XYZ-Axis Manual Linear Translation Stages

Selecting a stage, it's a task to be done Now with an XYZ axis, three dimensions get fun

Bearing types, they come in many shapes and size But which one is the best, it's something to advise

Ball bearings, they offer high precision and low cost But in vibration, it's true that the balls can get lost

Crossed roller bearings, they offer accuracy exact But in a dusty environment are hard to retract

Dovetail bearings, offer high load capacity it's true But they may not be the best choice of high precision for you

EXC™ bearings, the best of the bunch Now your decision is made let's go get some lunch

So when selecting a linear stage, it's important to choose The right bearing of course with OptoSigma you can't lose

Each type has its own benefits and drawbacks, just ask a friend So take time to research, it will pay off in the end

Selection Guide for Stage Bearings

Bearing Type	General Performance Category	Description	Advantages	Bearing Contact	Primary Stage Material	Standard Platform Sizes
Precision EXC™ Bearing	Best Performance	EXC™ bearing technology is used exclusively in our highest performing stages. The bearing ways are processed directly into the body of the stage rather than being separate parts.	Travel straightness Load capacity Stiffness Lowest profile	Extended-Arc Contact, Rolling	Hardened Tool Steel or Stainless Steel (vacuum compatible)	□(25, 40, 60, 65, 80, 100, 120) mm
Crossed-Roller Bearing	High Performance	Crossed Roller bearing stages provided a good balance of straightness and load capacity	Largest platform options Longest travel range options	Line Contact, Rolling	Aluminum	□(25, 40, 60, 65, 80) mm
Dovetail Bearing	Good Performance	Dovetail Bearing stages Best for use in OEM Set-and-Lock applications	Load capacity Shock loads	Planar Contact, Sliding	Brass	□(15, 25, 40, 60, 65) mm