$6.95
An oil seal keeps lubricant contained inside a housing while blocking dirt, water, and grit from working past a rotating shaft. It seats in the bore around the shaft, with a flexible sealing lip riding on the shaft surface to hold oil on the inside. When the lip hardens, cracks, or wears, oil begins to weep past it and the bearing it protects starts running dry.
An oil seal keeps lubricant contained inside a housing and blocks dirt, water, and grit from working their way in past a rotating shaft. It seats in the bore around the shaft, with a flexible sealing lip riding on the shaft surface to hold oil on the inside while excluding contamination from the outside.
When an oil seal hardens, cracks, or wears its lip, oil begins to weep past it and the bearing or gearset it protects starts running dry, so a leaking seal is the signal to replace it before that damage spreads.
Match the inner diameter, outer diameter, and thickness to the seal being replaced, since an oil seal is defined by the shaft it rides and the bore it presses into.
