Zenoah 12x28x8mm Replacement Bearing K603406001 for G200,G231,G240,G260,G270,G290  [K603406001]

Compact 12x28x8mm Bearing for G-Series Engines

The Zenoah K603406001 is a 12x28x8mm steel ball bearing made for small RC engine rotating parts. It suits the G200, G231, G240, G260, G270 and G290 engine models named above and restores smoother rotation where original bearings have worn.

Fitment advice: clean the housing and shaft thoroughly before installing, and press the bearing in squarely to avoid contamination or misalignment. Check seating depth and shaft runout after fitting to ensure the assembly spins freely without binding.

Durability notes: upgrading a fatigued 12x28x8mm bearing reduces heat build-up and rolling resistance, which helps extend the life of adjacent seals and shafts when the new bearing is installed and broken in correctly.