IPDB › China Industry › Industrial Equipment & Components › Bearing
Durable and Long - Life Double - Row Angular Contact Bearings 305A-2RS1/C3 3305A-2z/C3 3305A2ztn9/Mt33 3304A1
Angular Contact Ball Bearing, Bearing, Angular Contact Ball Bearing
Zhejiang Judong Bearing Co., Ltd.
Preview:
Product Description Learn More About Our ProductsClick the name belowDeep groove ball bearingsCrossed Roller BearingsRod endDouble row deep groove ball bearingNeedle roller bearingsRadial spherical plain bearingsSelf-aligning ball bearingTapered roller bearingsStainless Steel BearingsAngular contact ball bearingsSpherical roller bearingsInsulating bearingThrust ball bearingsCylindrical roller bearingCeramic bearingPillow Block BearingCylindrical roller thrust bearingsHigh-temperature bearings Product Description Basic Structure & DesignComponents:Double-row steel balls: Two rows of balls arranged symmetrically at contact angles (typically 15°-40°).Inner & outer rings: Angular contact raceways optimized for load distribution.Integrated cage: Made of nylon or brass to synchronize double-row ball movement.Design Features:Bidirectional axial load capacity: Handles axial loads in both directions alongside radial loads.High rigidity: Symmetric layout minimizes deformation, ideal for precision positioning.Compact design: Dual-row integration saves installation space.Core AdvantagesSuperior load capacity:Axial load: 50%-80% higher than single-row bearings.Combined loads: Simultaneously handles radial and axial loads (e.g., gearboxes, spindles).High precision & rigidity:Reduces vibration and misalignment in precision equipment (e.g., CNC spindles, robotic joints).Simplified installation:Single-unit design eliminates pairing requirements (unlike single-row angular contact bearings).Extended service life:Optimized stress distribution minimizes localized wear. Key Selection ParametersContact angle:15°: Prioritizes high speed, low axial loads (e.g., small motors).25°-40°: Prioritizes heavy axial loads (e.g., industrial machinery).Dynamic/static load ratings:Calculate based on operational conditions (refer to ISO 281 standards).Speed limits:Slightly lower than single-row bearings (20%-30% reduction due to friction).Material & Sealing OptionsMaterials:Chrome steel (GCr15): General-purpose for standard industrial environments.Stainless steel (440C/316L): Corrosion-resistant for food/chemical industries.Ceramic hybrid: High-speed, anti-electrolysis (e.g., semiconductor equipment).Sealing types:Contact seals (2RS): Dust/waterproof, slightly reduces speed capability.Non-contact seals (ZZ): Low friction, ideal for high-speed applications.Installation Instructions Installation & Maintenance GuidelinesInstallation:Use thermal or hydraulic tools to avoid deformation.Ensure proper shaft/housing tolerances (recommended H7/k6 fit).Preload adjustment:Eliminate clearance via shims or threaded preload (follow manufacturer guidelines).Lubrication:High-speed: Synthetic oils (e.g., PAO).High-temperature/heavy loads: High-temperature grease (NLGI Grade 2). Product ParametersDesignationPrincipal dimensionsBasic load ratingsSpeed ratings dynamicstaticReference speedLimiting speed d[mm]D[mm]B[mm]C[kN]C0[kN][r/min][r/min] 3204 A 20 47 20.6 20.4 12.9 16 000 14 000 3204 A-2RS1 20 47 20.6 20.4 12.9 10 000 3204 A-2RS1TN9/MT33 20 47 20.6 20.4 12.9 10 000 3204 A-2Z 20 47 20.6 20.4 12.9 16 000 14 000 3204 A-2ZTN9/MT33 20 47 20.6 20.4 12.9 16 000 14 000 3204 A-ZTN9/MT33 20 47 20.6 20.4 12.9 16 000 14 000 3204 ATN9 20 47 20.6 20.4 12.9 16 000 14 000 3304 A 20 52 22.2 24.5 15.6 13 000 13 000 3304 A-2RS1 20 52 22.2 24.5 15.6 9 000 3304 A-2RS1TN9/MT33 20 52 22.2 24.5 15.6 9 000 3304 A-2Z 20 52 22.2 24.5 15.6 13 000 13 000 3304 A-2Z/C3 20 52 22.2 24.5 15.6 13 000 13 000 3304 A-2ZTN9/MT33 20 52 22.2 24.5 15.6 13 000 13 000 3304 ATN9 20 52 22.2 24.5 15.6 13 000 13 000 3205 A 25 52 20.6 22 15.3 12 000 12 000 3205 A-2RS1 25 52 20.6 22 15.3 8 500 3205 A-2RS1/C3LVT114F7 25 52 20.6 22 15.3 8 500 3205 A-2RS1TN9/MT33 25 52 20.6 22 15.3 8 500 3205 A-2Z 25 52 20.6 22 15.3 12 000 12 000 3205 A-2Z/C3 25 52 20.6 22 15.3 12 000 12 000 3205 A-2ZTN9/C3MT33 25 52 20.6 22 15.3 12 000 12 000 3205 A-2ZTN9/MT33 25 52 20.6 22 15.3 12 000 12 000 3205 A-RS1ZTN9/MT33 25 52 20.6 22 15.3 8 500 3205 ATN9 25 52 20.6 22 15.3 12 000 12 000 3305 A 25 62 25.4 32.5 22 11 000 11 000 3305 A-2RS1/C3 25 62 25.4 32.5 22 7 500 3305 A-2RS1TN9/MT33 25 62 25.4 32.5 22 7 500 3305 A-2Z 25 62 25.4 32.5 22 11 000 11 000 3305 A-2Z/C3 25 62 25.4 32.5 22 11 000 11 000 3305 A-2ZTN9/MT33 25 62 25.4 32.5 22 11 000 11 000CertificationsPackaging & Shipping Company ProfileFAQQ1: What about the MOQ? Can you accept a sample order?A: Our company MOQ is 1pc, and we can accept sample orders.Q2: Can you accept OEM/ODM?A: Yes, we can.Customizing according to your requirements or drawing.Q3: Do you supply door-to-door service?A: By air or express(DHL, FEDEX, EMS, etc.)Q4: Could you tell me the materials of your bearings?A: Chrome steel, carbon steel, stainless steel, ceramic, and plastic material.Q5: Are you a factory or trading company?A: We have our factory, JUDONG Bearing is specializes in manufacturing and exporting bearings.
Purchasing Agent
Note: Send your message to supplier or manufacturer.
Welcome to our Professional and comprehensive procurement services...
Message:
OK ! We suggest you detail your product requirements and company information here.
Enter between 20 to 4,000 characters.
Your inquiry content must be between 20 to 4000 characters.