bearing oil seals for car and motorcycle

The extension housing seal can usually be replaced without removing the gearbox.The extension housing seal can usually be replaced without removing the gearbox.bearing oil seals for car and motorcycle.
Disconnect the propeller shaft from the extension and put a drip tray under the extension. In most cases you can prise out the with a screwdriver, taking care not to damage the bore.
Some Ford gearbox-extension oil seals are set deeply into the housing; it is best to use a special removal tool to avoid scoring the bore. The tool is a puller which is screwed into the seal, fitting over the gearbox output shaft.
Vauxhall extension oil seals are part of a replaceable collar. Tap it off with a sharp drift or an old screwdriver.
Clean the bore and coat the new seal with multi-purpose grease. Tap the new seal into position, using a socket or a tube large enough to rest only against the outer part of the seal, and a soft-faced hammer.bearingoil seals  for car and motorcycle.
To avoid damage to the seal, smear its lip and also the front of the prop shaft with grease before inserting the shaft into the extension housing and refitting it.
There are two main types of oil seals: static and dynamic. A static seal fits between two non-moving parts, a dynamic seal between a stationary part and a moving one. Most seals are made of synthetic rubber.
An example of a static seal is a simple ‘0’ ring. These seals can be found in such places as the oil filter used on combined automatic gearbox and engine units, on conventional gearbox
Dynamic seals are more complex in shape, with one or two lips, depending on where they are situated. These are widely used in the transmission system of both front and rear-wheel-drive cars, where oil must be sealed in where a rotating shaft passes through a component. For example, at the outer end of a half shaft and on the differential pinion.
Dynamic seals also contain a thin coiled spring, called a ‘garter spring’, which holds the sealing lip in contact with the revolving shaft.bearing oil seals for car and motorcycle.