Bolt it in place, and off you go: A slewing ring is a contained system of balls or rollers, caging, raceways, mounting provisions, and often, integral gearing as well. These large units are designed ...

Editor's note: An updated version of this information can be found here. Bearings are used to help reduce friction. Metal-upon-metal contact produces large amounts of friction. The friction adds to ...

To investigate the axial compression performances of precast concrete columns with a novel steel connection, axial compression tests were carried out on 14 specimens. The effects of four different ...

Abstract: This paper proposes a DHARMB (decoupled hybrid axial and radial magnetic bearing), which consists of a PRMB (passive radial magnetic bearing) and an AAMB (active axial magnetic bearing). The ...

Spindles designed for machine tool applications, such as milling, grinding and turning, require the bearings to be set in preload to meet speed, stiffness and accuracy requirements. More importantly, ...