This dedicated rubber sealing ring is tailor-made for Bafang M500 and M600 mid-mounted central motors, a core maintenance spare part for overhauling leaking motors.

Bafang M500, M600 mid drive electric bike motors

✅ Premium oil-resistant nitrile rubber material, anti-aging, wear-resistant for long-term rotating friction

✅ Precision CNC sizing, tight fit on motor shaft and motor housing without gap or deformation

✅ Dual waterproof + oil sealing function, prevents gear lubricant leakage; keeps rainwater, silt and dust out of the gear chamber

✅ Good compression elasticity, stable sealing performance under temperature changes

✅ Direct replacement for worn, hardened or cracked old seals, no extra modification required during motor repair

For motor oil leakage repair, routine overhaul of Bafang mid drive ebikes, spare parts stock for overseas repair shops, after-sales maintenance matching for complete electric bicycles.