Rotation Bearing Assembly for Swivel Bases

Product Specifications

Technical details and manufacturing context for Rotation Bearing Assembly

Definition

The rotation bearing assembly is a critical component within a swivel base, providing the interface that allows controlled rotational movement between the stationary base and the rotating platform. It consists of bearing elements, raceways, and mounting hardware designed to support axial and radial loads while minimizing friction during rotation. The assembly utilizes rolling elements (balls or rollers) that move between inner and outer raceways, converting sliding friction into rolling friction to enable smooth rotation. Proper preload and lubrication ensure minimal resistance while maintaining precise alignment and load capacity. Materials on file include bearing steel, hardened alloy steel, and polymer composites. Key parameters include bore diameter (20–200 mm, ISO 15), outer diameter (50–400 mm, ISO 15), height (15–120 mm, ISO 15), dynamic load rating (10–500 kN, ISO 76), static load rating (20–800 kN, ISO 76), max speed (50–500 rpm), radial runout (0.01–0.05 mm, ISO 492), axial runout (0.02–0.08 mm, ISO 492), operating temperature (-40–85 °C), IP rating (IP54–IP65, IEC 60529), and weight (0.5–50 kg). These values are reference ranges and must be confirmed for the specific model and application. The assembly is designed for use in swivel bases where controlled rotation is required, such as in industrial machinery, turntables, or positioning systems. Selection depends on load requirements, speed, environmental conditions, and mounting constraints. Verification of actual performance and compliance with standards should be done with the legal manufacturer or supplier. Maintenance signals include increased friction, noise, or play, indicating wear or lubrication issues. Failure boundaries include exceeding load ratings or operating temperature limits, which may cause permanent deformation or failure.

Working Principle

The assembly utilizes rolling elements (balls or rollers) that move between inner and outer raceways, converting sliding friction into rolling friction to enable smooth rotation. Proper preload and lubrication ensure minimal resistance while maintaining precise alignment and load capacity. The design supports axial and radial loads, and the raceways are hardened to resist wear. The rolling elements are typically made of bearing steel or hardened alloy steel, while polymer composites may be used for cages or seals. The assembly is mounted between the stationary base and rotating platform, with mounting hardware securing it in place. The preload is set to eliminate play while allowing free rotation, and lubrication reduces friction and heat generation. The operating principle is fundamental to the function of swivel bases, providing controlled movement with minimal effort.

Common Materials

Bearing steel, Hardened alloy steel, Polymer composites

Technical Parameters

Parameter	Typical range	Notes & selection driver
Bore Diameter	20–200 mm	Matches shaft size; standard series availableISO 15
Outer Diameter	50–400 mm	Determines housing fitISO 15
Height	15–120 mm	Affects load capacity and stiffnessISO 15
Dynamic Load Rating	10–500 kN	Higher for heavy-duty applicationsISO 76
Static Load Rating	20–800 kN	Exceeding may cause permanent deformationISO 76
Max Speed	50–500 rpm	Limited by lubrication and heat
Radial Runout	0.01–0.05 mm	Tighter for precision applicationsISO 492
Axial Runout	0.02–0.08 mm	Critical for smooth rotationISO 492
Operating Temperature	-40–85 °C	Seals and grease limit range
IP Rating	IP54–IP65	Higher for dusty or wet environmentsIEC 60529
Weight	0.5–50 kg	Depends on size and material

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

Inner Race Part
Provides the mounting surface for the rotating shaft and contains the raceway for rolling elements

Material: Hardened bearing steel
Outer Race Part
Provides the stationary mounting surface and contains the complementary raceway for rolling elements

Material: Hardened bearing steel
Rolling Elements Part
Balls or rollers that facilitate smooth rotation by converting sliding friction to rolling friction

Material: Bearing steel or ceramic
Cage/Retainer Part
Maintains proper spacing between rolling elements and prevents contact between them

Material: Steel, brass, or polymer
Seals/Shields Part
Protect the bearing interior from contaminants and retain lubrication

Material: Rubber, polymer, or metal
Mounting Hardware Part
Bolts, nuts, and washers for securing the assembly within the swivel base structure

Material: Carbon steel or alloy steel

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Rotation Bearing Assembly.

Applied To / Applications

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

Swivel Base

View system integration details

Rotating Frame

View system integration details

Manufacturers of Rotation Bearing Assembly

Manufacturer profiles associated with Rotation Bearing Assembly.

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Frequently Asked Questions

What is the typical application of a rotation bearing assembly?

It is used in swivel bases to enable controlled rotational movement between a stationary base and a rotating platform, common in industrial machinery, turntables, and positioning systems.

What materials are commonly used in this assembly?

Bearing steel, hardened alloy steel, and polymer composites are listed as materials on file. The specific material grade should be confirmed with the manufacturer.

How do I select the right rotation bearing assembly?

Consider load requirements (dynamic and static), speed, operating temperature, environmental conditions (IP rating), and mounting dimensions. Verify all parameters with the manufacturer for your specific application.

What are the maintenance signals for this assembly?

Increased friction, noise, or play during rotation may indicate wear or lubrication issues. Regular inspection and proper lubrication are recommended. Exceeding load or temperature limits can cause permanent deformation.

Data Basis

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

Preliminary Technical Classification

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pressure:	Up to 10 MPa (static), 5 MPa (dynamic)
other spec:	Max rotational speed: 100 RPM, Load capacity: 50 kN axial, 25 kN radial
temperature:	-40°C to +120°C

Rotation Bearing Assembly

Product Specifications

Industry Taxonomies & Aliases

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards