McMaster-Carr logo
    Filter by
    System of Measurement
    Shaft Diameter
    Attribute Image
    Width
    Attribute Image
    Ball Bearing Profile
    Bearing Seal Type
    For Housing ID
    Attribute Image
    Bearing Type
    Inner Ring Type
    Shaft Mount Type
    ABEC Rating
    Maximum Rotation Speed
    For Load Direction
    Shaft Type
    Bearing Trade Number
    Industrial Info Snippet
    Attribute Image
    Bearing Construction
    Lubrication
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    DFARS Specialty Metals
    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)
    7 Products

    Ball Bearings

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

    Open

    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.
    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.
    For Housing
    ID
    Wd.
    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
    1/8"1/4"3/32"56080,000-40240StandardR144
    		57155K34600000
     

    Flanged Ball Bearings

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

    Open

    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.
    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.
    Flange
    Temp.
    Range, ° F
    For Shaft
    Dia.
    For Housing
    ID
    Wd.
    OD
    Thk.
    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
    1/8"1/4"3/32"0.296"0.02"56080,000-20250StandardR144
    		57155K20500000
     

    High-Precision Ball Bearings

    Image of Product. Front orientation. Ball Bearings. High-Precision Ball Bearings, Open.

    Open

    The most precise bearings we offer, with tolerances tighter than a speck of dust. Rated ABEC 7 out of 9, they meet strict tolerance standards established by the Annular Bearing Engineers Committee (ABEC). You'll find them in equipment that requires both high speed and pinpoint accuracy, such as gyroscopes.
    Open—With no rubber seal to block airflow, these bearings dissipate heat quickly, extending the life of the lubricant and reducing friction over time.
    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.
    Temp.
    Range, ° F
    For Shaft
    Dia.
    For Housing
    ID
    Wd.
    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
    1/8"1/4"3/32"74084,000-10240StandardR144
    		3826T7000000
     

    High-Precision Flanged Ball Bearings

    Image of Product. Front orientation. Ball Bearings. High-Precision Flanged Ball Bearings, Open.

    Open

    Our most precise flanged ball bearings, with tolerances tighter than a speck of dust. Rated ABEC 7 out of 9, they meet strict tolerance standards established by the Annular Bearing Engineers Committee (ABEC). Choose them for high-speed equipment that requires pinpoint accuracy, such as gyroscopes. Their 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.
    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.
    Flange
    Temp.
    Range, ° F
    For Shaft
    Dia.
    For Housing
    ID
    Wd.
    OD
    Thk.
    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
    1/8"1/4"3/32"0.296"0.02"74084,000-10240StandardR144
    		4259T6000000
     

    Shims for Ball Bearing Outer Rings

    Image of Product. Front orientation. CrossSection, ZoomedIn view. Contains Annotated. Shims. Round, For Ball Bearing Outer Rings, Sold Individually.
    Boost bearing efficiency and lifespan. Often used on motor shafts, these shims evenly distribute the load between multiple bearings by creating space between their outer rings. This prevents excessive pressure on any single bearing, maintaining proper alignment for smooth operation and reduced wear.
    You can stack multiple shims to achieve your exact thickness, but stacking more than four may cause them to shift. Remember, fewer shims are better, so a couple of thicker shims are more stable than a bunch of thin shims.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these shims resist rust. However, they’ll corrode or pit when exposed to salt water and chemicals.
    Highly Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel, these shims won't degrade when exposed to harsh weather, salt water, and most chemicals.
    Brass—With a warm, polished look, these shims are often chosen for their appearance. Similar to 18-8 stainless steel, brass is corrosion resistant enough to stand up to wet environments.
    For
    Bearing
    Trade No.
    ID
    OD
    ID
    ID
    Tolerance
    OD
    OD Tolerance
    Min.
    Hardness
    Choose a Thickness
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    R1-4, R144
    		5/64", 1/8"1/4"0.167"0" to 0.005"0.248"-0.005" to 0"Rockwell B70
    0.003"
    ,
    0.005"
    ,
    0.007"
    ,
    0.01"
    ,
    0.02"
    		2593574A200000000
     
    Highly Corrosion-Resistant 316 Stainless Steel
    R1-4, R144
    		5/64", 1/8"1/4"0.167"0" to 0.005"0.248"-0.005" to 0"Rockwell B90
    0.005"
    ,
    0.007"
    ,
    0.01"
    ,
    0.02"
    		1091182A13000000
     
    Brass
    R1-4, R144
    		5/64", 1/8"1/4"0.167"0" to 0.005"0.248"-0.005" to 0"Rockwell B70
    0.003"
    ,
    0.005"
    ,
    0.007"
    ,
    0.01"
    ,
    0.02"
    		1092409A3000000
     
    back to top