What are the conditions for the normal and reverse loading of tapered roller bearings?
Hello, I'm Camry KMR bearingsTapered roller bearings are generally used in pairs, according to the adjustment, installation and use of different occasions, there are two following arrangement. The 1. suits (outer ring relatively narrow end) corner contact ball bearing or tapered roller bearing pressure center distance is less than two bearing mid span, called dress. The shafting of this method is simple in structure, easy to assemble, disassemble and adjust, but the heating elongation of the shaft will reduce the axial clearance of the bearing and even die.
2. anti loaded (outer ring width relative end) horns contact ball bearing or tapered roller bearing pressure center distance is greater than two at the midpoint of the bearing span, known as anti loading, obviously, axial thermal expansion will increase the axial clearance of bearing. In addition, the structure of reverse loading is more complicated, and it is inconvenient to assemble, disassemble and adjust.Stiffness analysis of positive and negative when the transmission parts of cantilever installation, shaft reverse mounting stiffness ratio of forward shafting high, this is because the distance from the center of pressure bearing with large, maximum bending moment of the bearing force, deformation and axial deformation and are less formal.
When the transmission parts between the two bearings, the formal wear of the pressure center to reduce the distance, and help to improve the rigidity of the shaft, the reverse is the opposite. Therefore, two contact ball bearing or tapered roller bearing suits and reverse installation should be based on the transmission parts (gear, worm) considering the structure and the axis. And choose to use.
