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

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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. 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
Centered load capacities up to 200 lb

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Products

Compare	Model	Compatibility	rankScore		Maximum Stage Travel	Platform Size	Availability	Price	Brand
UMR3.5 Linear Stage, Double-Row Ball Bearings, 0.20 in. Travel, 8-32 $331 In Stock	UMR3.5 Linear Stage, Double-Row Ball Bearings, 0.20 in. Travel, 8-32	IMPERIAL	1.0	1.0	5 mm	29 x 38.5 mm	In Stock	$331	Newport
UMR5.5 Linear Stage, Double-Row Ball Bearings, 0.20 in., 4-40, 8-32 and 1/4-20 $460 In Stock	UMR5.5 Linear Stage, Double-Row Ball Bearings, 0.20 in., 4-40, 8-32 and 1/4-20	IMPERIAL	1.0	2.0	5 mm	50 x 58 mm	In Stock	$460	Newport
UMR5.16 Linear Stage, Double-Row Ball Bearings, 0.63 in., 4-40, 8-32 and 1/4-20 $336 In Stock	UMR5.16 Linear Stage, Double-Row Ball Bearings, 0.63 in., 4-40, 8-32 and 1/4-20	IMPERIAL	1.0	3.0	16 mm	50 x 58 mm	In Stock	$336	Newport
UMR5.25 Linear Stage, Double-Row Ball Bearings, 0.98 in., 4-40, 8-32 and 1/4-20 $460 In Stock	UMR5.25 Linear Stage, Double-Row Ball Bearings, 0.98 in., 4-40, 8-32 and 1/4-20	IMPERIAL	1.0	5.0	25 mm	50 x 68 mm	In Stock	$460	Newport
UMR8.4 Linear Stage, Double-Row Ball Bearings, 0.16 in., 8-32 and 1/4-20 $434 3 Weeks	UMR8.4 Linear Stage, Double-Row Ball Bearings, 0.16 in., 8-32 and 1/4-20	IMPERIAL	1.0	7.0	4 mm	80 x 92 mm	3 Weeks	$434	Newport
UMR8.25 Linear Stage, Double-Row Ball Bearings, 0.98 in., 8-32 and 1/4-20 $434 In Stock	UMR8.25 Linear Stage, Double-Row Ball Bearings, 0.98 in., 8-32 and 1/4-20	IMPERIAL	1.0	8.0	25 mm	80 x 92 mm	In Stock	$434	Newport
UMR8.51 Linear Stage, Double-Row Ball Bearings, 2.01 in., 8-32 and 1/4-20 $839 In Stock	UMR8.51 Linear Stage, Double-Row Ball Bearings, 2.01 in., 8-32 and 1/4-20	IMPERIAL	1.0	10.0	50 mm	80 x 118 mm	In Stock	$839	Newport
M-UMR3.5 Linear Stage, Double-Row Ball Bearing, 5 mm Travel, M4 $331 In Stock	M-UMR3.5 Linear Stage, Double-Row Ball Bearing, 5 mm Travel, M4	METRIC	1.0	15.0	5 mm	29 x 38.5 mm	In Stock	$331	Newport
M-UMR5.5 Linear Stage, Double-Row Ball Bearing, 5 mm Travel, M3, M4 and M6 $460 In Stock	M-UMR5.5 Linear Stage, Double-Row Ball Bearing, 5 mm Travel, M3, M4 and M6	METRIC	1.0	16.0	5 mm	50 x 58 mm	In Stock	$460	Newport
M-UMR5.16 Linear Stage, Double-Row Ball Bearing, 16 mm Travel, M3, M4 and M6 $336 In Stock	M-UMR5.16 Linear Stage, Double-Row Ball Bearing, 16 mm Travel, M3, M4 and M6	METRIC	1.0	17.0	16 mm	50 x 58 mm	In Stock	$336	Newport
M-UMR5.25 Linear Stage, Double-Row Ball Bearing, 25 mm Travel, M3, M4 and M6 $460 In Stock	M-UMR5.25 Linear Stage, Double-Row Ball Bearing, 25 mm Travel, M3, M4 and M6	METRIC	1.0	19.0	25 mm	50 x 68 mm	In Stock	$460	Newport
M-UMR8.4 Linear Stage, Double-Row Ball Bearing, 4 mm Travel, M4 and M6 $434 In Stock	M-UMR8.4 Linear Stage, Double-Row Ball Bearing, 4 mm Travel, M4 and M6	METRIC	1.0	21.0	4 mm	80 x 92 mm	In Stock	$434	Newport
M-UMR8.25 Linear Stage, Double-Row Ball Bearing, 25 mm Travel, M4 and M6 $434 In Stock	M-UMR8.25 Linear Stage, Double-Row Ball Bearing, 25 mm Travel, M4 and M6	METRIC	1.0	22.0	25 mm	80 x 92 mm	In Stock	$434	Newport
M-UMR8.51 Linear Stage, Double-Row Ball Bearing, 51 mm Travel, M4 and M6 $839 In Stock	M-UMR8.51 Linear Stage, Double-Row Ball Bearing, 51 mm Travel, M4 and M6	METRIC	1.0	24.0	50 mm	80 x 118 mm	In Stock	$839	Newport

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Notes:

Actuators are not included. Please see specifications for recommended actuators.
We also offer larger Single-Row Bearing UMR12 Stages with longer travel.

Specifications

Models	UMR3.5	UMR5.5	UMR5.16	UMR5.25	UMR8.4
Maximum Stage Travel	5 mm	5 mm	16 mm	25 mm	4 mm
Centered Normal Load Capacity	600 N	600 N	600 N	600 N	900 N
Vertical Axial Load Capacity	40 N	40 N	40 N	40 N	100 N
Angular Deviation	<100 µrad	<100 µrad	<200 µrad	<200 µrad	<200 µrad
Compliance in Roll	0.7 mrad/Nm	0.1 mrad/Nm	0.1 mrad/Nm	0.1 mrad/Nm	0.05 mrad/Nm
Compliance in Pitch	0.3 mrad/Nm	0.2 mrad/Nm	0.2 mrad/Nm	0.2 mrad/Nm	0.05 mrad/Nm
Compliance in Yaw	0.5 mrad/Nm	0.2 mrad/Nm	0.2 mrad/Nm	0.2 mrad/Nm	0.05 mrad/Nm
Material	Steel	Steel	Steel	Steel	Steel
Bearings	Double-Row Ball Bearings	Double-Row Ball Bearings	Double-Row Ball Bearings	Double-Row Ball Bearings	Double-Row Ball Bearings
Platform Size	29 x 38.5 mm	50 x 58 mm	50 x 58 mm	50 x 68 mm	80 x 92 mm
Drive Location	Center drive	Center drive	Center drive	Center drive	Center drive
Thread Type	8-32	4-40, 8-32 and 1/4-20	4-40, 8-32 and 1/4-20	4-40, 8-32 and 1/4-20	8-32 and 1/4-20
Recommended BM Micrometer	BM11.5	BM11.5	BM11.16	BM11.25	BM17.04N
Recommended DM Differential Micrometer	DM11-5	DM11-5	DM11-16	DM11-25	DM17-4

Models	UMR8.25 ¹	UMR8.51 ²	UMR12.40 ³	UMR12.63 ⁴	UMR12.80
Maximum Stage Travel	25 mm	50 mm	40 mm	63 mm	80 mm
Centered Normal Load Capacity	900 N	900 N	400 N	400 N	400 N
Vertical Axial Load Capacity	100 N	100 N	440 N	440 N	440 N
Angular Deviation	<200 µrad	150 µrad	<200 µrad	<200 µrad	<200 µrad
Compliance in Roll	0.05 mrad/Nm	0.05 mrad/Nm	0.02 mrad/Nm	0.02 mrad/Nm	0.02 mrad/Nm
Compliance in Pitch	0.05 mrad/Nm	0.05 mrad/Nm	0.02 mrad/Nm	0.02 mrad/Nm	0.02 mrad/Nm
Compliance in Yaw	0.05 mrad/Nm	0.05 mrad/Nm	0.02 mrad/Nm	0.02 mrad/Nm	0.02 mrad/Nm
Material	Steel	Steel	Alloy Steel	Alloy Steel	Alloy Steel
Bearings ⁵	Double-Row Ball Bearings	Double-Row Ball Bearings	Single-Row Ball Bearings	Single-Row Ball Bearings	Single-Row Ball Bearings
Drive Location	Center drive	Center drive	Center drive	Center drive	Center drive
Platform Size	80 x 92 mm	80 x 118 mm	120 x 142.5 mm	120 x 166.5 mm	120 x 210.5 mm
Thread Type	8-32 and 1/4-20	8-32 and 1/4-20	10-24 and 1/4-20	10-24 and 1/4-20	10-24 and 1/4-20
Recommended BM Micrometer	BM17.25	BM17.51	BM25.40	BM25.63	BM32.80
Recommended DM Differential Micrometer	DM17-25
Recommended LTA Motorized Actuator	LTA-HL	LTA-HS	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.
Requires ADAPT-BM25-375 adapter when used with LTA-HS motorized actuator.
UMR12 single-row ball bearing stages are located here.

Specifications

Models	UMR3.5	UMR5.5	UMR5.16	UMR5.25	UMR8.4
Maximum Stage Travel	5 mm	5 mm	16 mm	25 mm	4 mm
Centered Normal Load Capacity	600 N	600 N	600 N	600 N	900 N
Vertical Axial Load Capacity	40 N	40 N	40 N	40 N	100 N
Angular Deviation	<100 µrad	<100 µrad	<200 µrad	<200 µrad	<200 µrad
Compliance in Roll	0.7 mrad/Nm	0.1 mrad/Nm	0.1 mrad/Nm	0.1 mrad/Nm	0.05 mrad/Nm
Compliance in Pitch	0.3 mrad/Nm	0.2 mrad/Nm	0.2 mrad/Nm	0.2 mrad/Nm	0.05 mrad/Nm
Compliance in Yaw	0.5 mrad/Nm	0.2 mrad/Nm	0.2 mrad/Nm	0.2 mrad/Nm	0.05 mrad/Nm
Material	Steel	Steel	Steel	Steel	Steel
Bearings	Double-Row Ball Bearings	Double-Row Ball Bearings	Double-Row Ball Bearings	Double-Row Ball Bearings	Double-Row Ball Bearings
Platform Size	29 x 38.5 mm	50 x 58 mm	50 x 58 mm	50 x 68 mm	80 x 92 mm
Drive Location	Center drive	Center drive	Center drive	Center drive	Center drive
Thread Type	8-32	4-40, 8-32 and 1/4-20	4-40, 8-32 and 1/4-20	4-40, 8-32 and 1/4-20	8-32 and 1/4-20
Recommended BM Micrometer	BM11.5	BM11.5	BM11.16	BM11.25	BM17.04N
Recommended DM Differential Micrometer	DM11-5	DM11-5	DM11-16	DM11-25	DM17-4

Models	UMR8.25 ¹	UMR8.51 ²	UMR12.40 ³	UMR12.63 ⁴	UMR12.80
Maximum Stage Travel	25 mm	50 mm	40 mm	63 mm	80 mm
Centered Normal Load Capacity	900 N	900 N	400 N	400 N	400 N
Vertical Axial Load Capacity	100 N	100 N	440 N	440 N	440 N
Angular Deviation	<200 µrad	150 µrad	<200 µrad	<200 µrad	<200 µrad
Compliance in Roll	0.05 mrad/Nm	0.05 mrad/Nm	0.02 mrad/Nm	0.02 mrad/Nm	0.02 mrad/Nm
Compliance in Pitch	0.05 mrad/Nm	0.05 mrad/Nm	0.02 mrad/Nm	0.02 mrad/Nm	0.02 mrad/Nm
Compliance in Yaw	0.05 mrad/Nm	0.05 mrad/Nm	0.02 mrad/Nm	0.02 mrad/Nm	0.02 mrad/Nm
Material	Steel	Steel	Alloy Steel	Alloy Steel	Alloy Steel
Bearings ⁵	Double-Row Ball Bearings	Double-Row Ball Bearings	Single-Row Ball Bearings	Single-Row Ball Bearings	Single-Row Ball Bearings
Drive Location	Center drive	Center drive	Center drive	Center drive	Center drive
Platform Size	80 x 92 mm	80 x 118 mm	120 x 142.5 mm	120 x 166.5 mm	120 x 210.5 mm
Thread Type	8-32 and 1/4-20	8-32 and 1/4-20	10-24 and 1/4-20	10-24 and 1/4-20	10-24 and 1/4-20
Recommended BM Micrometer	BM17.25	BM17.51	BM25.40	BM25.63	BM32.80
Recommended DM Differential Micrometer	DM17-25
Recommended LTA Motorized Actuator	LTA-HL	LTA-HS	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.
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.

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. 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. 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.

UMR Stage	Carriage Lock	Base Plate	Angle Bracket
UMR3.5	CL3-5 FP3-5	M-PBN5	339232 339233
UMR5.5	CL6-5	M-PBN5	EQ50-E EQ50-I 338233
UMR5.16	CL6-16
UMR5.25	CL6-25
UMR8.4	CL12-4	M-PBN8	EQ80-E EQ80-I 338234
UMR8.25	CL12-25
UMR8.51	CL12-51

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.

Low Profile, A Wide Variety of Sizes

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

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
UMR3.5	CL3-5 FP3-5	M-PBN5	339232 339233
UMR5.5	CL6-5	M-PBN5	EQ50-E EQ50-I 338233
UMR5.16	CL6-16
UMR5.25	CL6-25
UMR8.4	CL12-4	M-PBN8	EQ80-E EQ80-I 338234
UMR8.25	CL12-25
UMR8.51	CL12-51

UMR Stage Load Characteristics

Accessories

Motorized Actuator Adapters

Description	Compatibility	Avail.	Price
ADAPT-TRA25 Actuator Adapter, TRA25, Opto-Mechanical Components	UNIVERSAL	3 Weeks	$90
ADAPT-BM17-375 Motorized Actuator Adapter, VP-25AA, LTA-HS or PZA12 to UMR8, TGN80 or MVN80	UNIVERSAL	In Stock	$71
ADAPT-BM25-375 Motorized Actuator Adapter, VP-25AA, LTA-HS or PZA12 to UMR12, TGN120 or MVN120	UNIVERSAL	In Stock	$71

Product Comparison

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

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

Overview

Products

Notes:

Specifications

Notes:

Notes:

Features

Double-Row Ball Bearings for Smooth Travel & Heavier Loads

Low Profile, A Wide Variety of Sizes

Center Aperture Versions

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

Low Profile, A Wide Variety of Sizes

Center Aperture Versions

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

Accessories

Motorized Actuator Adapters

Resources

Technical Notes

Selection Guides

Technical Notes

Selection Guides

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