Your Trusted Automotive Oil Seal Supplier
DUHUI is an automotive bearing manufacturer in China, which can provide matching automotive bearing oil seal solutions. For any DUHUI model of wheel bearings (DWB series) or wheel hubs (DWH series), you can find the matching spare oil seals for maintenance or repair. Our automotive bearing oil seals are manufactured in strict accordance with manufacturer OE standards, and can be replaced with spare parts from original bearing manufacturers like SKF, NSK, and etc. Now DUHUI has more than 20,000 oil seal SKUs. For any certain automotive bearing, we can provide a variety of oil seal solutions, either economical or high-end.
DUHUI automotive bearing oil seals are generally skeleton oil seals, which can effectively prevent internal lubricating oil leakage and prevent external impurities from entering. The rubber sealing ring is the most important component. We use high-quality rubber raw materials to make oil seals. Our rubber suppliers must have professional ISO9001 and ISO14001 certifications. Each type of rubber must be tested by professional instruments to ensure the composition standards to ensure product quality.
Main Automotive Oil Seal
Multiple Material Choices Of Duhui Automotive Oil Seals
DUHUI automotive oil seals are mainly composed of metal skeleton, metal spring and rubber sealing ring. DUHUI offers a variety of oil seals made of different materials for you to choose from, including NBR, Silicone, FKM, EPDM, ACM, and PTFE. Our salesperson can explain the performance and price of various materials to you. You can choose freely. If you want something cheaper, you can choose NBR oil seals, if you want high-end, you can choose FKM oil seals, etc.
High Standards Of Duhui Automotive Oil Seals
DUHUI automotive oil seals meet very stringent standards.
Example of ordinary NBR oil seal:
During the raw material preparation stage, we need to analyze the NBR composition to ensure that its acrylonitrile content (ACN) reaches about 40% and that its surface hardness reaches Shore 70+5.
During the assembly and inspection process, we need to do various tests, such as high and low temperature alternating tests, which require testing usage in an environment of -40°C to 150°C.
High Precision And Quality Of Duhui Automotive Oil Seals
The two most important factors affecting the accuracy and quality of oil seals are the raw materials and the mold. DUHUI has its own precision mold processing center, which can design and manufacture precision molds with multi-lip structures and integrated skeletons, ensuring the accuracy and quality of the molds. High-quality raw materials, high-precision molds, combined with DUHUI’s advanced CNC machine tools and strict production standards, have created China’s first-class automotive oil seals.
The price of automotive oil seals varies greatly. Different models, accessories, and materials all affect the price.
I will tell you the price levels of oil seals made of various materials. Generally speaking, ACM < NBR ≈ EPDM < Silicone < FKM < PTFE.
HNBR oil seals are an upgrade from NBR oil seals and are more heat-resistant than NBR oil seals.
Most oil seals are made of rubber. But PTFE oil seals are not. PTFE is a plastic.
