BARDEN - PRECISION BEARINGS

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Together HQW Precision and The Barden Corporation produce many of the world's most sophisticated, precision bearing products, with a focus on challenging and complex applications in industries including aerospace & defence, nuclear energy, medical systems and robotics and vacuum technology.

Aerospace applications include a wide range of aircraft accessories and critical components, including:

• APU & starter generators 
• Primary actuation 
• Cabin air systems 
• Pumps & valves §Avioni

As a fully qualified supplier to many of the worlds leading defence contractors, our bearings can be found in a number of applications, including:

Missile ejection systems 

• Military gyroscopes 
• Missile fin actuation 
• Gimble systems 
• Stabilised platforms 
• Counter measures  

Reliability and quality essential, especially in extreme temperatures and operation in vacuum environments.

Applications include;

• Solar array actuators
• Manipulation arms
• Unmanned vehicles
• Satellite reaction wheel

Reliability and quality essential, especially in extreme temperatures and operation in   

High performance materials as standard for long lifetime, Low wear, maximized load rating and maintenance-free operation.

• Fluororubber (FKM) non-contact seals on both sides are available for almost all types to eliminate friction and wear. Also suitable for high temperatures.
• Bearings possible for outer diameter range 3 to 45mm.
• Possible types of pairing: universal, 
• back-to-back, face-to-face and tandem arrangement.

• Turbomolecular pumps are used at high speed to produce ultra high vacuum.
• Industrial uses include chemical analysis, semiconductor production and helium leak detectors.
• High performance materials and lubricants offering low outgassing rates.
• Super finished surfaces and optimized surface geometry. 
• Also manufacture of bearings for dry pumps and emergency touchdown bearings for magnetically supported spindles.

• Highly corrosion-resistant materials where bearings are subjected to aggressive steam or chemical cleaning processes.
• Wide range of food grade lubricants, including FDA & NSF licenced. Bearings are greased and packaged in a Class 7 clean room.
• Minimal maintenance and long life, particularly in high temperature and/or high speed, continuous running environments.
• Special sealing and greasing solutions, such as HQW ActiveLube®, to prevent contamination ingress and contain lubrication.

• Optimised internal geometry and surface finish resulting in low running friction and low noise and vibration properties.
• Ceramic (silicon nitride) balls for wear resistance and resistance to electrical currents.
• Withstands heavy radial loads and moderate thrust loads in both directions.

• Used for motion control in industrial and specialist robotic systems.
• Industrial uses include automotive production lines, dispensing systems, chemical processing and food & beverage production.
• High levels of accuracy, efficiency and reliability required.
• ABEC 7/9 (ISO P4/P2) tolerance standards.

• Superior material selection, including corrosion resistant steels (SV30), low wear ceramic balls and high performance cages.
• Sealing options for protection against contamination.
• Runs at speeds of up to 500,000 rpm but must stay cool enough to avoid injury to dentist or patient.
• Manufactured to ABEC9/ISO P2 and assembled, tested and packaged in a Class 7 clean room.
• Designed for high and low speed dental drill turbines.

• Applications include medical robotics, such as flexible arms for laser scalpels used in cosmetic surgery, bone saws and drills which are used in hospitals for specialist surgery. 
• Advances in today's medical technology mean component precision is vital and bearing reliability essential.
• All assembly, testing and packing operations take place in onsite clean rooms to comply with stringent hygiene requirements. 

• Special bearing innovations range from standard bearings with modified dimensions and/or features, to intricate assemblies and integrated components.
•  Nuclear Energy 
• Pressurised Water Reactor (PWR) control rod actuators - Bearings are used in the linear actuation system which positions the "control rods" into the fuel bundle. 
• The bearings must not fail! In emergency situations the control rods are dropped into the fuel bundle to absorb reactor heat.
• Steel deep groove ball bearings, supplied with full traceability of materials. Bearings manufactured and controlled under aerospace procedures.  
• Engineering teams work alongside customers to develop unique designs to meet application requirements and solve functional problems.