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PU Polyurethane Hydraulic Oil Seals - Heavy Duty Scraper Seals for Excavator Cylinders Export OEM Factory1
Sealing Gaskets, PU Oil Seal, PU Seal Ring
Ningbo Zhongmu Rubber Products Co., Ltd
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Product Description Product DescriptionOil seals, or rotary shaft seals, are integral to any rotating or moving assembly. They masterfully seal grease, liquids, or dirt, meticulously stabilizing the space between stationary and moving parts in mechanical equipment. An oil seal is composed of three essential elements:The assembly includes a sealing material (rubber component), robust metal casings, and reliable springs, offering a versatile sealing solution.Our types include: TC, TG, TA, SA, SB, SC, DC, MC, MG, TCV, TCN, and TC4, among others, catering to diverse sealing needs.Explore our extensive selection of premium rubber materials, tailored for manufacturing high-performance oil seals. These materials are engineered to withstand an array of chemicals and endure extreme temperatures, both high and low.Product Parameters[Introducing Oil Seal Materials]Ding Rubber (NBR)Temperature resistance of 100oC, good oil resistance, wear resistance, anti-aging, good sealing effect.silica gel (VMQ)Temperature resistance of 200oC, general oil resistance, high temperature resistance, good waterproof, non-toxic.Fluorogel (FKM)Temperature resistance of 280oC, good oil resistance, wear resistance, high pressure resistance, corrosion resistance.ethylene-propylene-diene misch-polymere (EPDM)Temperature resistance of 150oC, general oil resistance, corrosion resistance.(PTFE)Temperature resistance of 280oC, good oil resistance, wear resistance, high pressure and corrosion resistance.polyurethane (PU)Temperature resistance of 90oC, good oil resistance, wear resistance.We specialize in crafting customizable non-standard oil seals using high-quality materials like fluorine rubber, silicone rubber, fine rubber, and propylene rubber.[Oil Seal Core Structure Types]Single lip structureSingle channel sealing lip for low pressure reciprocating motion (e. g. automotive crankshaft oil seal)Double lip structureTwo upper and lower sealing lips, a main seal (contact shaft), a secondary seal (dust), often used in high pressure environmentComposite lip structureMain lip + dust lip + buffer spring (like type NOK TCV), can withstand both radial and axial forceslabyrinth packing Multi-channel ring groove design to block oil by throttling effect (suitable for high-speed rotating axis)Seal the oil swing ringMetal ring rotating centrifugal oil swing with shaft (commonly used in gearbox gearbox)[Essential Structural Components of the Oil Seal]Component nameMaterial selectionfunction declaration seal(ing)lipNBR/FKM/PTFEMain seal surface, the contact shaft forms a dynamic sealspringStainless steel / carbon steelProvide lip pretension to compensate for wearskeletonPA6/PCFixed the sealing lip shape and transfer the mounting stressDust-proof lipspolyurethane elastomerBlocking the entry of solid impurities (optional)Self-lubricating coatingplumbago/PTFEReduce the friction coefficient and extend the life life[Oil Seal and Its Sealing Principle]The oil seal crafts an oil film through the precise contact between its lip and the shaft. This dynamic sealing leverages spring pressure and material elasticity. During rotation, frictional heat causes the lip to contract, enhancing the seal; while stationary, it maintains contact, preserving the seal's integrity.[Fields of Oil Seal Applications]Our oil seals are extensively utilized in engines, gearboxes, hydraulic pumps, reducers, and other equipment. They excel in high-temperature, high-speed, and corrosive environments, outperforming traditional rubber oil seals. For instance, PTFE seals offer up to 20 times the lifespan, effectively sealing water, acid, gas, and more.[Selection and Installation of Oil Seals]Consider the shaft's rotational speed, temperature, pressure, and medium characteristics. Ensure vertical shaft installation to prevent tilting and apply grease to the lip to mitigate dry grinding.Product Superiority:We meticulously select premium materials and engineer parts that deliver exceptional performance and stability, coupled with cutting-edge automation.Our products are distinguished by their superior elasticity and wear resistance, maintaining stability even in the most extreme conditions.With our dedicated team of technical experts, we offer bespoke customization for our customers, delivering prompt and effective solutions.Adhering rigorously to our quality control system, we are proud to be a trusted supplier for many prestigious enterprises worldwide. Detailed Photos Company Profile Packaging & Shipping FAQ
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