Hollow-cylindrical bearings, rolling-ring linear actuators, and self-aligning bearings are some of the topics covered in this bearings reference guide. Edited by Lawrence Kren and Victoria Reitz Segment technology assembles a number of individual, self-contained segments to form a ball-bushing bearing. Each segment consists of a plastic retainer and lid that holds and retains the plate and balls. Subsequently, the segments are joined to create a complete bearing. Two extruded members provide smooth relative motion, low drag, and minimal deflection without significantly modifying the extrusions. The annulus between the inner and outer extrusions is too small to permit use of standard bearings without extra components. The new custom segments are distributed within the assembly to use the extrusion as part of the bearing. When most people think of recirculating rolling elements, they think of traditional ball-bushing bearings. However, recent expansions into segment-bearing technology address applications where conventional ball-bushing or other rolling-element bearings never dared to go. Segmented bearings have a ball retainer assembled from several self-contained ball-retainer segments. Each segment includes at least one ball track with a load-bearing portion and a return portion. Now segments with recirculating ball technology can be designed and placed to accommodate the most un-usual shapes, as well as dramatically reduce envelopes. Traditionally, users requiring the high-load capacity and low friction of rolling element bearings were forced to conform to standard bearing configurations and envelope restrictions. Segments can be configured to fit within the annulus constraints of two components to provide low-friction smooth linear motion, minimum deflection, and long life. They have self-adjusting features that 'forgive' temperature fluctuations and housing variations, and maintain a consistent preload over their life. Segmented bearings reduce design constraints and provide a low-friction alternative for high-drag applications where part configuration prevents use of standard bearings. Recirculating bearing technology can now be employed
Products & Services
Radial Ball Bearings
Radial ball bearings are friction reduction, rotation devices that carry loads radially around its axis. A subtype of ball bearings, they operate through the use of lubricated steel balls placed between two circular guides. They are frequently called deep-groove bearings.
Linear bearings are used in applications where a component needs to be moved along a straight line with high accuracy.
Plain Bearings and Sleeve Bearings
Plain bearings and sleeve bearings (also referred to as bushings or journal bearings) are used to constrain, guide or reduce friction in rotary or linear applications. They function via a sliding action.
Thrust bearings are designed for pure thrust loads, and can handle little or no radial load. The rolling element in a thrust bearing can be a ball, needle or roller.
Linear Guides and Rails
Linear guides and rails provide a smooth, precision, guiding surface on which the rolling element of a linear bearing rides.
Self-aligning bearing housings: UNI™, MINI™, EXALIGN™
UNI, MINI, and EXALIGN self-aligning bearing housings are designed to be used with our range of metal polymer bearings.
Topics of Interest
There are several reasons to consider segmented-bearing technology. For example, conventional bearings tailored to unusual needs often take too long to get or cost too much. What is readily available...
Ball bushing bearings are similar to a bushing in terms of construction, but have rows of balls to reduce friction and increase stiffness, accuracy, and smoothness. The bushing may be of open or...
The function of bearings is to keep the shaft or rotor properly aligned with the stationary parts under axial and radial loads. Bearings that provide radial positioning to rotors are known as line or...
Leadscrew technology has made vast strides. Now, leadscrews offer higher performance at lower cost. Leadscrews were once considered a cheap substitute for ball screws to be used mostly in less...
Magnetic-fluid technology brings compact, low-friction, self-contained bearings capable of speeds to 30,000 rpm. University of Mining and Metallurgy Bearings in precision equipment such as computer...