Feature

How to optimise round rail performance and cost with informed linear bearing selection

When designing for linear motion systems, the initial decision between round and square rail can significantly impact cost, performance, and durability.

02/07/2024 15:03:07

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Square rail, which is typically the more expensive option, has a higher load capacity and tighter accuracy. Round rail offers distinct cost and reliability advantages for certain applications, but maximising those advantages depends on specifying the right bearing to minimise friction in each application.

Designers must often choose between plain bearings, often called bushings, and ball bearings. Within each type, they will have more options that impact price, performance, maintainability, and durability.

Understanding these options early in the design cycle will optimise the performance and cost of the linear motion application.

Read the full article in DPA's July 2024 issue

Written By Sophia Bell

Sophia Bell is the Group Editor of DPA, Connectivity, and PBSI. She joined the team in 2020 as Assistant Editor after achieving a First-Class Honours BA in English Literature and Film Studies from the University of East Anglia. In her current role, she leads the editorial strategy, driving digital growth and ensuring each title continues to deliver trusted, relevant insight for engineering and manufacturing professionals.