistent operation under heavy bashing conditions.
Upgrade or maintain your high-speed vehicle with the genuine ARRMA Bearing 15x21x4mm (2) pack. Featuring super-smooth ball races, these high-precision replacement ball bearings minimize rotational drag inside your differential or hub assemblies, allowing your brushless motor to transfer maximum power directly to the tires. Specially manufactured to match precise factory dimensions, these RC car bearings offer a seamless drop-in fit for popular ARRMA platforms like the Kraton, Infraction, Typhon, and Mojave series, ensuring long-lasting performance during extreme runs.
What models are compatible with the ARRMA Bearing 15x21x4mm (2) set?
The ARRMA Bearing 15x21x4mm (2) set fits a wide variety of 1/10, 1/8, and 1/7 scale ARRMA vehicles including the Kraton, Outcast, Infraction, Limitless, Typhon, Mojave, Big Rock, Senton, and Vendetta.
How many bearings come in the ARRMA Bearing 15x21x4mm (2) package?
Each ARRMA Bearing 15x21x4mm (2) package contains two high-quality precision ball bearings.
What are the exact dimensions of the ARRMA Bearing 15x21x4mm (2)?
The ARRMA Bearing 15x21x4mm (2) features an inner diameter of 15mm, an outer diameter of 21mm, and a width/thickness of 4mm.
Why should I replace worn bearings with the ARRMA Bearing 15x21x4mm (2)?
Installing fresh ARRMA Bearing 15x21x4mm (2) components reduces friction and drivetrain resistance, preventing premature wear, lowering motor heat, and restoring maximum speed.







































