Oil seal size
- One of the key functions of the auto parts spark plug is to ignite the air-fuel mixture at the right time and ensure proper combustion. This is achieved by delivering a high voltage electrical current from the ignition system to the spark plug, which then generates a spark to ignite the fuel. A properly functioning spark plug will ensure that the engine runs smoothly and efficiently.
The seal is usually made of high-quality materials such as rubber or synthetic compounds that can withstand high temperatures and pressures. It is designed to maintain a tight seal even under extreme conditions, such as rapid changes in temperature and pressure during engine operation.
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The pulley is kept from turning on the crankshaft by a key fitting into grooves on the crankshaft and pulley.
DIN
The major cause of extrusion and nibbling is stress caused by high pressure. This is commonly noticed when the oil seal has a chipped or nibbled look. In fact, in some cases, the surface of the seal tends to peel on its own, which makes it have a shaved look. What the stress does is that it increases the clearance gap between the mating edges, which causes the seal to get entrapped, and then leads to severe physical damage.
4. SHAFT SPEED: As different shafts move at different speeds you need to consider the runout, the housing bore, and oil type being sealed. Ensure you select a seal that will not suffer from abrasions or spiralling.

