Product

ALM Linear Crossed
Roller Bearing Sets

High-performance linear motion solutions for precision-critical applications. ALM’s crossed roller bearing sets deliver exceptional accuracy, rigidity, and service life.

Delivers greater load capacity and longer life.
Crossed roller design delivers 2–25× load capacity and up to 5× the life of comparable ball bearings.
Handles loads from any direction with superior repeatability and minimal friction.
Designed for aerospace, defense, automation, semiconductor, and other high-precision industries.

Rails & rollers: Hardened tool steel (Rc59–61), precision ground flat, square, and parallel.
“V” ways ground parallel to base/sides within ±0.000020"/in.
Rails height matched to ±0.0001” for precise mounting.
Roller retainers: Captive or non-captive; endpieces prevent overtravel.

Alternating 90° roller orientation for equal load distribution.
Larger contact area than ball bearings for greater load capacity.
Preloaded for zero sideplay, smooth movement, and low starting force.

Standard Crossed Roller Linear Bearings – Maximum load capacity and rigidity.
Low-Profile Crossed Roller Linear Bearings – Reduced height for tight spaces without compromising accuracy.

Special lengths, mounting hole patterns, corrosion-resistant coatings, vacuum-compatible builds, and alternative materials including stainless steel.

Available in Standard and Low-Profile

Standard Bearing

Standard Crossed Roller Linear Bearings

Low-Profile Crossed Roller Linear Bearings

Product 1

Standard Crossed Roller Slide Assemblies

Double–V Rail Sets & Low–Profile Slide Assemblies

Product 3

Motor Ready Linear Positioning Stage Products