90311-70007 rubber crankshaft oil seal 70*92*8.5 for 4AFE 5AFE

Product Description:

Crankshaft oil seal 90311-70007 Used For 4AF 4AFE 5AFE

Item	Crankshaft oil seal
Car Make	used for COROLA
OEM	90311-70007
Delivery Date	if have in stock only 4-7 work days ; produce need 30-45 days after receiving deposite
Advantages	1.Good resistance to high temperature
	2.High tensile strength
	3.Perfect flexibility
	4.Good abrasive resistance
	5.With NBR and VITON quality suit for different market.

Oil seal profile

Oil seal, also known as shaft seal, is a device part used in a machine to prevent

the flow (mostly lubricants) from spilling over the joints (mostly the joints or shaft of the parts).

Static and dynamic seals (general reciprocating movement) are called seals.

The representative form of oil seal is TC oil seal, which is a double-lip oil seal

with self-tightening spring completely covered by rubber.

Generally speaking, the oil seal usually refers to this TC skeleton oil seal.

The main cause of oil seal leakage

Loose sealing is the main factor of oil leakage.

When there is wear on the shaft and a groove is formed,even if the new oil seal isn't sealed,

it's because the contact pressure between the oil seal lip and shaft decreases,resulting in

too small surplus of oil seal lip diameter and axle diameter after installation.

Taking the crankshaft oil seal of S195 diesel engine as an example,the main reasons for

its poor sealing are as follows:

1,Poor manufacturing quality of ring seal;

2,Poor quality of shaft or bearing;

3,Failure of maintenance;

4,Improper installation;

5,Improper storage of the virus, which is affected by environmental pollution.

Packing & Delivery: