 Angular contact tapered roller bearings are designed to accommodate combined simultaneously acting radial and axial loads. The bearing ability to accommodate the axial load is largely determined by the taper angle of outer ring raceway, called contact angle. When increasing the contact angle, the axial load capacity of the bearing increases with the corresponding decrease of the radial load capacity and permitted rotation speed. Even slight shaft misalignment relative to the housing is unacceptable when using angular contact tapered roller bearings.Angular contact tapered roller bearings are produced single row accommodating only axial load in one direction, as well as double row and four-row accommodating axial load in both directions. It is possible to supply single row bearings matched in pairs and completed with intermediate rings to secure the necessary clearance. In the general engineering fields the most common are single row bearings, double row and four-row bearings are usually used in the heavy machinery. Angular contact tapered roller bearings have a split design, which makes their mounting easier. Angular contact tapered roller bearings are produced with pressed steel cages. Large-size bearings are equipped with massive cages made of steel or brass and for special applications cages made of glass fibre reinforced polyamide can be produced.
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