Crankshaft bearings with oil seal (pair, 2 pcs) let the shaft turn in the crankcase of the Partner 350 chainsaw and seal the crankcase. They work at high revs, so they are among the first parts to wear out. Manufacturer: EMAST.
Signs of wear: play in the shaft, humming and vibration at revs, oil leaks at the oil seals. It is best to replace the bearings together with the oil seals, and to clean the crankcase thoroughly before assembly.
