Motorized Rotation Stage, Vacuum Compatible, Stepper, URS50

URS Precision Stepper Motor Rotation Stages

The URS50BPPV6 Vacuum Compatible Rotation Stage provides precision 360° continuous motion in a low profile package. This version can be controlled with the motor mounted encoder and also in open loop. The stepper motor is directly attached to the worm screw using a proprietary bellows coupling that has a high torsional stiffness and is capable of rotation speeds up to 4°/s. This 0.125 N·m maximum torque stepper motor version is a more economical for less demanding applications. All URS rotation stages feature a proprietary 4-point contact ball bearing. The unique, 2-piece design of the URS provides a low-profile compact stage with exceptional stiffness, high reliability and outstanding wobble and eccentricity.

Note: The cable supplied with the stage is not vacuum compatible due to various feed-through configurations and customer preferences. Please contact Newport for vacuum compatible cable options.

Tilted Worm Screw

The tilted worm screw arrangement allows for 4 symmetric mounting holes as compared to other designs that only feature 2 or 3 mounting holes. This enables the URS-B stages to provide better support of higher or off-centered loads. Additionally, the flexible preloading system for the worm gear was improved to minimize backlash during operation.

URS50CPP Top View

Economical Micro-stepping Stepper Motor

The stepper motor version is a more economical version for less demanding applications. When used with motion controllers with high micro-step capability, like the XPS or ESP30x, low noise operation and very small incremental motions are guaranteed. The stepper motor versions do not use encoder feedback, but reach a position by the number of commanded steps and microsteps. For this purpose, the stepper motor is directly attached to the worm screw using a proprietary bellows coupling that has a high torsional stiffness, eliminating the need for a gear or belt drive. The high output torque of the stepper motor minimizes the risk of lost steps and provides good linearity between commanded microsteps and the actual motion of the stage.

Basic working operation of a micro-stepping stepper motor

Proprietary Ball Bearings

All URS-B rotation stages feature a proprietary ball bearing to provide a low-profile compact stage with exceptional stiffness, high reliability and low wobble and eccentricity.

Limit Switches

Except for the URS50 version, all URS stages feature adjustable limit switches to prevent over travel.

Specifications

Technical Specs

Angular Range
360°
Maximum Speed
4°/s
Minimum Incremental Motion
0.50 mdeg
Maximum Torque
0.125 N·m
Centered Load Capacity
50 N
Uni-directional Repeatability, Typical
±0.75 mdeg
Uni-directional Repeatability, Guaranteed
±2.0 mdeg
Bi-directional Repeatability, Typical
±1.2 mdeg
Bi-directional Repeatability, Guaranteed
±3.0 mdeg
Accuracy, Typical
±12 mdeg
Accuracy, Guaranteed
±20 mdeg
Wobble, Typical
±12 µrad
Wobble, Guaranteed
±25 µrad

Eccentricity, Typical
±3.0 µm
Transversal Compliance
100 µrad/N·m
Origin Repeatability
±25 mdeg
MTBF
20,000 h (25% load, 10% duty cycle)
Cable Length
3 m
Aperture Diameter
25.7 mm
Thread Type
M3
Vacuum Compatibility
10^-6 Torr
Maximum Power Consumption
10 W
Weight
0.7 kg
Compliance
RoHS 3, CE

Angular Range
360°
Maximum Speed
4°/s
Minimum Incremental Motion
0.50 mdeg
Maximum Torque
0.125 N·m
Centered Load Capacity
50 N
Uni-directional Repeatability, Typical
±0.75 mdeg
Uni-directional Repeatability, Guaranteed
±2.0 mdeg
Bi-directional Repeatability, Typical
±1.2 mdeg
Bi-directional Repeatability, Guaranteed
±3.0 mdeg
Accuracy, Typical
±12 mdeg
Accuracy, Guaranteed
±20 mdeg
Wobble, Typical
±12 µrad
Wobble, Guaranteed
±25 µrad

Eccentricity, Typical
±3.0 µm
Transversal Compliance
100 µrad/N·m
Origin Repeatability
±25 mdeg
MTBF
20,000 h (25% load, 10% duty cycle)
Cable Length
3 m
Aperture Diameter
25.7 mm
Thread Type
M3
Vacuum Compatibility
10^-6 Torr
Maximum Power Consumption
10 W
Weight
0.7 kg
Compliance
RoHS 3, CE

Resources & Downloads

3D Product Models

Download CAD Files

Technical Notes

URS Rotation Stages Limit Switches Position Change(124 kB, PDF)

2D Product Drawings

URS50BPPV6(749.5 kB, PDF)

Manuals

URS-BPPV6 Rotation Stage User's Manual(1.4 MB, PDF)

Literature

URS-BPPV6 Data Sheet.pdf(1.5 MB, PDF)
HP Laser Facilities Brochure(3.7 MB, PDF)
Vaccum Compatible Products Brochure(3.8 MB, PDF)

Related Products

Compatible Controllers

Based on axis required, choose a specific controller to pair with the stage. Along with an XPS-D or XPS-RLD controller, a driver module is required. Spindle mode is only available with XPS controllers.

Description	Compatibility	Avail.	Price
XPS-D Universal High-Performance 1-8 Axis Motion Controller and Driver¹XPS-D Universal High-Performance 1-8 Axis Motion Controller and Driver	UNIVERSAL
XPS-RLD Universal High-Performance 1-4 Axis Motion Controller and Driver²XPS-RLD Universal High-Performance 1-4 Axis Motion Controller and Driver	UNIVERSAL
ESP302 3-Axis DC and Stepper Motion ControllerESP302 3-Axis DC and Stepper Motion Controller	UNIVERSAL
SMC100PP³Motion Controller, Single-axis Stepper Motor	UNIVERSAL	FREE 2-day shipping on thousands of products on Newport.com Learn More	$1,452

Notes:

Requires XPS-DRV11 driver module
Requires XPS-DRV11 driver module
1.6°/s Max Speed when used with SMC100PP controller

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