KOK seals often are formed of possible combinations to create the most ideal seals. For example the T Type seal and the C Type Seal are frequently combined to give TC type seals. This results in an oil seal where the metal insert is enveloped in rubber and has a dust lip. The most common oil seal type combinations are: TC, SC, DC. KC, VC, KA, OC, OV, OA. Also, KOK are more than capable at producing oil seals according to customer requirements.
