Procurement Policy CSR Procurement Guidelines The NOK group’s procurement from suppliers complies with its Procurement Policy The NOK Group believes that if we are to fulfill our corporate social responsibility, it is essential that our awareness is shared across the procurement supply chain. We are asking our suppliers to understand the Procurement Policy shown on…
Flexible printed circuits (FPCs) are thin, light, and able to bend without breaking. FPCs are studied day to day to respond to an ever-increasing variety and growing complexity of electronic equipment. Report on flexible printed circuit (excerpts) For details of each report, refer to the back issue of the magazine that carries the corresponding report.…
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…
Description Diaphragm What is a diaphragm? A diaphragm is a thin film laid between a moving component and a still component, preventing fluids or media in the two neighboring zones or chambers from mixing with each other. Varieties of diaphragms Diaphragms can be classified into the following three types: The diaphragms that are used solely…
Description Introduction Squeeze gaskets are available in a variety of dimensions and shapes. The squeeze gasket has the following characteristics: ① Reasonable price ② Small footprint ideal for miniaturized or simplified equipment ③ Self seal type usable in a wide range of pressure and temperature for a wide varieties of fluid and environment ④ Easy…
Description Types of lip gaskets The following table shows types of gaskets for oil hydraulic cylinders and their characteristics. Gaskets for oil hydraulic cylinders (dedicated to piston seals) Gaskets for oil hydraulic cylinders (dedicated to rod seals) Shape classification Cross-section shape of gaskets Material Characteristics L Urethane rubber, nitrile rubber, fluororubber A gasket dedicated to…
Introduction Oil seals are indispensable parts for sealing all types of equipment. They have a number of features such as simple structures, relatively low cost, and usability across a wide range of environmental conditions. Approx. 40 large and small oil seals are employed in automobiles. Typical shapes and materials of oil seals for automobiles ■Basic…
Types of seals Materials of seals Characteristics Major applications Rotary seals, oil seals, gland Gaskets, mechanical seals Nitrile rubber (NBR) Materials of general-purpose seals Oil seals Acrylic rubber (ACM) Materials of heat-resistant and abrasion-resistant seals Silicone rubber (VMQ) Materials of heat-resistant and abrasion-resistant seals. Low oil resistance. Fluororubber (FKM) Materials of heat-resistant and oil-resistant seals…
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…
Basic Construction Developing and charging rollers The developing roller feeds a specified quantity of toner to the photoreceptor, and the charging roller applies a specified quantity of charges to the photoreceptor. Our products feature good control of conductivity at high precision. Pressurizing and heat rollers and fixation belt The pressurizing roller applies uniform pressure while…
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