Tokez developes and produces special PTFE engine seals
The shaft surface can groove and wear so much that installing a new seal will no longer eliminate the leak , nor compensate for the damage.Using a wear sleeves with the help of a sealing lip made from modified PTFE , can eliminate this problem. Tokez crankshaft seals use specially filled PTFE material developed for rotational application.
Each sleeve is custom made from high quality 1110 steel. Sleeve surface is specially finished (Ra=0.5 to 0.8 m) . For some application hard chrome plating is applied to provide wear and corrosion resistance.