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Timken Bearing Bearings for Oil Production& Drilling E-1837-Bc-7425-Bi-2059-Bn-2653-Bn-2504-B1
Cylindrical Roller Bearing, Timken Bearing, Drilling Bearing
Suzhou Dsn Bearings Limited
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Product Description Oilfield bearing is a key mechanical component used in oil production equipment to support rotating parts, reduce friction and withstand load. Due to the harsh operating environment of the oilfield (such as high temperature, high pressure, corrosive media, heavy load, etc.), the oilfield bearing needs to have the characteristics of high strength, wear resistance, corrosion resistance and long life. Here are its key points:First, the characteristics of oilfield bearingsHigh carrying capacityNeed to withstand the huge load of drilling, pumping and other equipment (such as drill pipe torque, pump pressure impact, etc.).Corrosion resistanceIt is suitable for corrosive conditions such as hydrogen sulfide, salt water and acid medium in oil and gas field environment.High temperature resistance and stabilityThe temperature of some working conditions can reach more than 150°C, and it is necessary to keep the material performance stable.Long life and reliabilityOil field equipment needs continuous operation, bearing maintenance costs are high, so the durability requirements are strict.2. Common types and structuresRolling bearingBall bearings: suitable for medium and high speed, medium load scenarios (such as pumps).Roller bearings (cylindrical/tapered roller bearings) : Used for heavy-duty low-speed equipment (such as drill tables).Plain bearingSelf-lubricating bearing: containing solid lubrication layer (graphite, PTFE), suitable for difficult to frequent lubrication conditions.Hydrodynamic bearings: rely on oil film support for high-speed rotating equipment (such as centrifugal compressors).Specially designed bearingSealed bearing: dustproof, waterproof, anti-corrosion, suitable for desert or offshore oil field environment.Ceramic hybrid bearing: ceramic roller combined with steel track, high temperature resistance, corrosion resistance.Third, material selectionsteelHigh carbon chromium steel (GCr15), carburized steel (such as 8620), heat treatment to improve hardness and toughness.Stainless steel304/316 stainless steel is used in corrosive environments, but chloride ion stress corrosion should be noted.Surface coatingZinc plating, nickel plating, DLC (diamond-like coating) to enhance wear resistance and corrosion resistance.Ceramic materialSilicon nitride (Si3N4) or zirconia (ZrO2) are used in extreme conditions, but at a higher cost.4. Typical application scenariosDrilling equipmentTop drive bearings, turntable bearings: bear the axial and radial loads of the drill pipe.Pumping unitCrank bearings, gearbox bearings: periodic heavy load, need to withstand fatigue.Centrifugal pumps and compressorsHigh-speed bearings need to be precisely balanced to prevent vibration from causing failure.Downhole toolMicro bearings in Measurement while drilling (MWD) tools are required to withstand high temperature and pressure.
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