McMaster-Carr logo
    Filter by
    System of Measurement
    Shaft Diameter
    Attribute Image
    OD
    Attribute Image
    Width
    Attribute Image
    Ball Bearing Profile
    Bearing Seal Type
    Bearing Type
    Industrial Info Compare
    For Housing ID
    Attribute Image
    For Load Direction
    Industrial Info Compare
    Bearing Trade Number
    Industrial Info Snippet
    Attribute Image
    Bearing Construction
    Maximum Rotation Speed
    Inner Ring Type
    Shaft Mount Type
    Shaft Type
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    10 Products

    Permanently Lubricated Ball Bearings

    Image of Product. Front orientation. Ball Bearings. Permanently Lubricated Ball Bearings.
    Install and forget these self-lubricating bearings. Their lubricant is a solid material that fills the space between the balls and releases oil over time, so you'll never need to add more.
    Open—With no rubber seal to block airflow, these bearings dissipate heat quickly, extending the life of the lubricant and reducing friction over time.
    Sealed—The best choice for dirty environments. A barrier seals out dust so it won't gunk up or wear down the balls. However, these bearings retain the most heat since air can't flow through.
    Corrosion-Resistant 440C Stainless Steel—Combine the strength of steel with the corrosion resistance of stainless steel. These bearings won't degrade from water or mild chemicals, such as the ammonia in cleaning solutions. However, they'll weaken when exposed to salt water and harsh chemicals, such as bleach.
    ABEC Rating—Bearings with an ABEC rating meet industry tolerance standards established by the Annular Bearing Engineers Committee (ABEC). They're rated on a scale from 1 to 9. The higher the rating, the tighter the tolerance. Bearings rated ABEC 1 or 3 are precise enough for most applications. If your application consistently runs at high speeds or requires high accuracy, consider bearings rated ABEC 5 or higher, since they generate less friction and heat.
    Temp.
    Range, ° F
    For Shaft
    Dia., mm
    For Housing
    ID, mm
    Wd.,
    mm
    ABEC
    Rating
    Dynamic Radial
    Load Cap., lb.
    Max. Rotation
    Speed, rpm
    Min.
    Max.
    Inner Ring
    Type
    Bearing Trade
    No.
    Each
    Open
     
    Corrosion-Resistant 440C Stainless Steel
    20274131012,000-10200Standard6704
    		00000000000000
     
    Sealed
     
    Corrosion-Resistant 440C Stainless Steel
    20274131012,000-10200Standard6704-2RS
    		0000000000000
     

    Ball Bearings

    Image of Product. Front orientation. Ball Bearings. Ball Bearings, Open.

    Open

    Image of Product. Front orientation. Ball Bearings. Ball Bearings, Shielded.

    Shielded

    Smoother than smooth—the balls inside these bearings roll nearly friction-free. You’ll often find them on rapidly rotating parts, from the whirring chuck on a power drill to the spinning shaft on an electric motor.
    Open—With no rubber seal to block airflow, these bearings dissipate heat quickly, extending the life of the lubricant and reducing friction over time.
    Shielded—The balls are covered just enough to keep out large particles while allowing air to pass through and dissipate heat.
    Steel—Strong and wear resistant. However, these bearings are best for dry environments since moisture will cause them to rust.
    Corrosion-Resistant 440C Stainless Steel—Combine the strength of steel with the corrosion resistance of stainless steel. These bearings won't degrade from water or mild chemicals, such as the ammonia in cleaning solutions. However, they'll weaken when exposed to salt water and harsh chemicals, such as bleach.
    ABEC Rating—Bearings with an ABEC rating meet industry tolerance standards established by the Annular Bearing Engineers Committee (ABEC). They're rated on a scale from 1 to 9. The higher the rating, the tighter the tolerance. Bearings rated ABEC 1 or 3 are precise enough for most applications. If your application consistently runs at high speeds or requires high accuracy, consider bearings rated ABEC 5 or higher, since they generate less friction and heat.
    Temp.
    Range, ° F
    For Shaft
    Dia., mm
    For Housing
    ID, mm
    Wd.,
    mm
    ABEC
    Rating
    Dynamic Radial
    Load Cap., lb.
    Max. Rotation
    Speed, rpm
    Min.
    Max.
    Inner Ring
    Type
    Bearing
    Trade No.
    Each
    Open
     
    Steel
    20274131010,000-50130Standard6704
    		00000000000000
     
    Corrosion-Resistant 440C Stainless Steel
    20274131010,000-50130Standard6704
    		0000000000000
     
    Shielded
     
    Steel
    2027413108,500-40150Standard6704-2Z0000000000000
     

    Flanged Ball Bearings

    Image of Product. Front orientation. Ball Bearings. Flanged Ball Bearings, Open.

    Open

    Image of Product. Front orientation. Ball Bearings. Flanged Ball Bearings, Shielded.

    Shielded

    Install these bearings inside a housing and they won't budge. The flange presses against the housing wall, so vibration and other sudden forces parallel to the shaft (thrust loads) won't knock them off-kilter.
    Open—With no rubber seal to block airflow, these bearings dissipate heat quickly, extending the life of the lubricant and reducing friction over time.
    Shielded—The balls are covered just enough to keep out large particles while allowing air to pass through and dissipate heat.
    Steel—Strong and wear resistant. However, these bearings are best for dry environments since moisture will cause them to rust.
    ABEC Rating—Bearings with an ABEC rating meet industry tolerance standards established by the Annular Bearing Engineers Committee (ABEC). They're rated on a scale from 1 to 9. The higher the rating, the tighter the tolerance. Bearings rated ABEC 1 or 3 are precise enough for most applications. If your application consistently runs at high speeds or requires high accuracy, consider bearings rated ABEC 5 or higher, since they generate less friction and heat.
    Flange,
    mm
    Temp.
    Range, ° F
    For Shaft
    Dia., mm
    For Housing
    ID, mm
    Wd.,
    mm
    OD
    Thk.
    ABEC
    Rating
    Dynamic Radial
    Load Cap., lb.
    Max. Rotation
    Speed, rpm
    Min.
    Max.
    Inner Ring
    Type
    Bearing
    Trade No.
    Each
    Open
     
    Steel
    2027428.50.8122510,000-50280Standard6704
    		00000000000000
     
    Shielded
     
    Steel
    2027428.50.812258,500-50300Standard6704-2Z0000000000000
     

    Ball Bearings for Food and Beverage

    Image of Product. Front orientation. Ball Bearings. Ball Bearings for Food and Beverage, Sealed.

    Sealed

    Food production rolls along smoothly on these bearings. Greased with FDA-compliant lubricant, they’re safe to install on food-processing equipment, such as conveyor belts, so long as they don’t directly touch the food. The lubricant is a solid material that fills the space between the balls and releases oil over time, so you'll never need to add more.
    Sealed—The best choice for dirty environments. A barrier seals out dust so it won't gunk up or wear down the balls. However, these bearings retain the most heat since air can't flow through.
    Corrosion-Resistant 440C Stainless Steel—Combine the strength of steel with the corrosion resistance of stainless steel. These bearings won't degrade from water or mild chemicals, such as the ammonia in cleaning solutions. However, they'll weaken when exposed to salt water and harsh chemicals, such as bleach.
    ABEC Rating—Bearings with an ABEC rating meet industry tolerance standards established by the Annular Bearing Engineers Committee (ABEC). They're rated on a scale from 1 to 9. The higher the rating, the tighter the tolerance. Bearings rated ABEC 1 or 3 are precise enough for most applications. If your application consistently runs at high speeds or requires high accuracy, consider bearings rated ABEC 5 or higher, since they generate less friction and heat.
    Temp.
    Range, ° F
    For Shaft
    Dia., mm
    For Housing
    ID, mm
    Wd.,
    mm
    ABEC
    Rating
    Dynamic Radial
    Load Cap., lb.
    Max. Rotation
    Speed, rpm
    Min.
    Max.
    Inner Ring
    Type
    Food Industry Std.
    Bearing Trade
    No.
    Each
    Sealed
     
    Corrosion-Resistant 440C Stainless Steel
    2027412258,500-40200StandardFDA Compliant 21 CFR 178.35706704-2RS
    		00000000000000
     

    Dry-Running Sleeve Bearings

    Image of Product. Front orientation. Sleeve Bearings. Dry-Running Sleeve Bearings.
    Made of naturally slippery plastic so you’ll never have to add lubricant. They’re ideal for clean environments where you need to prevent oil drips or graphite flakes. Compared to metal bearings, they are lighter and will never rust.
    With no moving parts, sleeve bearings are the simplest way to support the load of a rotating shaft while reducing friction. Also known as plain bearings.
    High-Load Moisture-Resistant Rulon LR—Won’t swell in wet or humid places, similar to acetal, but can support higher loads. These bearings also operate smoothly from cryogenic to oven-like temperatures.
    Each
    For Shaft
    Dia., mm
    For Housing
    ID, mm
    Lg.,
    mm
    Dynamic Radial Load
    Cap. @ Speed
    Color
    Temp. Range,
    ° F
    1-24
    25-99
    100-Up
    High-Load Moisture-Resistant Rulon LR
    222722550 lb. @ 60 rpmMaroon-400 to 5500000000000000000000000000
     

    Dry-Running Thrust Bearings

    Image of Product. Front orientation. Thrust Bearings. Dry-Running Thrust Bearings.
    Made of naturally slippery plastic so there's no lubricant to maintain or make a mess. These bearings are ideal for spic-and-span spaces since oil won't drip off, wash out, or collect dust over time. They'll also never rust.
    Moisture-Resistant Plastic Blend—Similar to acetal, these bearings won't warp or swell from water or humidity.
    For Shaft
    Dia., mm
    OD,
    mm
    Thk.,
    mm
    Dynamic Thrust Load
    Cap. @ Speed
    Color
    Temp. Range,
    ° F
    Each
    Moisture-Resistant Plastic Blend
    11270.575 lb. @ 120 rpmGray-40 to 260000000000000
     
    back to top