McMaster-Carr logo
    Filter by
    System of Measurement
    OD
    Attribute Image
    Shape
    For Bearing ID
    For Bearing OD
    Bearing Trade Number
    Industrial Info Snippet
    Attribute Image
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Sold As
    Minimum Hardness
    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)
    3 Products

    Shims for Ball Bearing Outer Rings

    Image of Product. Front orientation. CrossSection, ZoomedIn view. Contains Annotated. Shims. For Ball Bearing Outer Rings, Sold Individually, Round.
    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
    R4
    		1/4"5/8"0.503"0" to 0.005"0.623"-0.005" to 0"Rockwell B70
    0.003"
    ,
    0.005"
    ,
    0.007"
    ,
    0.01"
    ,
    0.02"
    		25000000000000000
     
    Highly Corrosion-Resistant 316 Stainless Steel
    R4
    		1/4"5/8"0.503"0" to 0.005"0.623"-0.005" to 0"Rockwell B90
    0.005"
    ,
    0.007"
    ,
    0.01"
    ,
    0.02"
    		1000000000000000
     
    Brass
    R4
    		1/4"5/8"0.503"0" to 0.005"0.623"-0.005" to 0"Rockwell B70
    0.003"
    ,
    0.005"
    ,
    0.007"
    ,
    0.01"
    ,
    0.02"
    		100000000000000
     
    back to top