News & Blogs

General-purpose seal technology Seals are indispensable sealing devices used in automobiles, airplanes and other vehicles, construction machines, equipment at petrochemical plants, home appliances, and various other machines. NOK offers a wide variety of seal products of very high reliability, including oil seals, based on its constant and focused research on materials, workings, and design. MORE…

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General-purpose seal technology Seals are indispensable sealing devices used in automobiles, airplanes and other vehicles, construction machines, equipment at petrochemical plants, home appliances, and various other machines. NOK offers a wide variety of seal products of very high reliability, including oil seals, based on its constant and focused research on materials, workings, and design. MORE…

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Long-life, highly reliable lubricants effective even under extreme conditions. NOK markets special lubricants imported or manufactured by NOK Kluber Co., Ltd., a joint venture between NOK CORPORATION and Germany-based Kluber Lubrication LTD.The special lubricants we deal in possess a strong resistance to very high and low temperatures, high speed, high load as well as tolerance…

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Rope-operated manual starting devices for compact internal combustion engines. Used to start electric generators, lawnmowers, and farm engines. Recoil starters are rope-operated manual starting devices for compact internal combustion engines, and are commonly used to start electric generators, lawnmowers, outboard motors, and farm engines.NOK’s recoil starters are highly regarded for their durability, reliability, stable functionality,…

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Valves to control the direction of cooling media flowing in compressors. There are two major categories: single-body machined components, such as suction valves and discharge valves; and various special high precision machined products. NOK’s compressor valves are used to control the coolant flowing direction in the compressor in a car air-conditioner, a room air-conditioner, a…

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Fluid control equipment, including pressure control devices, flow-rate controllers, and flow-path switching units, that are incorporated into household appliances carrying water, gas, and other special fluids. NOK has successfully integrated sealing and actuator techniques to provide fluid control equipment, such as pressure control devices, flow-rate controllers, and flow-path switching units, that are incorporated into household…

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Carbon bearings used for electric water pumps mounted in electrified vehicles (xEVs). They have been developed applying our materials and tribology technologies built to produce cooling water sealing. These items adopt NOK’s original carbon materials, which exhibit excellent resistance against heat, wear, corrosion, and dry sliding. They contain no hard materials, such as glass fiber,…

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Diaphragm couplings developed for aircraft gas turbine engines. This product absorbs displacement to ensure proper torque transmission. As machinery and equipment is growing in size and speed, couplings are expected to have lighter weight and lower bearing load. This requires this item to increase its abilities to absorb misalignment and enable durable dynamic balance during…

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Used for equipment’s elastic joint sealing and displacement absorption. They excel in consistent displacement and corrosion resistance. Metallic bellows exhibit resistance against highly corrosive fluids and radioactive fluids. They have been developed as ideal sealing alternative to elastomer and gasket materials to be used for equipment running under high-temperature and high-pressure conditions.Actual applications range from…

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Pressure accumulators, a mechanism that uses the compressibility of nitrogen gas. They are used for capacity correction and pulsation absorption in fluidic circuits. Accumulators are an essential function to enable the potential energy of fluids to act effectively, and maintain high-accuracy operations of oil, water and other fluidic circuits in a safe and economic manner.…

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