The edge of the metal is finely ground after seal manufacture in a centerless grinder to enable an interference fit in the oil seal housing. A slight chamfer on the outer diameter (OD) of the seal is desirable for easy assembly. The sealing lip is prepared by buffing, grinding or cutting away the rubber flash which occurs at the sealing edge. A fine sealing edge creates sufficient pressure on the shaft to minimise spring load, leading to lower friction whilst maintaining effective seal performance. The garter spring plays an important role in the efficiency of the oil seal. If its tension is too high, heat will be generated between the sealing lip and the shaft, and result in rapid wear of the lip. If too low, the spring will be ineffective and the sealing lip will be worn away leading to leakage of the fluid.
In the world of automotive engineering, the spark plug plays a crucial role in the combustion process that powers our vehicles. A7TC spark plugs are known for their high-performance capabilities and are designed to enhance engine performance, reduce emissions, and improve fuel efficiency. This guide will provide you with an in-depth understanding of A7TC spark plugs and how they can benefit your engine.Among the most common causes of oil seal failure are:
To install them, both correctly and professionally, it is essential to use the right special tool for the replacement part. We recommend replacing this component with the aid of OE repair manuals with complete and extensive instructions.
Now, insert the new spark plugs, being careful to apply a light coat of anti-seize compound on the threads to prevent sticking in the future. Tighten them gently, then use the torque wrench to reach the recommended torque specification. Reconnect the spark plug wires, ensuring they're properly seated and in the correct order. The oil seal 20 34 7, in particular, is a common size used in many different types of machinery
Leather
Recommended for abrasive applications
Good running properties, due to the impregnated seal lip
Can be used on shafts which have a surface roughness outside the range for rubber seals
Not suitable for water