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Since 1939 NACHI has been developing rolling bearings of the highest calibre.
Each production step is made and controlled in NACHI‘s own plants, from the steel plant and the heat treatment to the machining of the components and assembly of the bearings.
Today NACHI delivers a wide range of ball-roller-, spherical-roller- and precision-roller-bearings for applications in general machinery, agriculture, transmission, fluid, aerospace and the demanding automotive industry.
In general, rolling contact bearings may be classified as radial or thrust bearings according to bearing design or they may be classified as ball or roller bearings according to the type of rolling element. Radial bearings are mainly designed for supporting a load perpendicular to a shaft axis, whereas thrust bearings accept loads parallel to the shaft axis. Using the BALL and ROLLER classification ROLLER bearings may be further divided according to the shape of the roller into the subclasses; Cylindrical roller, Tapered roller, Spherical roller, or Needle roller bearings. BALL bearings can be further divided according to the number of rows into either single-row or double-row (for Thrust Ball bearings, single-direction and double-direction.) BALL Bearing may be still further sub-divided into smaller segments according to the relationship between the bearing rings and rolling elements; the shape of bearing rings; and use of accessories. Bearings are also classified by specific application, such as Clutch-release ball bearings for automotive applications. Table 1.1 indicates the principal types of radial and thrust bearings and a summary of their design. Table 1.2 summarizes the designs and features of rolling contact bearings.