These cassette seals are widely used in wheel-end applications, such as the axles of agricultural machinery or off-road trucks.
Seals are classified by O.D. wall material, lip type, and whether they have a spring or not.Major oil seals are specified in ISO 6194-1 and JIS B 2402-1.Table 2 shows the common types of oil seals, while Table 3 shows the features of each type of oil seal.Table 4 lists the JTEKT oil seal type codes and corresponding ISO and JIS standards.
Begin with a thorough inspection of all involved surfaces:shaft sealing surface and housing bore, seal lip(s), and outside diameter. Maintaining the integrity of the sealing lips is “Priority 1″. The slightest tear or nick can develop into a more significant issue during operation.