UMR Series Double-Row Ball Bearing Linear Stages feature a robust steel construction and double-row ball bearings that provide excellent, smooth, linear travel while also capable of carrying high loads. The moving carriage is preloaded by two springs, ensuring constant contact with the micrometer and backlash-free motion. All micrometers sold separately.
Linear, single axis, double row ball-bearing stages
Widest selection of sizes and travel ranges
Low-profile steel construction for high stability and rigidity
Actuators are not included. Please see specifications for recommended actuators. We also offer larger Single-Row Bearing UMR12 Stages with longer travel.
UMR12 single-row ball bearing stages are located here.
Features
Double-Row Ball Bearings for Smooth Travel & Heavier Loads
Ball bearing slides provide smoother translation from a rolling motion. Ball bearings are captured in guide ways by means of hardened steel rods with a gothic profile. This creates only two points of contact for minimal friction, and provides extremely smooth travel for even the smallest of incremental movements. Fewer points of contact also mean less differential slip and provide higher load capacities compared to the 4-point contact of other ball-bearing designs. The lower differential slip keeps friction and wear minimal, adding to the durability and lifetime of these stages.
The type of bearing way, ball diameter, and number of balls affect the load capacity of a stage.
Low Profile, A Wide Variety of Sizes
UMR Series Linear Stages are offered with translation from 0.2 in (5 mm) all the way to 3.15 in (80 mm). UMR3, UMR5 and UMR8 stages feature double-row ball bearings and are ideal for applications with large centered load capacity (Cz) in a horizontal configuration. UMR12 stages feature single-row ball bearings and are ideal for applications with higher vertical load capacity (+Cx) when mounted in vertical orientation.
Center Aperture Versions
UMR stages with a center aperture are available for applications needing optical access such as laser imaging or microscopes.
2-Axis Assembly
UMR Series stages can be easily stacked together to provide 2 axes of translation for a low profile XY system or as a foundation for more complex multi-axis systems. This video demonstrates how to assemble a 2-axis translation system with 2x UMR8.25 stages.
MVN Vertical Stage Compatibility
UMR stages are compatible with MVN Series Vertical Stages allowing you to build XZ or XYZ stage stacks with a horizontal oriented mounting platform.
A MVN50 vertical stage is shown on top of a UMR5.25 linear stage.
UTR Rotation Stage Compatibility
UMR linear stages are compatible with UTR Series Rotation Stages allowing you to built X or XY stage stacks with a rotatable mounting platform.
A UTR80 rotation stage is shown mounted on top of UMR8.25 linear stage.
XYZ Configurations
Abundant tapped hole patterns on these stages are included to provide the most options for mounting components on the stage mounting surface. Two stages can be easily stacked to provide XY translation (except the UMR5.5). Z configuration can be assembled using the EQ Series Angle Brackets.
Two XYZ configurations of (3) UMR5.25 linear stages with EQ50 angle brackets are shown. Note: In the vertical orientation with the actuator pointed up, the stage's vertical axial load capacity is reduced.
Adjustable System
We offer Adjustable Right Angle Brackets which allow one arm of an angle bracket to vary in length. This can be useful in adjusting the center of rotation of a UTR rotation stage mounted orthogonal to a UMR stage. It is also beneficial to simply adjust the length of one arm of a UMR stage mounted orthogonal to another UMR stage.
A six-axis manual positioning system is shown using two UMR8.25s, two TGN80s, a UTR80S, and a MVN80.
Compatible Actuators
UMR stages can achieve 1 µm sensitivity when used with BM series standard micrometer heads or 0.1 µm sensitivity with DM series differential micrometers. Select models can also be driven by motorized actuators. Actuators are not included. Refer to the specification tables above to see compatible actuators and required adapters for each UMR stage.
Compatible Mounting Accessories
The carriage of UMR stages can be locked by a carriage lock that mounts in the stage body opposite the actuator. Two are required for fixed positioning. Brackets and bases are available for creating multi-axis configurations of UMR stages. PBN series steel base plates are used to connect stages with bottom-surface mounting holes to support structures that are inaccessible from below, such as breadboards and optical tables. EQ series angle brackets are made with an open-corner design to allow more mounting space and easier access to adjustments. They are offered in exterior (-E) and interior (-I) verions, for building XZ or XYZ motion control in flexilble configurations. Adjustable angle brackets are also available.
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