The linear roller bearings are available in a design in which the cylindrical rollers are separated from each other by spacers, a full complement version and an angled version element. The design with spacers runs particularly smoothly and quietly and is sealed on its end faces. Full complement linear roller bearings are suitable for high temperatures, speeds and accelerations. Angled elements are particularly suitable, due to the 90° arrangement of two linear roller bearings, for closed arrangements. This design is sealed on all sides.
When referring to linear bearings, the reference usually is to devices that
incorporate ball bearings – meaning friction is reduced between moving parts by
recirculation (usually metal) balls. Bushings, ball splines, linear guides and
slides typically incorporate recirculation ball bearings.
1.1)Linear motion bearing is a liner motion system that is produced with low cost and is used for fitting of unlimited travel and cylinder axis.
2) As the bearing all contact with bearing point, the working load is small.
3)The steel ball rotates with extremely small friction force, and the high precision stable motion is obtained.
LINEAR ROLLER BEARING FEATURES
Up to twenty times the load capacity of conventional linear ball bearings. This dramatic increase allows for more compact machine designs with a reduction in hardware costs.
A rigid design that provides high accuracy while tolerating the high shock loads common to machine tool application.
A coefficient of friction as low as .005. When replacing v-ways or flat-ways, RoundWay linear roller bearings allow for the use of smaller less expensive drives, motors, belts, gears and ball screws.
A self-aligning capability that reduces installation time and cost.
An eccentric trunnion pin that adjusts bearing height to compensate for minor inaccuracies in mounting base flatness or machining accuracy. Installation is quicker and easier than old style, conventional way systems.
Availability of an integral wiper that protects against contamination while retaining lubrication.
Interchangeable components for quick, cost-effective machine maintenance.
There is no need to scrap the entire way system, a problem with some linear guide products.
The RoundRail* Advantage combined with the self aligning feature, eliminates the need for de-rating factors commonly seen with linear guides.