SMI has been recognized within North America as the #1 distributor for NB linear bearings once again. SMI is the leading distributor for top quality linear motion components for Thomson, Igus, NB and other manufacturers.

The quality of our Linear Ball Busing® Bearings can help improve your product while reducing the cost. SMI carries an extensive line of open and closed linear bushings, plain bearings; self-aligning ball bushings and Thomson Super Ball Bushing and Super Smart Ball Bushing® Bearings.

Self-Aligning Linear Ball Bushings (Closed and Open)
Our closed self-aligning bushing is considered a high performance bushing with three times the load capacity, and the capability of providing up to 27 times the normal life of a conventional ball bushing. Key benefits of the closed self-aligning bushing is; increased load capacity, longer travel life, self-aligning capability, floating integral wiper seal, clearance adjustable, and cost effective.

Non Self-Aligning Linear Ball Bushings (Closed and Open)
These ball bushings are produced form a solid steel outer cylinder. The ball bushings incorporate either a patented all steel hardened seamless ball retainer or an industrial strength resin retainer.

Round and Square Flanged Linear Bushings
This design enables various mounting methods other than conventional pillow blocks and press fit ball bushings. They feature a compact design with excellent rigidity and high accuracy. Standard and anti-corrosion options are available. Metallic retainers (for use in harsh environments and low acoustic) and low cost resin retainers also available. These bushings are fully compatible with a variety of shaft types. The raceway surface is precision ground providing low friction when compared to other linear motions mechanisms.

Flange Type Linear Bushings

Linear Plain Bearings

Non Self-Aligning Linear Ball Bushings

Self-Aligning Linear Ball Bushing® Bearings