Motorized Rotation Stage, DC Motor, Continuous 360° Motion, URS50

The URS50BCC Rotation Stage provides precision 360° continuous motion in a low profile package. It meets the requirements of numerous research and industrial applications. This DC motor version is the recommended choice for applications requiring accurate bi-directional positioning. The high-torque DC motor provides the highest dynamic speed range and allows for rotating speeds up to 20°/s. 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. 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 stages to provide better support of higher or off-centered loads. Additionally, the flexible preloading system for the worm gear was improved to guarantee a minimum backlash operation with an MTBF of 20,000 hours.

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

High Torque DC Motor with Ultra-High Resolution Feedback

The URS75BCC, URS100BCC and URS150BCC feature (not included on the URS50BCC) an ultra-high resolution 8,000 cts/rev rotary encoder with index pulse for precision homing and are recommended for applications requiring accurate bi-directional positioning. For the tightest position control, the rotary encoder is mounted directly on the worm screw. This eliminates most of the possible error sources associated with indirect read feedback devices. The high torque of some DC motor versions provides the highest dynamic speed range and allows for rotating speeds up to 80°/sec. The URS50BCC is the smallest version, and its motor encoder feature provides a very compact and easy to integrate version which can rotate up to 20°/s with 100 N maximum load capacity.

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
20°/s
Minimum Incremental Motion
1.0 mdeg
Maximum Torque
0.25 N·m
Centered Load Capacity
100 N
Uni-directional Repeatability, Typical
±0.30 mdeg
Uni-directional Repeatability, Guaranteed
±1.0 mdeg
Bi-directional Repeatability, Typical
±0.5 mdeg
Bi-directional Repeatability, Guaranteed
±2.0 mdeg
Accuracy, Typical
±10 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
Maximum Power Consumption
10 W
Weight
0.7 kg
Compliance
RoHS 3, CE

Angular Range
360°
Maximum Speed
20°/s
Minimum Incremental Motion
1.0 mdeg
Maximum Torque
0.25 N·m
Centered Load Capacity
100 N
Uni-directional Repeatability, Typical
±0.30 mdeg
Uni-directional Repeatability, Guaranteed
±1.0 mdeg
Bi-directional Repeatability, Typical
±0.5 mdeg
Bi-directional Repeatability, Guaranteed
±2.0 mdeg
Accuracy, Typical
±10 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
Maximum Power Consumption
10 W
Weight
0.7 kg
Compliance
RoHS 3, CE

Resources & Downloads

Application Notes

A Diamond in the Rough: Industrial Diamond Cutting and Processing with a 4-Axis Precision Motion System(517.1 kB, PDF)

Drawings And Cad

URS50BCC(975.6 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.

Description	Compatibility	Price
xps-d-universal-motion-controller¹XPS-D Universal High-Performance 1-8 Axis Motion Controller and Driver	UNIVERSAL
xps-rl-universal-high-performance-motion-controller²XPS-RLD Universal High-Performance 1-4 Axis Motion Controller and Driver	UNIVERSAL
esp301-3-axis-dc-and-stepper-motion-controllerESP302 3-Axis DC and Stepper Motion Controller	UNIVERSAL
SMC100CCMotion Controller, Single-axis DC Motor	UNIVERSAL	$1,383

Notes:

Requires XPS-DRV11 driver module
Requires XPS-DRV11 driver module

Accessories

	Compare	Description	Compatibility	Drawings, CAD & Specs	Avail.	Price
		MSCABLE-10Cable, DB-25 Male to DB-15 Female, 10 m Length	UNIVERSAL			$682
		A-1.25-1RRRetaining Ring, 19.2 mm ID, 1.063-20 Thread	UNIVERSAL			$6.50

Similar

Description	Compatibility	Price
RVS80CCMotorized Rotation Stage, 80 mm, High-Speed DC Drive	UNIVERSAL	$7,017
RV120CCMotorized Rotation Stage, 120 mm, High-Speed DC Drive	UNIVERSAL	$8,899
SR50CCMotorized Rotation Stage, Compact, 360°, 4°/s, DC Servo Motor	UNIVERSAL	$3,027

Frequently Purchased Together

Description	Compatibility	Price
SMC-PS80Power Supply, SMC100 Series, 80W, 100-240 VAC, 47-63 Hz, 1.9 A max.	UNIVERSAL	$176
SMC-USBUSB Interface, Includes USB to COM Port Adapter & RS-232-C Cable	UNIVERSAL	$136
SMC100CCMotion Controller, Single-axis DC Motor	UNIVERSAL	$1,383
XPS-DRV11Motion Controller Card, Universal, Stepper, DC, and Linear Motors	UNIVERSAL	$856
LTA-HSMotorized Actuator, High Speed, 50 mm Travel, 3/8-40 Thread	UNIVERSAL	$2,463
ESP302-3NMotion Controller & Driver, 3-Axis, Ethernet, RS232	UNIVERSAL	$5,853