15x21x4 Arrowmax AM-200119 Precision Ball Bearings (2 pcs)  [AM-200119]

Precision rolling with Arrowmax AM-200119

When you need dependable bearings for maintenance or upgrades, the Arrowmax AM-200119 set offers tight tolerances and smooth rotation. The 15x21x4mm rubber-sealed units are engineered to keep contaminants out while sustaining reliable motion.

Where these bearings shine

Use these bearings in wheel hubs, pinion or idler shafts, and compact gearbox assemblies to reduce friction and heat. Properly fitted bearings help drivetrain components run cooler and last longer under load.

Why the rubber seal matters

The integrated rubber seal shields the internal race and balls from dust and grit. That protection is particularly helpful for models run on loose surfaces or in workshop environments where debris is common.