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.
Double row slewing bearings are heavy-duty rotary ring parts with two independent rows of rolling elements (usually steel balls) placed between an inner and outer ring.They safely support heavy axial forces,radial forces,and tilting moment loads all at the same time.
Core Basic Specifications
Materials:Ring forgings adopt 42CrMo & 50Mn alloy steel with full quenching treatment;rolling balls are high-strength GCr15 bearing steel with high surface hardness.Cages include standard carbon steel,high-temperature resistant brass,and lightweight self-lubricating engineering plastic.Size Range:Inner diameter 100-4000mm,outer diameter 150-450mm,overall structural height 50-400mm.Accuracy Grades:P0,P6,P5 industrial precision levels,matching heavy engineering equipment demands.Gear Types:Three standard series available:gearless (020),external gear (021/022),internal gear (023/024) to fit different hydraulic drive layouts.Sealing Solutions:Standard non-contact labyrinth seals for general environments;triple-lip polyurethane contact seals for muddy,dusty,splash-heavy harsh environments.Fluoropolymer seals are optional for special corrosive conditions.Lubrication Modes:Long-service lithium-based grease for routine operation;circulating oil lubrication for continuous high-frequency rotation heavy-load scenarios.Standard operating temperature range:-30℃-120℃,customized low-temperature grease down to -40℃.Delivery Cycle:Standard in-stock models ship within 7-15 working days;heavy-load customized versions require separate lead-time negotiation.
Packaging & Automated Rotary Equipment covers all rotary-type automated machinery used in food,pharmaceutical,daily chemical,logistics and industrial packaging production lines,including multi-station rotary filling machines,rotary capping & labeling turntables,pallet wrapping rotary bases,automated sorting rotary platforms,rotary blister packaging equipment,and assembly line indexing rotary jigs.All packaging rotary machines are equipped with large slewing turntables to realize intermittent or continuous 360° rotation for product transfer,filling,sealing,labeling and palletizing.During mass production,rotary bearings bear frequent alternating eccentric loads from bottles,cartons and heavy pallet goods,plus continuous high-speed start-stop impact loads.Packaging workshop environments feature powder pollution from powder raw materials,liquid splashes of beverages and chemicals,and constant long-hour uninterrupted operation.Ordinary single-row slewing bearings are prone to rotation jitter,positioning offset and premature wear under high-cycle repetitive rotation,which will cause packaging misalignment,defective products and frequent production line shutdowns.Therefore,high-efficiency packaging automated lines must adopt double row slewing bearings with high positioning repeatability,anti-splash sealing and long fatigue service life.
Two-Row Configuration:Features upper and lower raceways that distribute localized stress across dual lines of steel balls or rollers.
Same vs.Different Diameters:Available in same-diameter ball setups for simpler layouts or different-diameter ball designs (larger lower balls) to optimize high tipping-moment resistance.
Integrated Gearing:Frequently built with internal or external gear teeth cut directly into one of the rings to drive 360-degree rotation.
Induction-Hardened Raceways:Raceways are deep-quenched (typically HRC 55–62) to maximize surface wear resistance under severe load.
Construction and Lifting Machinery
Tower and Mobile Cranes:Support heavy lifting loads and allow smooth 360-degree rotation.Excavators and Loaders:Manage heavy digging forces and shifting weights during earth-moving work.Concrete Pumps:Handle steady movement and mechanical stress on job sites.
Renewable Energy Systems
Wind Turbines:Used in yaw and pitch systems to turn the massive blades and nacelle toward the wind.Solar Trackers:Help heavy solar panels follow the sun smoothly across the sky.
Marine and Port Equipment
Ship Cranes and Davits:Resist harsh sea conditions and off-center lifting loads.Port Handling Gear:Support loading and unloading heavy cargo containers safely.
Industrial and Specialty Uses
Rotating Tables:Used in factory assembly lines and heavy manufacturing platforms.Medical Systems:Provide stable,precise rotation in large scanning units like CT scanners.
Packaging & Automated Rotary Equipment
Multi-station rotary filling turntables,rotary capping/labeling indexing platforms,heavy pallet wrapping rotary supports,automatic sorting rotary carousels,blister packaging rotary jigs and industrial assembly line rotary positioning tables all adopt double row slewing bearings as core rotary load-bearing components,supporting stable high-speed intermittent rotation under long-hour continuous packaging workshop operation.
High Rigidity Eliminates Rotary Jitter to Reduce Packaging Defects:Rotary packaging equipment carries uneven weight of bottles,boxes and pallet loads during indexing rotation,generating continuous eccentric tilting moments.Dual-row ball structure evenly disperses stress,minimizes turntable micro-deformation and rotation shake.Stable rotary positioning ensures consistent filling volume,accurate labeling and neat pallet winding,drastically lowering defective product rate and improving packaging yield.
Splash & Dust Resistant Sealing Adapts Packaging Workshop Conditions:Triple-lip polyurethane sealing blocks beverage liquid splashes,powder dust and chemical cleaning agents from invading internal raceways.Special food-grade lubrication options are available for food and pharmaceutical packaging lines,avoiding grease contamination of packaged goods and complying with food safety production standards.
Outstanding High-Cycle Fatigue Life Reduces Line Downtime:42CrMo fully quenched raceways greatly improve anti-fatigue performance,adapting millions of daily high-speed start-stop rotation cycles of packaging lines.Longer bearing service life cuts frequent replacement maintenance,eliminates production line halts caused by bearing failure and boosts factory daily output.
Multiple Gear Forms Match Automated Servo Drives:Gearless,external gear and internal three series can perfectly match small servo reducers and variable-frequency drive systems of rotary packaging machines.Equipment manufacturers do not need to redesign transmission structures,shortening prototype R&D and assembly debugging cycles for packaging machinery.
Wide-Temp Lubrication Fits All Production Workshops:Custom normal-temperature food-safe grease for indoor packaging plants,high-temperature resistant lubricant for hot filling production lines.No grease volatilization or solidification occurs in temperature-variable workshops,maintaining smooth low-torque rotation 24/7.
Compact Integrated Design Simplifies Packaging Machine Layout:A single double row slewing bearing replaces multiple single bearing combinations,thinning the overall height of rotary turntables.It saves internal installation space of packaging equipment,facilitates layout of filling nozzles,labeling heads and sensor modules,and miniaturizes the whole packaging machine structure.
Newbeetrans is a professional manufacturer specialized in customized double row slewing bearings for all kinds of packaging and automated rotary equipment.We supply full-size standard stock and food-grade dust-proof anti-splash customized slewing solutions for packaging machinery manufacturers worldwide.
Full Precision Production Inspection:All inner and outer rings adopt integral forging + deep raceway quenching process; every packaging-dedicated bearing undergoes rotational torque,dust-proof and liquid splash aging tests before delivery.
Diversified Packaging Customization Service:Support 42CrMo alloy steel,food-grade low-volatility grease,triple-lip anti-splash sealing,internal/external/gear three gear forms and small-medium non-standard tailor-made rotary bearings for filling,labeling and pallet wrapping turntables.
Stable Fast Delivery:Standard series bearings are in stock for shipment within 7–15 days; packaging customized bearing samples can be finished within 10–15 days based on drawing technical requirements.
Authoritative Quality Certification:All products comply with ISO 9001 precision bearing standards,and food safety & dust resistance SGS test reports can be provided upon customer request.
Global One-stop Technical Support:Complete cross-border global logistics service; professional bearing engineers provide load calculation,sealing and lubrication selection guidance for all packaging rotary turntable mechanisms.
For technical specifications,pricing,or custom bearing solutions:
Email:paul@newbeetrans.com
Website:www.newbeetrans.com
WhatsApp
sales@newbeetrans.com
+8615090185276