Motorized Rotation Stage, Stepper, Continuous 360° Motion, URS75

URS Precision Stepper Motor Rotation Stages

The URS75BPP Rotation Stage provides precision 360° continuous motion in a low profile package. It meets the requirements of numerous research and industrial applications and is directly compatible with our VP, XM, GTS and other series of linear stages. This 0.5 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.

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
40°/s
Minimum Incremental Motion
0.20 mdeg
Maximum Torque
0.5 N·m
Centered Load Capacity
200 N
Uni-directional Repeatability, Typical
±0.35 mdeg
Uni-directional Repeatability, Guaranteed
±1.0 mdeg
Bi-directional Repeatability, Typical
±4.4 mdeg
Bi-directional Repeatability, Guaranteed
±6.0 mdeg
Accuracy, Typical
±8 mdeg
Accuracy, Guaranteed
±15 mdeg
Wobble, Typical
±12 µrad
Wobble, Guaranteed
±25 µrad

Eccentricity, Typical
±0.30 µm
Transversal Compliance
30 µrad/N·m
Origin Repeatability
±20 mdeg
MTBF
20,000 h (25% load, 10% duty cycle)
Cable Length
3 m
Aperture Diameter
30 mm
Thread Type
M3
Maximum Power Consumption
20 W
Weight
1.7 kg
Compliance
RoHS 3, CE

Angular Range
360°
Maximum Speed
40°/s
Minimum Incremental Motion
0.20 mdeg
Maximum Torque
0.5 N·m
Centered Load Capacity
200 N
Uni-directional Repeatability, Typical
±0.35 mdeg
Uni-directional Repeatability, Guaranteed
±1.0 mdeg
Bi-directional Repeatability, Typical
±4.4 mdeg
Bi-directional Repeatability, Guaranteed
±6.0 mdeg
Accuracy, Typical
±8 mdeg
Accuracy, Guaranteed
±15 mdeg
Wobble, Typical
±12 µrad
Wobble, Guaranteed
±25 µrad

Eccentricity, Typical
±0.30 µm
Transversal Compliance
30 µrad/N·m
Origin Repeatability
±20 mdeg
MTBF
20,000 h (25% load, 10% duty cycle)
Cable Length
3 m
Aperture Diameter
30 mm
Thread Type
M3
Maximum Power Consumption
20 W
Weight
1.7 kg
Compliance
RoHS 3, CE

Resources & Downloads

3D Product Models

Download CAD Files

2D Product Drawings

URS75BPP(668.2 kB, 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
1.0 mdeg when used with SMC100PP controller

Accessories

	Compare	Description	Compatibility	Drawings, CAD & Specs	Avail.	Price
		URS75TPMounting Plate, Solid Top, URS75 Series, 1/4-20 Threaded Holes	IMPERIAL		FREE 2-day shipping on thousands of products on Newport.com Learn More	$219
		URS75P1Lens Barrel Adapter, B25.4, URS75 Stages	UNIVERSAL			$195

Similar

Description	Compatibility	Avail.	Price
SR50PPMotorized Rotation Stage, Compact, 360°, Micro Step Drive Stepper, SR Series	UNIVERSAL	FREE 2-day shipping on thousands of products on Newport.com Learn More	$3,219
URS100BPPMotorized Rotation Stage, Stepper, Continuous 360° Motion, URS100	UNIVERSAL	FREE 2-day shipping on thousands of products on Newport.com Learn More	$5,392
PR50PPMotorized Rotation Stage, Compact, 360°, Micro Step Drive Stepper	UNIVERSAL	FREE 2-day shipping on thousands of products on Newport.com Learn More	$2,214

Frequently Purchased Together

	Compare	Description	Compatibility	Drawings, CAD & Specs	Avail.	Price
		SMC100PPMotion Controller, Single-axis Stepper Motor	UNIVERSAL		FREE 2-day shipping on thousands of products on Newport.com Learn More	$1,452