UMR High Load, Double-Row Ball Bearing Steel Linear Stages with Aperture

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Overview

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. A center aperture alloows for optical access for applications like laser imaging or microscopes.

Linear, single axis, double row ball-bearing stages
Aperture in stage platform for optical access
Low-profile steel construction for high stability and rigidity
Centered load capacities up to 200 lb

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Products

Compare	Model	Compatibility	rankScore	ranking		Maximum Stage Travel	Platform Size	Aperture Diameter	Availability	Price	Brand
UMR5.16A Linear Stage, Aperture, Double-Row Bearing, 0.63 in., 4-40 and 8-32 $399 In Stock	UMR5.16A Linear Stage, Aperture, Double-Row Bearing, 0.63 in., 4-40 and 8-32	IMPERIAL	160.49796	0.009505	4.0	16 mm	50 x 58 mm	6 mm	In Stock	$399	Newport
UMR5.25A Linear Stage, Double-Row Ball Bearings, Aperture, 0.98 in., 4-40 and 8-32 $486 In Stock	UMR5.25A Linear Stage, Double-Row Ball Bearings, Aperture, 0.98 in., 4-40 and 8-32	IMPERIAL	160.49796	0.003666667	6.0	25 mm	50 x 68 mm	6 mm	In Stock	$486	Newport
UMR8.25A Linear Stage, Double-Row Ball Bearings, Aperture, 0.98 in. Travel, 8-32 and 1/4-20 $553 In Stock	UMR8.25A Linear Stage, Double-Row Ball Bearings, Aperture, 0.98 in. Travel, 8-32 and 1/4-20	IMPERIAL	-1.0		9.0	25 mm	80 x 92 mm	25 mm	In Stock	$553	Newport
M-UMR5.16A Linear Stage, Double-Row Ball Bearing, Aperture, 16 mm Travel, M3 and M4 $399 In Stock	M-UMR5.16A Linear Stage, Double-Row Ball Bearing, Aperture, 16 mm Travel, M3 and M4	METRIC	160.49796	0.018416667	18.0	16 mm	50 x 58 mm	6 mm	In Stock	$399	Newport
M-UMR5.25A Linear Stage, Double-Row Ball Bearing, Aperture, 25 mm Travel, M3 and M4 $486 In Stock	M-UMR5.25A Linear Stage, Double-Row Ball Bearing, Aperture, 25 mm Travel, M3 and M4	METRIC	160.49796	0.011666667	20.0	25 mm	50 x 68 mm	6 mm	In Stock	$486	Newport
M-UMR8.25A Linear Stage, Double-Row Ball Bearing, Aperture, 25 mm Travel, M4 and M6 $553 In Stock	M-UMR8.25A Linear Stage, Double-Row Ball Bearing, Aperture, 25 mm Travel, M4 and M6	METRIC	-1.0		23.0	25 mm	80 x 92 mm	25 mm	In Stock	$553	Newport
M-UMR8.51A Linear Stage, Double-Row Ball Bearing, Aperture, 51 mm Travel, M4 and M6 $828 2 Weeks	M-UMR8.51A Linear Stage, Double-Row Ball Bearing, Aperture, 51 mm Travel, M4 and M6	METRIC	-1.0		25.0	50 mm	80 x 118 mm	25 mm	2 Weeks	$828	Newport

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Specifications

Models	UMR5.16A	UMR5.25A	UMR8.25A ¹	M-UMR8.51A ²	UMR12.40A ³
Maximum Stage Travel	16 mm	25 mm	25 mm	50 mm	40 mm
Centered Normal Load Capacity	600 N	600 N	900 N	900 N	400 N
Vertical Axial Load Capacity	40 N	40 N	100 N	100 N	440 N
Angular Deviation	<100 µrad	<100 µrad	<100 µrad	<100 µrad	<200 µrad
Compliance in Roll	0.1 mrad/Nm	0.1 mrad/Nm	0.05 mrad/Nm	0.05 mrad/Nm	0.02 mrad/Nm
Compliance in Pitch	0.2 mrad/Nm	0.2 mrad/Nm	0.05 mrad/Nm	0.05 mrad/Nm	0.02 mrad/Nm
Compliance in Yaw	0.2 mrad/Nm	0.2 mrad/Nm	0.05 mrad/Nm	0.05 mrad/Nm	0.02 mrad/Nm
Material	Steel	Steel	Steel	Steel	Alloy Steel
Bearings ⁴	Double-Row Ball Bearings	Double-Row Ball Bearings	Double-Row Ball Bearings	Double-Row Ball Bearings	Single-Row Ball Bearings
Drive Location	Center drive	Center drive	Center drive	Center drive	Center drive
Platform Size	50 x 58 mm	50 x 68 mm	80 x 92 mm	80 x 118 mm	120 x 142.5 mm
Aperture Diameter	6 mm	6 mm	25 mm	25 mm	36 mm
Thread Type	4-40 and 8-32	4-40 and 8-32	8-32 and 1/4-20	M4 and M6	10-24 and 1/4-20
Recommended BM Micrometer	BM11.16	BM11.25	BM17.25	BM17.51	BM25.40
Recommended DM Differential Micrometer	DM11-16	DM11-25	DM17-25
Recommended LTA Motorized Actuator			LTA-HL	LTA-HS	LTA-HS
Recommended TRA Motorized Actuator			TRA25CC or TRA25PPD
Recommended TRB Motorized Actuator			TRB25CC or TRB25PPD

Notes:

Requires ADAPT-TRA25 adapter when used with TRA25 or TRB25 motorized actuator.
Requires ADAPT-BM17-375 adapter when used with LTA-HS motorized actuator.
Requires ADAPT-BM25-375 adapter when used with LTA-HS motorized actuator.
UMR12 single-row ball bearing stages are located here.

Specifications

Models	UMR5.16A	UMR5.25A	UMR8.25A ¹	M-UMR8.51A ²	UMR12.40A ³
Maximum Stage Travel	16 mm	25 mm	25 mm	50 mm	40 mm
Centered Normal Load Capacity	600 N	600 N	900 N	900 N	400 N
Vertical Axial Load Capacity	40 N	40 N	100 N	100 N	440 N
Angular Deviation	<100 µrad	<100 µrad	<100 µrad	<100 µrad	<200 µrad
Compliance in Roll	0.1 mrad/Nm	0.1 mrad/Nm	0.05 mrad/Nm	0.05 mrad/Nm	0.02 mrad/Nm
Compliance in Pitch	0.2 mrad/Nm	0.2 mrad/Nm	0.05 mrad/Nm	0.05 mrad/Nm	0.02 mrad/Nm
Compliance in Yaw	0.2 mrad/Nm	0.2 mrad/Nm	0.05 mrad/Nm	0.05 mrad/Nm	0.02 mrad/Nm
Material	Steel	Steel	Steel	Steel	Alloy Steel
Bearings ⁴	Double-Row Ball Bearings	Double-Row Ball Bearings	Double-Row Ball Bearings	Double-Row Ball Bearings	Single-Row Ball Bearings
Drive Location	Center drive	Center drive	Center drive	Center drive	Center drive
Platform Size	50 x 58 mm	50 x 68 mm	80 x 92 mm	80 x 118 mm	120 x 142.5 mm
Aperture Diameter	6 mm	6 mm	25 mm	25 mm	36 mm
Thread Type	4-40 and 8-32	4-40 and 8-32	8-32 and 1/4-20	M4 and M6	10-24 and 1/4-20
Recommended BM Micrometer	BM11.16	BM11.25	BM17.25	BM17.51	BM25.40
Recommended DM Differential Micrometer	DM11-16	DM11-25	DM17-25
Recommended LTA Motorized Actuator			LTA-HL	LTA-HS	LTA-HS
Recommended TRA Motorized Actuator			TRA25CC or TRA25PPD
Recommended TRB Motorized Actuator			TRB25CC or TRB25PPD

Notes:

Requires ADAPT-TRA25 adapter when used with TRA25 or TRB25 motorized actuator.
Requires ADAPT-BM17-375 adapter when used with LTA-HS motorized actuator.
Requires ADAPT-BM25-375 adapter when used with LTA-HS motorized actuator.
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.

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. An MVN50 vertical stage is shown on top of 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.

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.

Easily Combined for Multi-axis Motion

The UMR Steel Linear Stages are compatible with TGN Series Tilt Platforms, UTR Steel Rotation Stages, and MVN Precision Vertical Stages of matching size (for example, UMR8.25 with TGN80 and UTR80). They can be combined to provide multi-axis motion and can be easily adapted to fit a specific system's needs. In the picture, 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. PBN series steel base plates are used to mount UMR stages on an optical breadboard or table. EQ series angle brackets available in exterior (-E) and interior (-I) versions enable multi-axis configurations of UMR stages. Adjustable angle brackets are also available.

UMR Stage	Carriage Lock	Base Plate	Angle Bracket
UMR5.16A	CL6-16	M-PBN5	EQ50-E EQ50-I 338233
UMR5.25A	CL6-25	M-PBN5	EQ50-E EQ50-I 338233
UMR8.25A	CL12-25	M-PBN8	EQ80-E EQ80-I 338234
M-UMR8.51A	CL12-51	M-PBN8	EQ80-E EQ80-I 338234

UMR Stage Load Characteristics

Features

Double-Row Ball Bearings for Smooth Travel & Heavier Loads

The type of bearing way, ball diameter, and number of balls affect the load capacity of a stage.

2-Axis Assembly

MVN Vertical Stage Compatibility

UTR Rotation Stage Compatibility

XYZ Configurations

Adjustable System

Easily Combined for Multi-axis Motion

Compatible Actuators

Compatible Mounting Accessories

UMR Stage	Carriage Lock	Base Plate	Angle Bracket
UMR5.16A	CL6-16	M-PBN5	EQ50-E EQ50-I 338233
UMR5.25A	CL6-25	M-PBN5	EQ50-E EQ50-I 338233
UMR8.25A	CL12-25	M-PBN8	EQ80-E EQ80-I 338234
M-UMR8.51A	CL12-51	M-PBN8	EQ80-E EQ80-I 338234

Product Comparison

UMR High Load, Double-Row Ball Bearing Steel Linear Stages with Aperture

UMR High Load, Double-Row Ball Bearing Steel Linear Stages with Aperture

Overview

Products

Specifications

Notes:

Notes:

Features

Double-Row Ball Bearings for Smooth Travel & Heavier Loads

2-Axis Assembly

MVN Vertical Stage Compatibility

UTR Rotation Stage Compatibility

XYZ Configurations

Adjustable System

Easily Combined for Multi-axis Motion

Compatible Actuators

Compatible Mounting Accessories

UMR Stage Load Characteristics

Double-Row Ball Bearings for Smooth Travel & Heavier Loads

2-Axis Assembly

MVN Vertical Stage Compatibility

UTR Rotation Stage Compatibility

XYZ Configurations

Adjustable System

Easily Combined for Multi-axis Motion

Compatible Actuators

Compatible Mounting Accessories

UMR Stage Load Characteristics

Resources

Technical Notes

Selection Guides

Technical Notes

Selection Guides

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