NewBee Machinery is a professional machinery parts manufacturer providing high quality precision bearings, high-quality non-standard transmission components, and intelligent CNC equipment and more.
NewBee Machinery is a professional machinery parts manufacturer providing high quality precision bearings, high-quality non-standard transmission components, and intelligent CNC equipment and more.
Type-A thin-section angular contact ball bearings are ultra-slim constant cross-section rotary components with inclined raceways forming fixed contact angles (15°,25°,40° customizable).They are specially engineered to bear combined radial and unidirectional axial loads simultaneously,perfect for compact,lightweight,high-precision limited-space equipment.
Core Technical Specifications
Contact Angle Options:15°,25°,40° for different thrust load demands.Size Range:Inner diameter 25.4–508mm,constant cross-section 10×10–15×15mm.Materials:Rings & rolling elements (52100 bearing steel,440C/316 stainless steel,ceramic hybrid);Cages (nylon,brass,stainless steel).Precision Grades:ABEC-1/3/5 (P0,P6,P5) aerospace ultra-precision standards.Sealing & Lubrication:Open,shielded,fully sealed structures;standard aerospace anti-oxidation grease,vacuum low-outgassing solid lubricants for high-altitude low-pressure environments.Operating Temperature:-40℃ ~ 120℃,customized extreme low-temperature lubricant for high-altitude cruise.Lead Time:Standard models ship within 5–15 working days;aerospace customized preloaded bearings with special coatings require negotiated delivery schedules.
Helicopter equipment covers all rotary aviation devices relying on rotor lift,including civilian transport helicopters,medical rescue helicopters,military attack helicopters,reconnaissance drones,cargo-lift helicopters and training rotorcraft.The core rotary assemblies that determine helicopter flight safety include main rotor swashplates,rotor head pitch adjustment joints,tail rotor transmission bearings,flight control actuator hinges,landing gear steering and lock components,airborne optoelectronic pod gimbals,radar rotary bases,engine auxiliary gearbox shafts and cabin door swing mechanisms.Helicopters face far harsher working conditions than fixed-wing aircraft:continuous high-frequency rotor vibration during hover and maneuver flight,frequent alternating heavy tilting loads,drastic temperature changes between high altitude and low ground,high humidity and salt fog at coastal airports,and persistent shock loads from takeoff/landing.Conventional thick bearings are bulky,heavy,prone to elastic deformation under cyclic vibration,and easy to suffer lubricant failure after long-term shock operation.Any bearing jamming,clearance increase or wear will directly lead to rotor control failure,tail vibration out of control and major flight accidents.Therefore,all key rotary structures of helicopters must adopt thin section angular contact ball bearings with light weight,high anti-vibration rigidity and stable precision under alternating composite loads.
Constant Cross-Section Design
Space & Weight Saving:Unlike standard ISO series bearings-where cross-sectional height increases as bore size increases-thin section bearings maintain a fixed,extremely narrow cross-section regardless of the shaft diameter.
Compact Footprint:This constant geometry drastically reduces envelope dimensions,overall assembly weight,and rotational inertia without sacrificing shaft diameter size.
Contact Angle Geometry:The inner and outer ring raceways are displaced along the bearing axis,forming 15°,25° or 40° inclined contact areas.
Combined Loads:The angular contact structure can bear radial force and unidirectional axial thrust at the same time; larger contact angles provide stronger axial bearing capacity.
Duplex Configurations:Back-to-back (DB),Face-to-Face (DF) paired mounting can be adopted to bear bidirectional axial loads and improve overall structural rigidity for helicopter rotor assemblies.
Precision & High Rigidity
Preload Capability:Light,medium and heavy preload options eliminate internal bearing clearance,suppress micro-vibration under long-term cyclic shock loads,and maintain stable positioning accuracy.
Smooth Rotational Accuracy:Ultra-precision superfinished raceways guarantee ultra-low rotational runout,no rotor shaking during helicopter hovering.
Low Friction & Low Torque
Small Rolling Elements:Miniature steel balls reduce centrifugal force and rolling friction torque.
High-Speed Efficiency:Low heat generation during high-frequency reciprocating swing,preventing grease carbonization in helicopter narrow sealed cabins.
Robotics and Industrial Automation
Robot Joints & Articulations:Multi-axis robot arms require compact bearings embedded directly into tight joint spaces.Their large bore-to-cross-section ratio allows hollow shafts to pass straight through for internal wiring and pneumatic lines.
Rotary Actuators & Index Tables:Preloaded angular contact configurations eliminate internal clearance and backlash,ensuring precise,repeatable positioning during high-speed,repetitive cycles.
Aerospace,Defense and Aviation Equipment
Helicopter Core Rotor Systems:Main rotor swashplate bearings,rotor head pitch adjustment rotary joints,tail rotor drive swing supports,rotor hub auxiliary pivot components.
Airborne Optoelectronic & Radar Gimbals:Surveillance pod rotary bases,airborne radar azimuth and elevation turntables,target tracking swing mechanisms.
Fixed-wing Aircraft Flight Control:Flap,aileron and elevator actuator hinges,landing gear steering joints,engine auxiliary transmission shafts.
Spacecraft & UAV Platforms:Satellite solar panel unfolding hinges,small rotor UAV rotor assemblies,reconnaissance drone camera turrets.
CT & MRI Rotary Gantries:Large-diameter thin bearings support stable high-speed rotation of scanning frames.
Minimally Invasive Surgical Robots:Ultra-slim joint bearings for high-precision surgical manipulators.
Semiconductor Manufacturing & Vacuum Equipment
Wafer Handling Robots:Low-outgassing thin bearings for vacuum cleanroom wafer transfer arms.
Precision Rotary Index Stages:Compact thin bearings for lithography and detection equipment.
Ultra-Lightweight Design Reduces Rotor Load & Boost Payload:Helicopter rotor power is limited,and every extra gram of component weight increases rotor power consumption and reduces effective passenger/cargo load.Thin section angular contact ball bearings cut bearing weight by over 40% compared to same-bore standard bearings.The weight reduction of dozens of rotor and flight control rotary parts collectively lowers rotor centrifugal load,saves fuel consumption,and improves the carrying capacity of rescue and transport helicopters.
Ultra-Thin Cross-Section Fits Narrow Rotor Cavity Layout:Helicopter rotor hubs,swashplate cabins and tail transmission compartments have extremely compact built-in spaces with dense hydraulic pipelines,control cables and structural brackets.Conventional thick bearings cannot be installed without redesigning rotor structures,while the fixed slim cross-section of thin angular contact bearings perfectly matches the narrow assembly space of rotor core components,shortening helicopter prototype development and structural modification cycles.
Preloaded Zero-Clearance Structure Suppresses Rotor Vibration:Helicopters generate continuous high-frequency vibration and alternating overturning loads during hovering,climbing and turning.Preloaded thin section angular contact bearings completely eliminate internal play,restrain micro-deformation and swing of swashplate and pitch control shafts under cyclic shock loads,reduce overall fuselage vibration,avoid rotor flutter and improve flight stability and pilot comfort.
Composite Load Resistance Adapts Complex Rotor Dynamic Forces:Single bearing simultaneously bears radial self-weight of rotor components,strong unidirectional axial thrust from hydraulic pitch push rods and alternating tilting moment caused by rotor airflow.It replaces multiple sets of matched ordinary bearings,simplifies rotor mechanical transmission structures,reduces the number of wearing spare parts and cuts helicopter routine maintenance costs.
Wide-Temp Anti-Oxidation Lubrication Adapts All Flight Scenarios:Custom aviation anti-rust,low-volatility grease and fluoropolymer full sealing structures resist high-altitude low-pressure grease volatilization,coastal salt fog corrosion and ground high-temperature tarmac environments.Stable lubrication performance from -40℃ plateau low temperature to tropical hot climate ensures no bearing jamming during long-distance patrol and rescue missions.
Excellent Anti-Fatigue Performance Extends Rotor Service Life:Deep induction hardened raceways reach HRC55–62 hardness,with outstanding shock and vibration fatigue resistance,enduring millions of rotor cyclic swing cycles within the full service life of the helicopter.Frequent bearing replacement and helicopter ground maintenance downtime are greatly reduced,improving the attendance rate of military helicopters and emergency rescue rotorcraft.
Newbeetrans is a professional manufacturer specializing in aerospace-grade customized thin section bearings for all types of civilian and military helicopter rotor assemblies,flight control actuators and airborne optoelectronic gimbal equipment.
Helicopter Aviation Customization Service:Supply preloaded anti-vibration thin bearings,stainless steel salt-fog resistant variants,extreme temperature aviation special lubrication and anti-corrosion coating models; helicopter prototype customized samples can be finished within 10–15 working days per technical drawings.
Strict Aviation-Grade Inspection:All inner and outer rings and steel balls adopt ultra-precision superfinishing process; every finished bearing undergoes long-cycle alternating vibration fatigue test,low-temperature aging test and salt spray corrosion inspection to meet aviation component reliability standards.
Stable Global Shipment:Mass stock of standard Type A thin series supports fast delivery; full cross-border air & sea logistics services for global helicopter manufacturers and aviation maintenance factories.
Authoritative Quality Certification:Products comply with ISO 9001 aerospace component standards,and SGS vacuum,temperature and salt fog resistance test reports can be provided upon customer request.
Global Aviation Technical Support:Professional bearing engineering team provides load calculation,contact angle selection and duplex preload matching scheme design for all helicopter rotor and flight control rotary mechanisms.
For technical specifications,pricing,or custom bearing solutions:
Email:paul@newbeetrans.com
Website:www.newbeetrans.com
WhatsApp
sales@newbeetrans.com
+8615090185276