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.
Thin section four-point contact ball bearings are space-saving,single-row bearings featuring a special "gothic arch" raceway that creates four points of contact between the balls and the rings.They are engineered to handle radial,axial,and moment loads simultaneously within a highly compact,lightweight envelope.Inner diameter:20 mm-1000 mm Cross-section:4.7625×4.7625 mm-25.4×25.4 mm.Material:bearing rings and rolling elements steel GCr15 or stainless steel 9Cr18 Precision levels:P0,P6,P5 and P4 Two structural forms are available:open type for clean indoor environments and sealed J-series with rubber contact seals for dust,splash and particle isolation.For lubrication,standard industrial grease and low-outgassing vacuum lubricants are optional.Standard thin section bearing models can be delivered within 7–15 working days,and customized sizes,materials and sealing schemes are arranged according to customer technical drawings.
Astronomical telescopes and laser radar scanning turrets are high-precision optical and optoelectronic rotary core devices used for deep space observation,celestial tracking,atmospheric detection,target ranging and three-dimensional scanning.Astronomical telescopes include ground-based optical telescopes,radio telescope antenna pedestals and space-borne observation gimbals.Their rotary turrets need continuous slow tracking of faint celestial bodies for long hours,resisting gravity deflection,wind overturning moment and alternating temperature deformation,and requiring ultra-low rotation jitter to guarantee arc-second level pointing accuracy.Laser radar scanning turrets cover airborne,vehicle-mounted,ship-borne and ground LiDAR rotary platforms,used for autonomous navigation,terrain mapping,security scanning and space target monitoring.Such turrets feature slim miniaturized overall structures,high-frequency reciprocating rotation,and need to withstand eccentric moment generated by laser transmit-receive modules,axial gravity of optical components and variable radial vibration loads from vehicle movement.Both types of equipment impose extremely strict standards on rotary bearings: ultra-low friction torque,micro rotational runout,lightweight thin structure,strong anti-tilting rigidity,wide temperature adaptability,dust-proof sealing and long-term stable service life.Any slight bearing deformation or rotation fluctuation will directly lead to observation blur,ranging deviation and target tracking loss,completely invalidating optical detection data.
Multi-Directional Load Capacity:The unique geometry creates four points of contact between the ball and the raceway.This enables the bearing to accommodate bi-directional axial loads,radial loads,and overturning moments.
Space and Weight Savings:Unlike standard bearings where the cross-section scales up with the bore,thin-section bearings maintain a constant cross-section across different sizes.This yields significant mass reduction and a much smaller design envelope.
Replaces Duplex Bearings:By handling thrust loads from both directions and resisting moment loads,a single four-point contact bearing can often do the work of a paired back-to-back or face-to-face angular contact bearing setup.
High Rigidity:They are highly rigid and provide excellent running accuracy,often used with an internal preload (using balls slightly larger than the raceway space) to eliminate clearance and increase overall stiffness.
Aerospace,Defense,& Satellites Gimbal & Pointing Systems:Used in missile launchers and radar tracking platforms for precise angular control and low-torque movement.
Space Exploration:Deployed in satellites and spacecraft mechanisms where minimizing payload weight is a strict requirement.
Robotics & Automation Articulating Joints:Utilized in the elbows and joints of robotic arms to reduce friction while handling loads in compact spaces.
Rotary & Indexing Tables:Keeps machine tools and work-holding devices rigid and perfectly aligned with minimal deflection.
Medical & Imaging Equipment Diagnostic Scanners:Supports smooth,quiet,and stable rotation in large machinery such as MRI and CT scanners.
Surgical Robotics:Enables precise,repeatable motion required for delicate robotic surgical procedures.
Semiconductor Manufacturing Manufacturing Tools:Used in wafer steppers,chemical mechanical polishers (CMP),and photolithography equipment to achieve high geometric accuracy in vacuum or cleanroom environments.
Uniform Thin Cross-Section Optimizes Optical Equipment Miniaturization & Lightweight Design:Astronomical telescope gimbals and laser radar turrets are strictly limited by installation space and overall weight,especially airborne and space-borne optical equipment with stringent payload weight limits.Thin section four point contact bearings adopt equal cross-section design,inner diameter expands while wall thickness remains unchanged,greatly reducing turret shell radial and axial dimensions compared with conventional matched bearing groups.The lightweight bearing structure cuts turret rotary inertia,making telescope celestial tracking and LiDAR fast scanning more responsive without lag.
Single Bearing Integrates Three Compound Loads for Simplified Optical Rotary Structure:Telescope mirrors,radar laser modules produce radial self-weight,bidirectional axial force and large eccentric overturning moment during rotation.One thin section four point contact bearing can independently replace two sets of paired angular contact bearings to bear all composite loads synchronously.It eliminates complex duplex bearing positioning structures,reduces the number of mechanical parts in turret assemblies,lowers assembly difficulty and overall equipment manufacturing cost,while avoiding assembly clearance errors between multiple bearings that damage optical precision.
Ultra-Smooth Low-Torque Rotation Ensures Arc-Second Level Tracking:Precision P4/P5 ultra-precision super-finished raceways realize extremely steady friction torque with negligible fluctuation.When astronomical telescopes conduct long-duration faint star tracking and laser radars perform high-speed fine scanning,the bearing eliminates micro rotation jitter and tiny angular deviation,supporting ultra-high pointing accuracy.It prevents image smearing,ranging error and target loss caused by unstable rotation,ensuring reliable,high-quality optical detection data output.
Preloaded High Rigidity Resists Deformation from Wind & Vibration Disturbances:Internal preload structure eliminates bearing internal clearance and boosts anti-tilting rigidity.For ground telescopes exposed to outdoor wind loads and vehicle-borne LiDAR suffering bump vibration,the bearing effectively suppresses turret deflection and shake under moment impact,maintaining stable optical axis position during long-time continuous observation and scanning operation.
Diversified Materials & Sealing Adapt Complex Working Environments-Sealed:J-type bearing series blocks dust,moisture,dew and tiny particulate pollution,suitable for ground astronomical observatories and outdoor laser radar stations;
9Cr18 stainless steel customized bearings resist humidity,salt fog and extreme temperature difference,matching ship-borne radar and space telescope vacuum low-temperature working conditions;
Special low-outgassing vacuum grease optional for aerospace optical equipment to avoid optical window contamination.
Excellent Fatigue Performance Reduces Long-Term Maintenance Frequency:Precision ground raceways and high-hardness rolling elements feature outstanding anti-fatigue performance,adapting round-the-clock uninterrupted tracking of astronomical telescopes and high-frequency reciprocating scanning of laser radars.Low wear property extends bearing service cycle,cutting equipment shutdown maintenance times and lowering operation cost for observatories,radar stations and aerospace projects.
Newbeetrans is a professional manufacturer specializing in thin section bearings.We develop customized bearing solutions exclusively for astronomical telescope gimbals,laser radar scanning turrets and high-precision optical rotary equipment.
Optical Equipment Special Customization:Supply low-torque,zero-backlash preloaded thin bearings with vacuum low-outgassing lubricant,full stainless steel structure and multi-layer enhanced dustproof & waterproof seals; customized prototype samples can be finished within 10–15 days.
Precision Manufacturing Standard:All inner and outer ring raceways adopt ultra-precision superfinishing to reach P0,P6,P5 and P4 precision grades.Every finished bearing undergoes full inspection of dimensional tolerance,rotational torque and radial/axial runout before delivery to meet ultra-high accuracy demand of optical tracking devices.
Global Fast Shipment:Mass stock of standard KA / KB / KC / KD / KF / KG open series and JA / JB sealed thin bearings supports quick delivery; complete cross-border logistics covers optical instrument manufacturers,aerospace institutes and radar research institutions worldwide.
Authoritative Quality Certification:All products comply with ISO 9001 and national precision bearing standards,and official SGS inspection reports can be provided on request.
For technical specifications,pricing,or custom bearing solutions:
Email:paul@newbeetrans.com
Website:www.newbeetrans.com
WhatsApp
sales@newbeetrans.com
+8615090185276