Tapered roller bearing cup and cone units

  Taper roller bearing cup and cone units belong to separable bearings, and both the inner and outer rings of the bearing have conical raceways. This type of bearing is divided into different structural types such as single row, double row, and four row tapered roller bearings according to the number of roller rows installed. Single row tapered roller bearings can withstand radial loads and unidirectional axial loads. When a bearing is subjected to radial load, an axial force component will be generated, so another bearing that can withstand the opposite axial force is needed to balance it.

There are two types: small cone angle and large cone angle. The small cone angle mainly bears the combined radial and axial loads, which are mainly radial loads. It is often used in pairs and installed in reverse. The inner and outer race rings can be installed separately, and the radial and axial clearances can be adjusted during installation and use; The large cone angle mainly bears axial and radial combined loads, mainly axial loads, and is generally not used alone to bear pure axial loads. When configured as a pair, it can be used to bear pure radial loads.

  The cone angle of the outer raceway of a single row tapered roller bearing cup and cone unit is between 10 ° and 19 °, and it can withstand the combined action of axial and radial loads simultaneously. The larger the cone angle, the greater the ability to withstand axial loads. The bearing with a large cone angle, with the suffix B, has a cone angle between 25 ° and 29 °, and can withstand large axial loads. In addition, the clearance of single row tapered roller bearings can be adjusted during installation.
  The outer ring (or inner ring) of a double row tapered roller bearing cup and cone unit is a whole. The small end faces of two inner (or outer) rings are similar, with a spacer in the middle. The clearance is adjusted by the thickness of the spacer, or the pre interference of the double row tapered roller bearing can be adjusted by the thickness of the spacer.
Four row tapered roller bearings have similar performance to double row tapered roller bearings, but they can withstand larger radial loads and have slightly lower limit speeds. They are mainly used in heavy machinery.

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