Rotation Unit for Probe Heads | Precision Rotational Component

Product Specifications

Technical details and manufacturing context for Rotation Unit

Definition

The Rotation Unit is a critical component of the Probe Head assembly that provides precise rotational motion around a defined axis. It typically consists of a motor, bearings, shaft, and control interface, allowing the probe or sensor to rotate to specific angles for measurement, inspection, or data acquisition tasks in industrial and scientific equipment. The unit is designed for integration into probe heads used in coordinate measuring machines, inspection systems, and similar applications where controlled angular positioning is required. It supports a rated torque range of 0.5–5 N·m, which determines the maximum load for positioning, and a rotation speed of 0–60 rpm for continuous operation. Positioning accuracy is ±0.05°, and repeatability is ±0.02°, ensuring consistent positioning for scanning tasks. The unit operates within an operating pressure of 1.0–1.6 MPa and an operating temperature range of -10–60 °C. It offers a protection class of IP54–IP65 (per IEC 60529) for dusty or wet environments. Supply voltage is 24 V DC ±10%. Maximum radial load is 500–2000 N, and maximum axial load is 300–1000 N; exceeding these may cause bearing failure. Weight ranges from 2–8 kg, affecting mounting and handling. Materials on file include stainless steel, aluminum alloy, and ceramic bearings; stainless steel is used for corrosive environments. The unit is available in aluminum or stainless steel versions. All values are reference ranges and must be confirmed for the specific model and application with the legal manufacturer or supplier.

Working Principle

The unit operates by converting electrical signals into mechanical rotation through a motor, often a stepper or servo motor. A control system regulates the rotation speed, direction, and position, while precision bearings ensure smooth, accurate movement with minimal vibration or backlash. The motor receives commands from the control interface, which processes input signals and adjusts the motor's operation to achieve the desired angular position. The bearings support the shaft and reduce friction, allowing for precise and repeatable movements. The control system may use feedback from encoders or other sensors to verify the actual position and correct any deviations. This closed-loop control ensures high accuracy and repeatability, making the unit suitable for demanding measurement and inspection tasks.

Common Materials

Stainless steel, Aluminum alloy, Ceramic bearings

Technical Parameters

Parameter	Typical range	Notes & selection driver
Rated Torque	0.5–5 N·m	Determines the maximum load for positioning
Rotation Speed	0–60 rpm	Maximum speed for continuous operation
Positioning Accuracy	±0.05 °	Critical for scanning applications
Repeatability	±0.02 °	Ensures consistent positioning
Operating Temperature	-10–60 °C	Outside this range performance may degrade
Protection Class	IP54–IP65	IP65 for dusty or wet environmentsIEC 60529
Supply Voltage	24 ±10% V DC	Standard industrial voltage
Max Radial Load	500–2000 N	Exceeding may cause bearing failure
Max Axial Load	300–1000 N	Exceeding may cause bearing failure
Weight	2–8 kg	Affects mounting and handling
Material	Aluminum/Stainless Steel	Stainless steel for corrosive environments

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Motor
Provides rotational force and control

Material: Steel/copper windings
Shaft Part
Transmits rotation and supports probe attachment

Material: Stainless steel
Bearings
Enable smooth rotation with minimal friction

Material: Ceramic/steel
Encoder
Measures and provides feedback on rotational position

Material: Glass/steel

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Probe Head

View system integration details

Manufacturers of Rotation Unit

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Frequently Asked Questions

What is the typical application of a Rotation Unit?

The Rotation Unit is typically used in probe heads for coordinate measuring machines and inspection systems, enabling controlled rotation of a probe or sensor for precise angular positioning during measurement or scanning tasks.

What are the key performance parameters to consider?

Key parameters include rated torque (0.5–5 N·m), rotation speed (0–60 rpm), positioning accuracy (±0.05°), repeatability (±0.02°), operating pressure (1.0–1.6 MPa), operating temperature (-10–60 °C), protection class (IP54–IP65), supply voltage (24 V DC ±10%), and maximum radial/axial loads (500–2000 N and 300–1000 N respectively). Always verify these values for your specific model.

What materials are available for the Rotation Unit?

Materials on file include stainless steel, aluminum alloy, and ceramic bearings. Stainless steel is recommended for corrosive environments, while aluminum offers a lighter option. The choice depends on the application requirements.

How should I verify the suitability of a Rotation Unit for my application?

You should confirm all technical specifications, including torque, speed, accuracy, load capacities, and environmental ratings, with the legal manufacturer or supplier. Ensure the unit meets your specific requirements and complies with relevant standards such as IEC 60529.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	0 to 10 bar
other spec:	Max rotational speed: 100 RPM, Load capacity: 50 kg
temperature:	-20°C to 80°C

Rotation Unit

Product Specifications

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