>> P.258
■Types■Identification NumberIn IKO Thrust Bearings, the types shown in Table 1 The identication number of Thrust Bearings consists are available. Table 1.1 Type of bearingof a model code, dimensions and a classication sym-bol. Some examples are shown below.TypeThrust needle roller bearingsThrust roller bearingsWithout inner and outer ringsWith inner and outer rings(1)Examples of identication numberModel codeNTBAZKAZExample 1 (In case of NTB or AS)Table 1.2 Type of bearing ringTypeInner ringOuter ring Thrust washerModel codeWSGSASNote(1) or the Thrust Bearings with the inner/outer thrust bearings and inner/outer rings will be delivered separately. Please contact IKO if in need of delivery as an integrated product.rings, Thrust Needle Roller BearingsThese bearings consist of a cage made from a steel plate, which is precisely press formed and surface-hardened, and needle rollers with a diameter variation within 2μm. They have a rigid structure and a high lubricant-retaining capacity.As they have the lowest sectional height compared with other thrust bearings, they can be used instead of conventional thrust washers and can withstand high-speed rotations with a low coefficient of friction.Specially designed thin inner rings (WS) and outer rings (GS), and especially thin (1 mm thick) thrust washers (AS), are available for use in various applica-tions.These bearings are generally used by utilizing their inner surface as the guide surface.Thrust Roller BearingsIn this series, the caged cylindrical rollers AZK and the complete bearings AZ in which AZK are combined with an inner ring (WS) and an outer ring (GS) are available.The cage has a special precise structure which is highly rigid, and cylindrical rollers are outwardly arranged and guided by the cage with exact precision to enable them to withstand heavy loads even at high rotational speeds.to Owing the bearing height T, they are suitable for use in machine tools, ultra-high the high accuracy of Model codeDimensionsNTB2542Type of bearingBore diameter(25mm)Outside diameter(42mm)Example 2 (In case of AZ or AZK)Model codeDimensionsClassificationsymbolAZ254211P5Type of bearingBore diameter(25mm)Outside diameter(42mm)Bearing height(11mm)Accuracy class(1) (Class 5)Example 3 (In case of WS or GS)Model codeDimensionsClassificationsymbolWS2542P5Type of bearing ringBore diameter(25mm)Outside diameter(42mm)Accuracy class (Class 5)pressure pumps, etc.These bearings are generally used by utilizing their Note(1)Not applicable to the model AZK.inner surface as the guide surface.F3
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