Qingdao Global Sealing-tec co., Ltd
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Function of the oil seal
Oil Seals are used to exclude water, Dirt, Dust or any other substances from a rotating bearing whilst maintaining lubrication.
An oil seal normally consists of three basic components: The Sealing Element (the nitrile rubber part), the Metal Case, and the Spring. It is a widely used sealing component. The function of a seal is to prevent the leakage of medium along the moving parts. This is mainly achieved by the sealing element. Nitrile Rubber (NBR)
NBR is the most commonly used seal material. It has good heat resistance properties, good resistance to oils, salt solutions, hydraulic oils, and gasoline. Operation temperatures are recommended from -40deg C to 120deg C. It also functions well under dry environment, but only for intermittent periods.
Product Overview
| Description | TTrailer Hub Wheel Unitized Oil Seal |
| Material | EPDM,,NBR ,NR,PTFE,PU,Silicone,etc. |
| Hardness | 40~90 Shore A |
| Size | As the demands of customers |
| Color | Black,brown,red,white,yellow,etc |
| Application | Trains,automobile,motocycles,trucks,buses,agricutural machinery and any equipments. |
| Temperature | NBR(-40~120°C),FFKM(-20~320°C) (-20~200°C),Silicone (-70~220°C) EPDM(-50~150°C),PU(-40~90°C) |
| Characteristics | Ozone -resistant,high/low temperature- resistant.wering resistant.oil resistant,voltage-resistant,ect |
| Size | Custom Size or stand size |
| Paking | plastic ba & carton box |
Main Rubber And Properties
| NBR | MVQ | FKM() | EPDM | HNBR | |
|---|---|---|---|---|---|
| Material color | black or color | black or color | black or color | black or color | black or color |
| Hardness (Shore A) | 65-75 | 65-75 | 65-75 | 65-75 | 65-75 |
| Opreating Temperature | -40~125 | -60~225 | -40~250 | -40~125 | -40~140 |
| Tensile Strength(Mpa) | 14 | 7.5 | 12 | 13 | 14.8 |
| Elogation At Break (%) | 385 | 220 | 210 | 300 | 425 |
| Specific Gravity | 1.2 | 1.35 | 1.85 | 1.15 | 1.2 |
| Properties | excellent in oil resistant, wear resistant | excellent in heat resistant, cold resistant,weatherability | excellent in heat resistant, oil resistant, chemical resistant | outstanding heat, ozone, and weather resistance. | excellent in oil resistant, heat resistant,weatherability |
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