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.
Spacecraft and satellites are all man-made orbital vehicles operating in near-Earth orbit,deep space and vacuum cosmic environments,covering communication satellites,Earth observation satellites,navigation satellites,space stations,lunar probes,deep-space exploration spacecraft,small cube satellites and manned space capsules.All spacecraft rely on dozens of ultra-precision rotary space mechanisms to complete orbital adjustment,Earth observation,signal transmission and space detection tasks.Core rotary assemblies include solar panel unfolding hinge bearings,satellite antenna azimuth & elevation gimbal supports,star tracker rotary mounts,optical filter wheel rotating frames,attitude control reaction wheel bearings,space robotic arm joint components,and payload detection turntables.Space operating environments are far harsher than ground aviation equipment: absolute vacuum,intense cosmic radiation,drastic alternating hot and cold temperature swings (-170℃ to 120℃),weightlessness,long-term zero-maintenance on-orbit operation,and tiny vibration interference that disturbs optical positioning.Conventional thick standard bearings have heavy mass,large volume,volatile ordinary lubricants,and severe thermal deformation under temperature alternation.Once bearing jitter,lubricant volatilization or stuck rotation occurs,satellite pointing accuracy will fail,communication signals will be interrupted,and the entire space mission will be paralyzed.Therefore,all core precision rotary mechanisms of spacecraft and satellites must adopt thin section angular contact ball bearings with ultra-light weight,vacuum-adaptable lubrication and micron-level long-term stable rotation accuracy.
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.
High Axial (Thrust) Load Handling in One Direction
Contact Angle Geometry:The inner and outer ring raceways are displaced relative to each other along the bearing axis,typically creating a 15°,25° or 40° contact angle.
Combined Loads:This geometry enables the bearing to support high thrust (axial) loads in one direction,alongside concurrent radial loads.
Duplex Configurations:To support thrust loads in both directions or to increase system stiffness,these bearings are frequently mounted in duplex pairs-Back-to-Back (DB),Face-to-Face (DF),or Tandem (DT).
Precision & High Rigidity
Preload Capability:Thin section angular contact bearings can be ground for precise preloading (light,medium,or heavy).Preloading removes internal clearance,eliminates backlash,and maximizes rotational stiffness.
Smooth Rotational Accuracy:High-precision manufacturing ensures minimal runout,making them ideal for sensitive positioning systems.
Low Friction & Low Torque
Small Rolling Elements:The smaller ball diameters inherent to thin section profiles reduce centrifugal force and rolling resistance.
High-Speed Efficiency:Lower friction translates to lower heat generation and reduced energy loss,permitting higher operating speeds compared to heavier standard bearings.
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,Spacecraft & Aviation Equipment
Satellite Core Rotary Mechanisms:Solar array unfolding hinges,communication antenna gimbals,star tracker rotary bases,optical filter wheel turntables,satellite reaction wheel supports,space camera positioning frames.
Fixed-Wing Aircraft Flight Control:Flap,aileron and elevator actuator hinges,landing gear steering joints,airborne optoelectronic pods.
Helicopter Rotor Systems:Main rotor swashplates,tail rotor pitch adjustment bearings,airborne surveillance gimbals.
Deep Space & Space Station Gear:Space manipulator arm rotary joints,orbital payload rotating platforms,probe detection turrets.
Medical Imaging and Advanced Equipment
CT Scanners:The massive rotating gantries of computed tomography scanners rely on large-diameter,extremely thin profile bearings to smoothly guide the X-ray tube and detector ring around the patient at high speeds.
Surgical Robotics & C-Arms:High rotational accuracy and zero-play characteristics allow medical positioning systems and surgical arms to operate with sub-millimeter precision.
Semiconductor Manufacturing & Vacuum Equipment
Wafer Handling End-Effectors:Cleanroom automation requires low-friction,lightweight components that reduce energy consumption and particulate generation.
Rotary Vacuum Feedthroughs:Their compact profile fits seamlessly into confined vacuum chamber assemblies where standard-sized bearings would create unacceptable spatial constraints.
Ultra-Lightweight Design Cuts Satellite Launch Costs:Every extra kilogram of satellite payload requires enormous launch fuel expenditure.Thin section angular contact ball bearings reduce component weight by over 40% compared to same-bore standard bearings.Mass reduction for dozens of on-orbit rotary mechanisms directly lowers the total satellite launch weight,saves rocket fuel costs,and allows satellites to carry more communication,observation and scientific detection payloads.
Slim Constant Cross-Section Fits Miniature Satellite Cabin Layout:Satellite internal cabins,solar panel root cavities and optical payload equipment have extremely compact reserved installation space,with dense signal cables,heat pipes and optical lenses distributed around.The fixed thin cross-section structure avoids the space waste of thick conventional bearings,simplifies the structural layout of satellite attitude control assemblies,and shortens the prototype development cycle of new satellite platforms including cube satellites.
Vacuum & Extreme Temperature Adaptability Ensures Long On-Orbit Life:Custom low-outgassing solid molybdenum disulfide lubricants and fully fluoropolymer sealed structures solve the problem of ordinary grease volatilization in cosmic vacuum.The bearing material system resists alternating extreme temperature changes from deep-space shadow (-170℃) to sun-facing high temperature (120℃),no lubricant failure or raceway thermal deformation occurs during multi-year on-orbit zero-maintenance operation,avoiding satellite mission interruption caused by bearing stuck rotation.
Preloaded Zero-Clearance Rigidity Guarantees Ultra-Precision Space Pointing:Cosmic micro-vibrations and satellite orbital jitter will cause optical payload pointing deviation.Preloaded thin angular contact bearings completely eliminate internal rotation clearance,restrain tiny swing of antenna and star tracker rotary shafts under long-term alternating micro loads,maintain arc-second level stable positioning accuracy of space optical equipment,ensure clear Earth remote sensing imaging and stable inter-satellite communication signal tracking.
Composite Load Resistance Simplifies Space Mechanism Structure:Single bearing simultaneously bears radial self-weight of space components,unidirectional axial thrust from drive motors and orbital overturning moment caused by satellite attitude adjustment.It replaces multiple matched groups of thick bearings,reduces the number of rotary structural parts on satellites,lowers the risk of mechanical failure in vacuum environments,and cuts space equipment manufacturing and ground testing costs.
Excellent Anti-Radiation & Anti-Fatigue Performance Adapts Deep Space Missions:Deep induction hardened HRC55–62 raceways plus stainless steel bearing variants resist long-term cosmic particle radiation erosion.The bearing structure withstands millions of low-speed oscillating rotation cycles of solar panels and antenna gimbals within the full 5–15 year satellite service life,drastically reducing on-orbit mechanical failure risks that cannot be repaired in space.
Newbeetrans is a professional manufacturer specializing in space-grade customized thin section bearings for all types of communication satellites,deep-space probes,space station robotic arms and on-orbit optical payload rotary mechanisms.
Space Customization Service:Supply vacuum low-outgassing preloaded anti-vibration thin bearings,440C stainless steel radiation-resistant variants,space solid dry lubrication and extreme temperature customized models; satellite prototype bearing samples can be finished within 10–15 working days per technical drawings.
Strict Aerospace & Space-Grade Inspection:All inner rings,outer rings and steel balls adopt ultra-precision superfinishing process; every space-use bearing undergoes vacuum outgassing test,alternating high-low temperature aging test and long-cycle micro-vibration fatigue inspection before delivery to meet space equipment reliability standards.
Stable Global Shipment:Mass stock of standard Type A thin series supports fast delivery; full cross-border air & sea logistics services for aerospace institutes and satellite manufacturers worldwide.
Authoritative Quality Certification:Products comply with ISO 9001 aerospace quality standards,and vacuum,temperature and radiation resistance SGS test reports can be provided upon customer request.
Global Space Technical Support:Professional bearing engineering team provides load calculation,contact angle selection and duplex preload matching design for all satellite and spacecraft rotary actuation mechanisms.
For technical specifications,pricing,or custom bearing solutions:
Email:paul@newbeetrans.com
Website:www.newbeetrans.com
WhatsApp
sales@newbeetrans.com
+8615090185276