It is crucial to understand that oil seals, like any other mechanical component, are subject to failure over time. The key to minimizing downtime and enhancing operational efficiency is recognizing the signs of oil seal failure and understanding its reasons. Here are some common failure modes:
- Furthermore, using the right type and quality of oil seal is vital. Different rotavator models may require specific seals tailored to their design and operating conditions. Consulting the manufacturer's guidelines or seeking professional advice can ensure the correct choice is made.
- Tora Oil Seal: Tora oil seals are engineered to meet the demanding requirements of automotive and industrial applications, providing reliable sealing solutions for various components such as axles, transmissions, and engines. These precision-engineered seals are designed to deliver optimal performance and durability in challenging operating environments.
Types of oil seals
Failure Modes of Oil Seals
Remove the pump fixing nuts or bolts. Pull the pump and gasket or gaskets off the engine.
Rubber type
3) Seal numbering system
The sealing lip is always made of a rubber or synthetic material. For oil seals with a rubber outer case (R, RST, GR, GRST), the rubber quality of the sealing lip and the outer case are the same.
Standard petroleum oil has a lifespan of 30 years at 86 degrees Fahrenheit if it’s not


Purpose of an Oil Seal
Take extra care with a light alloy block or head. It is vital to avoid scratching the machined surface.

Table 4: JTEKT oil seal type codes and corresponding ISO and JIS standards