UTR-A Series Precision Apertured Rotation Stages are available in standard and low profile verisons.

UTR-A Series

Precision Steel Rotation Stages with Aperture

Steel construction, high load capacity
Lockable 360° coarse/4° fine motion
Better than 6-arc-second sensitivity
Available in four different sizes
Low-profile versions

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Overview
Specifications
Ordering
Drawings
Literature & Downloads
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Versatile UTR-A Series Precision Rotation Stages are ideal for fine-tuning angular orientation of any component after rotating it to an approximate angle. A center aperture permits convenient mounting and adjustment of rotating components in transmissive applications. Bearings are preloaded into precision-ground, tool steel races for a smooth, accurate trajectory with minimum eccentricity. Disengaging the side-mounted clutch knob permits continuous free rotation of the stage over 360°. Once the approximate angular orientation is obtained, a zero-backlash manual drive provides four degrees of fine adjustment range. Scale markings on the side of the rotation stage and a vernier on the stage body measure angular position with 1 arc min resolution (30 arc min for UTR46A ).
UTR Rotary Stages mount to UMR Series Linear Stages and other components with BR Series Bridles (included with each stage), which fit into the mounting collar around the circumference of the base. For mounting UTR stages beneath UMR stages, an adaptor is required. Also, for mounting to other positioners and tables, the optional PBN base plate may be used. Stages can also be mounted to components with the tapped mounting holes on the stage’s bottom surface (see PBN Base Plates for hole pattern). Components may be mounted to the top of the rotation stage via English or metric tapped holes.

Adaptors for mounting UTR stages beneath UMR stages.

Mounting UTR Stages beneath UMR Stage using adaptor.

A UTR rotation stage attached to a UMR linear stage using BR bridles.

	UTR46A	UTR80A	UTR120A	UTR160A
Travel (coarse/fine)	360 °/4 °	360 °/4 °	360 °/4 °	360 °/4 °
Graduations	2 °	1 °	1 °	1 °
GraduationsVernier (arc min)	15	1	1	1
Sensitivity ()
Wobble, Guaranteed (µrad)	±100	±60	±50	±40
Max Centered Load [lb (N)]	6.7 (30)	45 (200)	112 (500)	180 (800)
Weight [lb (kg)]	0.6 (0.3)	1.8 (0.8)	4.6 (2.1)	11 (5)

Load Characteristics

	UTR46A	UTR80A	UTR80SA	UTR120A	UTR160A
Centered Load Capacity, Cz (N)	30	200	200	500	800
Construction Parameter, a (mm)	20	40	40	60	80
Transverse Stiffness, kα (µrad/Nm)	130	30	30	20	5
Maximum Forward Rotation Torque +Mz (Nm)	0.65	3.6	3.6	10	30
Maximum Reverse Rotation Torque -Mz (Nm)	0.2	0.5	0.5	1.5	3.5

Q	Off-centered load must be ≤Cz / (1 + D/a)
Cz	Centered load capacity perpendicular to bearing system
D	Cantilever distance in mm
a	Construction parameter
kα	Transverse stiffness
+Mz	Maximum forward rotation torque
-Mz	Maximum reverse rotation torque

Model	Description	avail raw	Availability	price raw	Price	Qty. MULTI ADD
M-UTR120A	UTR Precision Rotation Stage, Aperture, 119.5mm Dia, ±4° Fine Adjustment, Metric	0	In Stock	1135	$1,135.99	ADD
M-UTR160A	UTR Precision Rotation Stage, Aperture, 159mm Dia, ±4° Fine Adjustment, Metric	0	In Stock	1535	$1,535.99	ADD
M-UTR46A	UTR Precision Rotation Stage, Aperture, 46mm Dia, ±4° Fine Adjustment, Metric	10	10 Weeks	639	$639.99	ADD
M-UTR46SA	UTR Precision Rotation Stage, Aperture, Low Profile, 46mm Dia, ±4° Fine, Metric	0	In Stock	639	$639.99	ADD
M-UTR80A	UTR Precision Rotation Stage, Aperture, 79mm Dia, ±4° Fine Adjustment, Metric	0	In Stock	755	$755.99	ADD
M-UTR80SA	UTR Precision Rotation Stage, Aperture, Low Profile, 79mm Dia, ±4° Fine, Metric	0	In Stock	755	$755.99	ADD
UTR120A	UTR Precision Rotation Stage, Aperture, 4.70 in. Dia, ±4° Fine Adjustment	0	In Stock	1135	$1,135.99	ADD
UTR160A	UTR Precision Rotation Stage, Aperture, 6.26 in. Dia, ±4° Fine Adjustment	0	In Stock	1535	$1,535.99	ADD
UTR2MR.120	Mounting Adapter, UTR120 & UTR120A to UMR Series, 3mm Clearance	5	5 Weeks	131	$131.99	ADD
UTR2MR.160	Mounting Adapter, UTR160 & UTR160A to UMR Series, 4mm Clearance	5	5 Weeks	163	$163.99	ADD
UTR2MR.46N	Mounting Adapter, UTR46 & UTR46A to UMR Series, 4mm Clearance	5	5 Weeks	57	$57.99	ADD
UTR2MR.46S	Mounting Adapter, UTR46S & UTR46SA to UMR Series, 4mm Clearance	4	4 Weeks	57	$57.99	ADD
UTR2MR.80	Mounting Adapter, UTR80 & UTR80A to UMR Series, 3mm Clearance	5	5 Weeks	73	$73.99	ADD
UTR46A	UTR Precision Rotation Stage, Aperture, 1.81 in Dia, ±4° Fine Adjustment	0	In Stock	639	$639.99	ADD
UTR46SA	UTR Precision Rotation Stage, Aperture, Low Profile, 1.81 in Dia, ±4° Fine	0	In Stock	639	$639.99	ADD
UTR80A	UTR Precision Rotation Stage, Aperture, 3.11 in. Dia, ±4° Fine Adjustment	0	In Stock	755	$755.99	ADD
UTR80SA	UTR Precision Rotation Stage, Aperture, Low Profile, 3.11 in. Dia, ±4° Fine	0	In Stock	755	$755.99	ADD

Model UTR46A/80A

Model UTR46SA/80SA

	Thread		Dimensions [in. (mm)]
Model (Metric)	A	B	C	øD	E	F	øG	H	J	K	øL
UTR46A	8-32 (M4)		1.000 (25.0)	0.291 (7.4)	1.00 (25.4)	2.98 (75.8)	1.81 (46)	1.97 (50)	3.50 (89)	1.30 (33)	0.71 (18)
UTR46SA	8-32 (M4)		1.000 (25.0)	0.291 (7.4)	1.00 (25.4)	2.98 (75.8)	1.81 (46)	1.97 (50)	3.50 (89)	0.91 (23)	0.87 (22)
UTR80A	8-32 (M4)	1/4-20 (M6)	2.000 (50.0)	0.295 (7.5)	1.98 (50.4)	3.98 (101.1)	3.11 (79)	3.15 (80)	4.72 (120)	1.81 (46)	1.063-20 (M30 x 0.75)
UTR80SA	8-32 (M4)		2.000 (50.0)	0.295 (7.5)	1.98 (50.4)	3.98 (101.1)	3.11 (79)	3.15 (80)	4.72 (120)	0.91 (23)	1.97 (50)

Model UTR120A

	Thread	Dimensions [in. (mm)]
Model (Metric)	A	B	C	D
UTR120A	1/4-20 (M6)	1.000 (25.0)	2.000 (50.0)	3.000 (75.0)

Model UTR160A

	Thread	Dimensions [in. (mm)]
Model (Metric)	A	B
UTR160A	1/4-20 (M6)	1.000 (25.0)

Newport Resource e-Catalogs *

*e-Catalog pages include the most current information available at the time of printing.

Technical References

RoHS Compliance Certificate (139 KB)