Thin Section Bearings for Radar Turntables

Application

Typical Radar & Antenna Rotary Applications

Radar Turntables

Large-bore compact support for azimuth rotation and tracking platforms.

Antenna Positioning Systems

Stable support for azimuth and elevation mechanisms carrying combined loads.

Electro-Optical Tracking Platforms

Low-runout support for sensor turrets and tracking gimbals.

Communication Antenna Drives

Smooth rotation for communication, observation and tracking antenna systems.

Portable Tracking Equipment

Lightweight compact bearings for mobile and deployable rotary systems.

Requirements

Application Design Requirements

Large Bore & Compact Height

Cables, rotary joints and drive components may pass through the central opening.

Pointing Accuracy & Runout

Tracking platforms require controlled radial and axial error.

Combined Loads & Moment

Wind, antenna weight and overhung payloads create moment loads.

Low-Speed Smooth Motion

Tracking may require smooth low-speed rotation without stick-slip.

Outdoor Environment

Dust, moisture, temperature variation and maintenance cycles must be considered.

Types

Recommended Bearing Structures

Deep Groove Thin Section Ball Bearings

Support radial loads and moderate axial loads with low friction and compact cross-section.

Angular Contact Thin Section Ball Bearings

Suitable for combined loads, higher rotational accuracy and axial positioning requirements.

Four-Point Contact Thin Section Ball Bearings

Compact single-bearing solution for radial, axial and tilting moment loads.

Super Duplex Angular Contact Ball Bearings

High rigidity and precision for paired or integrated angular contact arrangements.

Flanged Thin Section Bearings

Simplified mounting and positioning for compact housings and lightweight rotary modules.

Selection

Selection Information

01

Information Customers Can Provide

Turntable or antenna type
Azimuth / elevation axis
Existing bearing number or dimensions
Radial, axial and moment loads
Speed and tracking profile
Runout and pointing accuracy
Outdoor environment and drawing

02

CHG Assessable Content

Suitable bearing structure
Preload and stiffness direction
Precision and runout direction
Friction and lubrication options
Seal and corrosion protection direction
Flange or mounting customization
Replacement compatibility

ADVANTAGES

Why Choose CHG

Large-Bore Compact Support

Thin cross-sections allow cables and drive components to pass through the center.

Stable Tracking Motion

Solutions can be reviewed for pointing accuracy, stiffness and smooth low-speed motion.

Outdoor Condition Review

Sealing, lubrication and corrosion protection can be selected according to the environment.

Custom Mounting Structures

Flange, dimensions, preload and mounting holes can be customized according to drawings.

Optical Equipment

Precision support for optical gimbals and tracking instruments.

Precision Rotary Mechanisms

Thin section bearings for rotary tables and positioning mechanisms.

Aerospace Equipment

Compact bearings for airborne antenna and optical payload systems.

Lightweight Equipment

Solutions for portable and deployable rotary systems.

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