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71911 CB/P4A Super Precision Single Row Angular Contact Ball Bearing 7911

Beining Intelligent Technology (Zhejiang) Co., Ltd
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    Buy cheap 71911 CB/P4A Super Precision Single Row Angular Contact Ball Bearing 7911 from wholesalers
     
    Buy cheap 71911 CB/P4A Super Precision Single Row Angular Contact Ball Bearing 7911 from wholesalers
    • Buy cheap 71911 CB/P4A Super Precision Single Row Angular Contact Ball Bearing 7911 from wholesalers

    71911 CB/P4A Super Precision Single Row Angular Contact Ball Bearing 7911

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    Brand Name : CNBTZC or OEM
    Model Number : 71911 CB/P4A
    Certification : IATF16949:2016
    Price : Please contact us,thanks
    Payment Terms : L/C,T/T
    Supply Ability : 200000pcs per month
    Delivery Time : 2-4 weeks
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    71911 CB/P4A Super Precision Single Row Angular Contact Ball Bearing 7911

    71911 CB/P4A 55*80*13 mm Super Precision High Capacity Single Row Angular Contact Ball Bearing

    Super-precision, high-speed B design, single row angular contact ball bearing


    The 71911 CB/P4A bearing,bore diameter is 55 mm, outside diameter is 80 mm,width is 13 mm,featuring precise dimensions, high static load capacity, P4A precision grade, delivers superior performance and reliability for applications requiring high rotational accuracy and stability.


    Part Number71911 CB/P4A
    Bearing TypeAngular Contact
    Measurement UnitMetric
    DimensionsInner Bore Diameter (d)55 mm
    Inner Bore Diameter Tolerance-0.007mm to 0
    Outer Bore Diameter (D)80 mm
    Outer Bore Diameter Tolerance-0.007mm to 0
    Width (B)13 mm
    Width Tolerance-0.2mm to 0
    SpecificationsContact Angle15° (25°,40° Available)
    MaterialChrome Steel
    Cage MaterialPhenolic
    Number of Rows1 Single Row
    Seal TypeOpen
    Temperature Range-30°C to 150°C
    LubricationOil,Grease
    Tolerance ClassP4A better than P4 (ABEC-7)
    Weight0.18 kg
    Matched ArrangementNo
    Universal Matching BearingNo
    PreloadNot applicable
    Load and SpeedDynamic Radial Load9950 N
    Static Radial Load8150 N
    Reference Speed For Grease (r/min)22,000 rpm
    Limiting Speed For Oil(r/min)34,000 rpm

    71911 CB/P4A Super Precision Single Row Angular Contact Ball Bearing 7911


    71911 CB/P4A Super Precision Single Row Angular Contact Ball Bearing 7911


    What's the Performance Features of 71911 CB/P4A Bearing?


    The 71911 CB/P4A angular contact ball bearing is engineered for high-precision and high-performance applications, featuring very tight tolerances suitable for precise machinery, the ability to handle both radial and axial loads simultaneously, high-speed operation with stability, low torque and friction for energy efficiency, enhanced rigidity for accuracy under heavy loads, durability with extended service life, effective performance across a wide temperature range.


    What's the Applications of the 71911 CB/P4A Bearing?


    The 71911 CB/P4A bearing is a high-precision angular contact ball bearing, ideal for high-speed and demanding applications. Here are its key uses:


    1. Machine Tools

    • High-Speed Spindles: Used in machining titanium and composites at 20,000–40,000 rpm. Optimizes cutting forces and reduces heat deformation.
    • Grinder Spindles: Ensures ultra-smooth surface finishes (Ra ≤0.05μm).

    2. Semiconductor Manufacturing

    • Wafer Stages: Provides precise motion control for lithography machines.
    • Probe Stations: Keeps stable electrical contact during high-speed wafer testing.

    3. Aerospace

    • Fuel Valves: Handles high speeds (up to 25,000 rpm) and resists fuel corrosion.
    • Satellite Reaction Wheels: Ensures smooth operation in vacuum environments for satellite positioning.

    4. Medical & Scientific Equipment

    • Proton Therapy: Accurately directs beams with minimal error (≤0.1mm).
    • Centrifuges: Operates at 100,000+ rpm with low vibration for sample protection.

    5. Robotics

    • Robotic Joints: Lightweight design improves flexibility and accuracy.
    • Delta Robots: Achieves high repeatability (±5μm) at fast speeds.
    CERTIFICATERoHS & REACH, IATF16949:2016
    FeatureHigh Speed and Stiffness,High Running Accuracy,High Load Carrying Capacity
    ServiceOEM&ODM Customized Services
    SamplesPlease Contact Us
    ServiceOnline Support,Professional Service
    SizeStandard,For custom sizes ,please contact us
    Factory ManufacturerYes

    If you need more detailed information , feel free to ask!

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