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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 MR74-2RS is a high-precision, miniature 4x7x2.5mm ball bearing designed with dual rubber seals for dirt resistance, low noise, and high-speed performance in constrained spaces. Featuring chrome steel construction and often ABEC-7 tolerance, it is ideal for RC models, micro-motors, drones, and precise industrial equipment. 
    Key Features & Specifications 
    • Dimensions: 4mm Bore (Inside Diameter), 7mm Outside Diameter, 2.5mm Width.
    • Sealing: 2RS (Two-side rubber seals) provide excellent oil/liquid resistance.
    • Precision Class: Commonly available in ABEC-5 or ABEC-7 for high rotational accuracy and low friction.
    • Material: Chrome Steel (GCr15) or stainless steel variants.
    • Temperature Range: -20°C to 120°C. 
    Common Applications 
    • RC Vehicles: Drones, racing trucks, helicopters.
    • Precision Machinery: Fan motors, printer spindles, and automation robotics.
    • Industrial: High-speed instruments and medical equipment. 
    Alternatives and Variants 
    • MR74zz: Metal shielded variant, often better for high-speed but less dirt-resistant.
    • Open MR74: Open design for specialized lubrication.
    • SMR74: Stainless steel version for corrosion resistance. 
    These bearings are designed to provide high-level sealing in harsh environments while maintaining a compact, smooth-running footprint. 
    • 4x7x2.5mm Bearings MR74-2RS - Rubber Seals - eBay
      Item description from the seller 4x7x2. 5mm Rubber Sealed Bearings,SOLD INDIVIDUALLY. Universal Part Number MR74-2RS. ... 4x7x2. 5...
      eBay
    • 5Pcs MR74-2RS Deep Groove Bearing, 4x7x2.5mm Double Sealed ...
      5Pcs MR74-2RS Deep Groove Bearing, 4x7x2. 5mm Double Sealed Chrome Steel ABEC-7 * Reliable Materials: Single-row bearing for suppo...
      eBay
    • MR74zz MR74Z Bearing 4 * 7 * 2.5 mm 10 PCS ABEC-5 Miniature ...
      Several different cage designs are available with different characteristics and the choice depends upon the individual application...
      Amazon.com
    • Sealed Metal Shielded Ball Bearing MR74 SMR74K 4 x 7 x 2 mm ...
      Type：SMR74K. Select Bearing grades：ordinary class，Motor class or Specialty class. Bearing materials mainly include : iron sheets， ...
      eBay
    • MR74-OPEN PRECISION BEARING 4mm X 7mm X 2mm 4X7X2 A517
      MR74-OPEN PRECISION BEARING 4mm X 7mm X 2mm 4X7X2 A517.
      eBay
    • MR74-2RS Sealed Miniature Ball Bearing For Harsh Environments ...
      The MR74-2RS is a precision-engineered miniature bearing designed for applications where high-level sealing is required within an ...
      www.welinkbearing.com
    • Go to product viewer dialog for this item.
      (2) Mr74-2rs Two Side Rubber Seal Mr 74 High Quality Ball Bearing M74
      MR74-2RS You are buying new MR74 two side rubber seals bearing. Quality bearing Dimension D (Outside) 7 mm d (Inside) Bore 4 mm B ...
      Google
    • 10pc MR74 2RS 4x7x2.5 mm Blue Seals RC Car Trucks Racing Ball ...
      Seal Type : Blue Rubber Seals Lubrication : Grease Feature : High precision, High speed, Low noisetion, Dry lubrication. Applicati...
      www.amazon.com
    • 4x7x2.5mm Bearings MR74-2RS - Rubber Seals - eBay
      Item description from the seller 4x7x2. 5mm Rubber Sealed Bearings,SOLD INDIVIDUALLY. Universal Part Number MR74-2RS. ... 4x7x2. 5...
      eBay
    • 5Pcs MR74-2RS Deep Groove Bearing, 4x7x2.5mm Double Sealed ...
      5Pcs MR74-2RS Deep Groove Bearing, 4x7x2. 5mm Double Sealed Chrome Steel ABEC-7 * Reliable Materials: Single-row bearing for suppo...
      eBay
    • MR74zz MR74Z Bearing 4 * 7 * 2.5 mm 10 PCS ABEC-5 Miniature ...
      Several different cage designs are available with different characteristics and the choice depends upon the individual application...
      Amazon.com
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    Web results

    10pc MR74 2RS 4x7x2.5 mm Blue Seals RC Car Trucks Racing ...


    Amazon.com
    https://www.amazon.com › 4x7x2-5-Seals-Trucks-Raci...
    Amazon.com
    https://www.amazon.com › 4x7x2-5-Seals-Trucks-Raci...
    Seal Type : Blue Rubber Seals Lubrication : Grease Feature : High precision, High speed, Low noisetion, Dry lubrication. Application : RC Car Toys, Tools ...

    MR74-2RS Sealed Miniature Ball Bearing For Harsh Environments ...


    welinkbearing.com
    https://www.welinkbearing.com › MR Series
    welinkbearing.com
    https://www.welinkbearing.com › MR Series
    The MR74-2RS is a precision-engineered miniature bearing designed for applications where high-level sealing is required within an ultra-slim footprint.

    High Precision Miniature 4*7*2.5 MR74-2RS Sealed Micro Mini ...


    Alibaba.com
    https://www.alibaba.com › product-detail › High-Precisi...
    Alibaba.com
    https://www.alibaba.com › product-detail › High-Precisi...
    High Precision Performance: This miniature ball bearing features an ABEC-1, ABEC-3, and ABEC-5 precision rating, ensuring high-speed and long-lasting ...

    Small MR74 Ball Bearings 4mm X 7mm X 2mm


    Misumi USA
    https://us.misumi-ec.com › ball-bearings › miniature › m...
    Misumi USA
    https://us.misumi-ec.com › ball-bearings › miniature › m...
    The MR74 4 mm Ball Bearing Inner Dimension 4mm X Outer Dimension 7mm X Width 2mm is an open style ball bearing designed for high rotational speeds and high ...Read more

    (10) MR74-2RS two side rubber seal MR 74 high ...


    eBay
    https://www.ebay.com › itm
    eBay
    https://www.ebay.com › itm
    You are buying new MR74 two side rubber seals bearing. 2RS (Two side rubber seals). Quality bearing. Wide Temperature Range: - 20 C to 120 C. d (Inside) ...
    $13.70 · In stock · 4.0(1) · Free delivery · 30-day returns
    Missing: Precision ‎| Show results with: Precision

    10pc MR74 2RS 4x7x2.5 mm Blue Seals RC Car Trucks Racing ...


    Amazon.com
    https://www.amazon.com › 4x7x2-5-Seals-Trucks-Raci...
    Amazon.com
    https://www.amazon.com › 4x7x2-5-Seals-Trucks-Raci...
    Precision : ABEC-3. Seal Type : Blue Rubber Seals Lubrication : Grease Feature : High precision, High speed, Low noisetion, Dry lubrication. Application : RC ...

    MR74 OPEN Bearing 4*7*2 mm ( 10 PCS ) Miniature High ...


    AliExpress
    https://www.aliexpress.com › item
    AliExpress
    https://www.aliexpress.com › item
    5PCS NBZH miniature Bearing MR74 MR74Z OPEN / Single Sealed 4*7*2 MM. 2,75US $. 60 sold 5. 5PCS NBZH miniature Bearing MR74 MR74Z OPEN / Single Sealed 4*7*2 MM ...
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      Mr74-2rs Two Side Rubber Seal Mr 74 High Quality Ball Bearing M74
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      Free delivery
      Mr74-2rs Two Side Rubber Seal Mr 74 High Quality Ball Bearing M74
      $6.99
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    • MR74-2RS Two Side Rubber Seal MR 74 Ball Bearing M74 7X4X2.5 mm.
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    Web results

    4x7x2.5 Rubber sealed bearing


    JimsBearings
    https://jimsbearings.com › products
    JimsBearings
    https://jimsbearings.com › products
    mr74-2rs mr 74 2rs 4x7. Abec 3 precision; Pre Greased for long life; Chrome steel races and retainers; Dual Rubber seals; High quality Aftermarket replacement.Read more
    $0.95 · 6-day delivery · 30-day returns
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    • (2) Mr74-2rs Two Side Rubber Seal Mr 74 High Quality Ball Bearing M74.
      (2) Mr74-2rs Two Side Rubber Seal Mr 74 High Quality Ball Bearing M74
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      Plaig 4x7x2.5mm Bearing Rubber Seals
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    • MR74-2RS Deep Groove Ball Miniature Bearing.
      MR74-2RS Deep Groove Ball Miniature Bearing
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      Next-day delivery $3
      MR74-2RS Deep Groove Ball Miniature Bearing
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      Bolton Engineering
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    • MR74-2RS Zen.
      MR74-2RS Zen
      $1.48
      tuli-shop.com
      MR74-2RS Zen
      $1.48
      tuli-shop.com
    • 10% OFF
      10 PACK MR74 2RS 4x7x2.5 mm Metric Rubber Sealed bearings. 10% OFF.
      10 PACK MR74 2RS 4x7x2.5 mm Metric Rubber Sealed bearings
      $9.00$10
      eBay - fullforce-rc
      10% OFF
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    • EuroRC Double Rubber Shield Bearing 4x7x2.5mm MR74-2RS (10).
      EuroRC Double Rubber Shield Bearing 4x7x2.5mm MR74-2RS (10)
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      EuroRC USA
      EuroRC Double Rubber Shield Bearing 4x7x2.5mm MR74-2RS (10)
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      EuroRC USA
    • Rubber Sealed Shielded Ball Bearing Mr74-2rs 4 X 7 X 2.5mm Select.
      Rubber Sealed Shielded Ball Bearing Mr74-2rs 4 X 7 X 2.5mm Select
      $23.04
      eBay - miss_my_car
      Rubber Sealed Shielded Ball Bearing Mr74-2rs 4 X 7 X 2.5mm Select
      $23.04
      eBay - miss_my_car

    Web results

    Miniature Bearings | Radial Ball Bearing | Sealed Precision ...


    ACER Racing
    https://www.acerracing.com › 4x7x2-5mm-mr74
    ACER Racing
    https://www.acerracing.com › 4x7x2-5mm-mr74
    Our new Polyamide Seal is best for dirt resistance and is designed to generate the lowest rolling friction of any other seal we carry for a super smooth ride.Read more
    $15.99 · Free delivery over $40 · 30-day returns

    High Precision MR74 Seal Manufacturers - Welink


    welinkbearing.com
    https://www.welinkbearing.com › tag › high-precision-...
    welinkbearing.com
    https://www.welinkbearing.com › tag › high-precision-...
    The MR74-2RS is a precision-engineered miniature bearing designed for applications where high-level sealing is required within an ultra-slim footprint.
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