The Bearing Specialists Association (BSA) has released two new Educational Services Committee (ESC) Reports covering Ball Screws as Positioning Actuators and Spherical Plain Bearings.
The report on Ball Screws as Positioning Actuators explains that the ball screw is a precision machine element which converts rotary motion to linear motion. Key design features of these elements, technical qualifications and applications are included. The report also considers the various recirculation methods, preload methods, special series and custom designs.
Spherical Plain Bearings discusses their evolution from their original design as replacements for plain cylindrical sleeve bearings to their current designs as radial, angular contact and thrust spherical bearings, all designed to support heavy loads.
The direction of the load that is acting on the bearing determines which type of spherical plain bearing is right for the application. The ESC Report contains essential information on the design and use of each type of Spherical Plain Bearing. In addition to diagrams of the various spherical plain bearings, the ESC Report includes an easy-to-read chart which provides information on the pertinent criteria used in the spherical plain bearing selection process.
Like all other BSA ESC Reports, both Ball Screws as Positioning Actuators and Spherical Plane Bearings are available free by downloading from the BSA website, www.bsahome.org.
The ESC Reports are a program of BSA
Product Model | Inside Diameter | Outside Diameter | Thickness |
GE25KRRBFA125.5 bearing | 25 | 34.9 | |
GE25KRRB bearing | 25 | 52 | 34.92 |