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    An AI Overview is not available for this searchCan't generate an AI overview right now. Try again later.
    AI Overview
    The 71902-2RZ is a high-precision, single-row angular contact ball bearing designed for high-speed, low-friction applications such as machine tool spindles. The "2RZ" suffix indicates it is sealed on both sides with non-contact rubber seals, providing protection while maintaining low friction and high speed capability. 
    Key Specifications & Load Data 
    • Dimensions: Typically 15 mm (Inner Diameter) x 28 mm or 32 mm (Outer Diameter) x 7 mm or 9 mm (Width) depending on the specific manufacturer design (e.g., 71902C or 71902AC).
    • Load Direction: Designed to carry radial loads and axial loads in one direction simultaneously.
    • Precision Class: Often P4 (ISO Class 4) or P2, indicating super-precision.
    • Contact Angle: Commonly available in 15° (C) or 25° (AC) angles, with higher angles allowing for higher axial load capacity.
    • Load Capacity: These bearings are optimized for high-speed, light-to-moderate loads rather than heavy-duty industrial loads. 
    Load Verification & Operation 
    • Combined Loads: Because they are angular contact, they must be paired with another bearing (DB - back-to-back, DF - face-to-face, or DT - tandem) to handle bidirectional axial loads.
    • Axial Load Generation: A radial load applied to the bearing will automatically generate an axial force, which must be compensated for by an opposite axial load from another bearing.
    • Speed Capability: The 2RZ seal design combined with small ball size (719 series) allows for very high limiting speeds, suitable for direct oil-air or grease lubrication. 
    Common Applications 
    • High-speed machine tool spindles
    • CNC machinery
    • High-precision grinding machines
    • Precision instrumentation 
    For specific, critical load calculations (C and C0 values), it is necessary to refer to the manufacturer’s data sheet (e.g., SKF, GMN, NSK) for the exact variant (e.g., 71902 ACD/HCP4ADBA). 
    • 71902 CE/HCP4AH - Super-precision angular contact ball bearings
      71902 CE/HCP4AH. Super-precision, high-speed E design, single row angular contact ball bearing suitable for direct oil-air lubrica...
      SKF
    • Hxb 71902c/Acskf 2rz P4 Angular Contact Ball Bearing for ...
      Contact Angle: 15° ; Model NO. 71902 ; Load Direction. Radial Bearing ; Material. Bearing Steel ; Precision Class. P4.
      Made-in-China.com
    • S71902 ACD/HCP4ADBA - Angular contact ball bearings - SKF
      They are designed to accommodate heavy loads at relatively high speeds under low to moderate operating temperatures. * Very high r...
      SKF
    Show all
    • 71902 CE/HCP4AH - Super-precision angular contact ball bearings
      71902 CE/HCP4AH. Super-precision, high-speed E design, single row angular contact ball bearing suitable for direct oil-air lubrica...
      SKF
    • Item # MLE71902CVUJ74S, Sealed Single Angular Contact Ball ...
      Bearing Finder Customizable search tool featuring exhaustive data sets, comprehensive part interchanges and interactive CAD drawin...
      NTN Bearing Finder
    • Hxb 71902c/Acskf 2rz P4 Angular Contact Ball Bearing for ...
      Contact Angle: 15° ; Model NO. 71902 ; Load Direction. Radial Bearing ; Material. Bearing Steel ; Precision Class. P4.
      Made-in-China.com
    • S71902 ACD/HCP4ADBA - Angular contact ball bearings - SKF
      They are designed to accommodate heavy loads at relatively high speeds under low to moderate operating temperatures. * Very high r...
      SKF
    • Precision machine tool supporting angular contact ball bearing triple ...
      This makes them ideal for retrofitting older machinery or replacing worn components without requiring major modifications to the h...
      AliExpress
    • GMN Bearing KH61902-2RZ ETA P4+ DUL Angular Contact ...
      GMN Bearing KH61902-2RZ ETA P4+ DUL Angular Contact Bearing KH Series - Fastest Speeds. Small Ball. Light Loads. Sealed with High ...
      MROsupply.com
    • Zgot Band Machine Tolls Spindle 7004ctynsulp4 71902 71903 ...
      Mining, metallurgy, automobile, machinery, motor, etc. ... 1. UKL Angular contact ball bearing have high limit rotational speed, t...
      Made-in-China.com
    • 2.2—Angular Contact Ball Bearings | NSK Global
      Angular contact ball bearings can support radial loads and axial loads in one direction. The line along the points where the balls...
      NSK Global
    • H71902/HQ1 high speed angular contact ball bearing 15*32*7mm
      It typically uses P4/P5 grade precision tolerances and together determine its load-bearing capacity, rotational accuracy, and appl...
      Tradebearings
    • CHINA Machine Tool Angular Contact Ball Bearings 7900 7901 ...
      - Regular Inspection: Periodically inspect the bearings for signs of wear, damage, or misalignment. Replace any damaged components...
      AliExpress
    • RZQUAL 1Group 71902A5-2RZ-P4-TBT-A ... - Amazon.com
      RZQUAL 1Group 71902A5-2RZ-P4-TBT-A 15X28X7 71902A5 Contact Bearings Spindle Bearings: Amazon.com: Industrial & Scientific.
      www.amazon.com
    • B71902 AC-2RZ P2 QBT A - Trade Bearings
      Radial static load rating. Grease r/min: 56000. Reference speed. B71902 AC-2RZ P2 QBT A. Detailed parameters and installation dime...
      en.tradebearings.com
    • Angular contact bearing 71900 71901 71902 71903 71904 71905 ...
      Single row angular contact ball bearings can only bear unidirectional axial loads. Under the action of. radial load, there will be...
      www.aliexpress.com
    • Angular contact ball bearings - SKF
      Angular contact ball bearings have inner and outer ring raceways that are displaced relative to each other in the direction of the...
      SKF
    • Single Row Angular Contact Ball Bearings Togo | Ubuy
      Typically, they ( FAG Bearings 7302-B-2RS-TVP ) can support radial loads and moderate axial loads in one direction. For specific a...
      Ubuy Togo
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    Web results

    RZQUAL 1Group 71902A5-2RZ-P4-TBT-A 15X28X7 ...


    Amazon.com
    https://www.amazon.com › RZQUAL-71902A5-2RZ-P...
    Amazon.com
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    RZQUAL 1Group 71902A5-2RZ-P4-TBT-A 15X28X7 71902A5 Contact Bearings Spindle Bearings: Amazon.com: Industrial & Scientific.

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    Angular contact bearing 71900 71901 71902 71903 71904 ...


    AliExpress
    https://www.aliexpress.com › item
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    https://www.aliexpress.com › item
    Single row angular contact ball bearings can only bear unidirectional axial loads. Under the action of. radial load, there will be an axial force in the ...
    People also ask
    How to identify an angular contact ball bearing?
    The first noticeable difference you'll see is that it has only one high shoulder on the outer ring. This design allows the angular contact bearing to have a high load capacity. This high shoulder also creates two intersecting lines, which form the contact angle of the bearing.

    Characteristics of an Angular Contact Ball Bearing


    GMN Bearing USA
    https://www.gmnbt.com › resources › guides › the-anato...
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    What is the difference between 2Z and 2RZ bearings?
    What's the difference between 2Z and 2RZ bearings? 2Z bearings are fitted with two metal dust shields at either end to keep out dirt and other contaminants. 2RZ bearings are like 2Z bearings, but also have two low-friction seals.

    SKF 61804-2RZ 1 Row Ball Bearing - 20 mm ID, 32 mm OD


    RS Components
    https://uk.rs-online.com › web › ball-bearings
    RS Components
    https://uk.rs-online.com › web › ball-bearings
    What is the direction of load in angular contact ball bearings?
    Angular contact ball bearings can support radial loads and axial loads in one direction. The line along the points where the balls contact the rings is inclined relative to the radial direction of the bearing. Due to this contact angle (α), an axial force is generated when a radial load is applied.

    2.2—Angular Contact Ball Bearings | NSK Global


    NSK
    https://www.nsk.com › tools-resources › abc-bearings › a...
    NSK
    https://www.nsk.com › tools-resources › abc-bearings › a...
    What does 2RS mean on a bearing?
    An error has occurred. Please try again later.

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    Explain how seals protect bearings
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    Compare 2RS to ZZ bearings

    Web results

    High- Speed High Precision Angular Contact Ball Bear...


    Luoyang Yujie Industry & Trade Co., Ltd.
    https://www.yogiemachinery.com › bearing › high-spee...
    Luoyang Yujie Industry & Trade Co., Ltd.
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    Alibaba.com
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    GMN Bearing HYKH61902-2RZ ETA P4+ DUL Angular Contact Bearing KH Series - Fastest Speeds. Small Ball. Light Loads. Sealed with High Speed Spingle Grease.Read more
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    Hxb 71902c/Acskf 2rz P4 Angular Contact Ball Bearing for ...


    Made-in-China.com
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    Contact Angle: 15° ; Model NO. 71902 ; Load Direction. Radial Bearing ; Material. Bearing Steel ; Precision Class. P4.Read more
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    SKF
    https://www.skf.com › angular-contact-ball-bearings
    SKF
    https://www.skf.com › angular-contact-ball-bearings
    Matched set of two super-precision, high-capacity, D design, single row angular contact ball bearings with seals. d: 15 mm. D: 28 mm. B: 14 mm. C: 6.5 kN.Read more

    1Group 71902A5-2RZ-P4-TBT-A 15X28X7 ...


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