12018750B Cassette Oil Seal 150.15*178*13/16 For 1306879 CATERPILLAR AL79950 JOHN DEERE 0734309323 0750110155 ZF

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Product Description 12018750B Cassette Oil Seal For 1306879 CATERPILLAR AL79950 JOHN DEERE Size 150.15*178*13/16 OE CATERPILLAR 1306879 DEUTZ-FAHR 04415098 FENDT F510300020440 JOHN DEERE AL79950 ZF 0734309323 0734309423 0750110155 Temperature 40~120,FKM(-20~280°C) Standard Standard Certificate ISO9001 / TS16949 HS Code 8487900000 Contact us Vicky Zhang WhatsApp/ Wechat: +86 15131376397 Email: vicky@china-oilseals.com Product Catalog Click here to download 12018750B Cassette Oil Seal For 1306879 CATERPILLAR AL79950 JOHN DEERE The rotor oil seal, often referred to as the rotating shaft lip seal or simply the shaft oil seal, is the most common and essential dynamic sealing component in almost all rotating equipment. Its core function is: to prevent the leakage of lubricating grease (or oil) between the rotating shaft and the fixed housing, while also blocking external contaminants such as dust, dirt, and moisture from entering the equipment interior. Main Structure and Function Shell (Metal Case) Material: Usually made of low-carbon steel or stainless steel. The surface is often electroplated (such as with zinc plating) to prevent rust. Function: Provide structural support and rigidity to ensure that the oil seal can be firmly pressed into the equipment cavity (hole), maintain a stable interference fit, and prevent the entire oil seal from rotating or falling off within the hole. Sealing Lip Material: It is the "heart" of the oil seal and is made of various synthetic rubbers, such as nitrile rubber (NBR), acrylate rubber (ACM), fluorine rubber (FKM), etc. The type is selected based on different working conditions. Function: In direct contact with the surface of the rotating shaft, it generates radial clamping force, forming the key part of the seal. The shape and design of the lip (such as the flange, angle) directly affect the sealing effect and service life. Spring (Garter Spring) Material: Stainless steel or piano wire. Function: Wound around the back of the sealing lip to provide continuous and stable radial clamping force for the sealing lip. When the lip opening is worn out due to long-term use, the spring can automatically compensate to ensure the constant sealing pressure, which is the key to ensuring long-term effective sealing. Dust-proof lip (Auxiliary Lip/Dust Lip) - (Optional but common) Function: On the outer side of the main sealing lip, an additional lip opening facing the external environment is formed. Its main task is not to seal the oil, but to prevent contaminants such as dust, sand, and water from invading from the outside. This is particularly crucial for equipment operating in harsh environments (such as construction machinery and agricultural equipment). KDIK OEM LIST FOR REFERENCE 189.8*230*15.5/17 148*170*14/15 20*47*9/12 149.9*176*16 210*225*25.5 150*176*15.5/16 210*240*14/16 150*180*14.5/16 210*240*16/18 150.15*178*13/16 220*265*19/21 155*190*17.5/19 235*270*20/22 155*195*14.5/16 25*41*9.5/13 155*195*16.5/18 25*52*12 160