Actuators containing Rolling Elements derive their efficiency from either ball bearings or cross-roller bearings to handle load. In this category you will typically find products that exhibit good to very good straightness and moderate load carrying capability. Most products in this category have travels of 3" or less.
This category has the widest range of products. From the highest precision stage currently offered by SMI™, The X-TREME™, to standard ball slides. Micrometer driven ball slides are available in standard sizes or custom options are available upon request. Most ball bearing product can be retrofit with cross rollers for higher load capacity in the same envelope size. If exceptional load carrying capability and smoothness of travel is important, cross roller tables under the part number XRT is an extremely popular product.
Manual Short Travel Rolling Element Linear Actuators: