Crankshaft oil seal TC 12014012/13 semi-rubber semi-metal oil seal

Short Description:

Crankshaft oil seal sealing principle: 1. Since there is an oil film controlled by the oil seal edge between the oil seal and the shaft, the oil film has fluid lubrication characteristics. Under the action of the surface tension of the liquid, the rigidity of the oil film just makes the oil film and the air contact end form a crescent surface, preventing the leakage of the working medium, thus realizing the sealing of the rotating shaft; 2. The sealing ability of the oil seal depends on the oil film on the sealing surface If the thickness is too large, the oil seal will leak; if the thickness is too small, dry friction may occur, causing the oil seal and shaft to wear; if there is no oil film between the sealing lip and the shaft, it is easy to cause heat and wear; 3. Therefore, during installation, it must be Apply some oil to the sealing ring, and at the same time ensure that the skeleton oil seal is perpendicular to the axis line. If it is not perpendicular, the sealing lip of the oil seal will drain the lubricating oil from the shaft, which will also cause excessive wear of the sealing lip. During operation, the lubricant in the casing seeps out a little, so that it is ideal to form an oil film on the sealing surface.

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Specification

crankshaft oil seal

120*140*12/13

Oil seal function use

Engine: Crankshaft--Crankshaft front and rear oil seal valve--valve oil seal (engine repair kit o-ring) (distributor oil seal, water pump oil seal, balance shaft oil seal, oil pump oil seal...); Camshaft--Camshaft oil seal ; Transmission: Transmission--transmission front and rear oil seals, shift lever oil seal (transmission repair kit o-ring) (transfer case--transfer case front and rear oil seals); Rear axle: half shaft--rear half shaft oil seal difference Gearbox -- (front) rear angle vector oil seal, rear wheel oil seal, front wheel oil seal, direction oil seal (steering machine repair kit o-ring), steering booster oil seal (front axle oil seal).

All parts that have liquid lubricating oil in the running body box and are connected to the outside need oil seals. Some are rubber, some are metal, most are steel rubber, such as crankshaft rear oil seal, gearbox front and rear oil seals, left and right half shaft oil seals, main reducer front oil seals, air compressor crankshaft oil seals, etc.

Precautions

When installing, if the outer surface roughness of the shaft diameter is low or there are defects such as rust spots, corrosion, burrs, etc., use a fine emery cloth or oil stone to smooth it; apply clean oil or grease on the oil seal lip or the corresponding position of the shaft diameter. Apply sealant to the outer ring of the oil seal, wrap the keyway on the shaft with hard paper to avoid scratching the lip of the oil seal, and use a special tool to rotate the oil seal inward and press it in. Do not smash hard to prevent the oil seal from being deformed. Or squeeze the spring and fail; if the lip is flanged, the spring falls off and the oil seal is skewed, it must be removed and re-installed. It should be noted that when the shaft diameter is not worn and the oil seal spring has sufficient elasticity, do not tighten the inner spring without authorization

parameter

parameter
product name			Rubber oil seal
size			12014012/13
Material			rubber and steel
color			brown
Serve			Sales / After Sales
warranty period			1 year
Minimum order quantity			50PCS
Package			Oupin packaging or neutral packaging can also be customized packaging
delivery time			15-30DAYS
Shipping terms
payment terms			T/T D/P credit card
OEM&ODM：			Custom-made samples are acceptable
material	Low TEMP.	High TEMP.	Performance
NBR	-40	120	Good resistance to alcohol,amines, petroleum oils, and gasoline over a wide range of temperature. Also good resistance to caustic salts and fair acid. Poor in strong oxidants, chlorinated hydrocarbons, ketones, and esters
HNBR	-25	140	HNBR is made from NBR by hydrogenation. It has high temperature resistance, abrasion resistance and good physical properties.
ACM	-25	150	It is used in diaphragm, hose for automotive application. Good resistance to heat, ozone and oil. Generally attacked by water, alcohol, glycol and aromatic hydrocarbons. The molecular structure contains ethyl acrylate (EA). Butyl acrylate (BA), and methoxy ethyl acrylate (MEA). High BA content get better low temperature resistance, and high MEA content get more oil resistance.
EPDM	-40	125	Stable in polar fluids (alcohol, ketone, and glycol), and hydrochloric acid. Due to the low specific gravity, it can compound with large amount filler.
VMQ	-60	125	The most widely temperature ranges for application. Good weather and ozone resistance, but poor mechanical property and chemical resistance.
FKM	-20	250	Fluoroelastomers have a high degree of chemical stability and are currently the best media resistance of any elastomer. Type 26 fluoroelastomer resistant to petroleum-based oils, diester oils, silicone ether oils, silicic acid oils, inorganic acids, most organic, inorganic solvents, drugs and so on