... oil resistance, good abrasion resistance, Use wide if oil seal, but not used in ketone and lipid polarsolventsHNBRKeep the feature ... and chemical Resistance,It's the best type of Oil Seal with Rubber performance balance in various RubberEPDMGood water Resistance, ... better than all along Felt materials Application:1, prevent sediment, dust, moisture and the invasion of the bearing; 2, limit ...