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    42 Products

    Shims

    Image of Product. Front orientation. Shims. Round, Sold Individually.
    With thickness tolerances as fine as a strand of hair, these shims precisely align, space, and level components on shafts, arbors, and machinery.
    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.
    Copper—Good conductors of heat, these shims are often used when installing heat sinks. As our softest metal shims, they prevent damage to equipment and components but may not retain their shape as well as other metal shims.
    Thk.
    Thk. Tolerance
    ID
    Tolerance
    OD Tolerance
    Min.
    Hardness
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
     
    1/4" ID × 3/8" OD
    0.09"-0.002" to 0.002"0" to 0.011"-0.002" to 0.002"Rockwell B70ASTM A2405000000000000000
     
    11/32" ID × 13/16" OD
    0.09"-0.005" to 0.005"0" to 0.011"-0.002" to 0.002"Rockwell B70ASTM A240100000000000000
     
    3/8" ID × 5/8" OD
    0.09"-0.005" to 0.005"0" to 0.011"-0.002" to 0.002"Rockwell B70ASTM A2401000000000000000
     
    1/2" ID × 3/4" OD
    0.09"-0.005" to 0.005"0" to 0.011"-0.002" to 0.002"Rockwell B70ASTM A2401000000000000000
     
    5/8" ID × 1" OD
    0.09"-0.005" to 0.005"0" to 0.011"-0.002" to 0.002"Rockwell B70ASTM A240500000000000000
     
    3/4" ID × 1 1/8" OD
    0.09"-0.005" to 0.005"0" to 0.011"-0.002" to 0.002"Rockwell B70ASTM A240500000000000000
     
    7/8" ID × 1 3/8" OD
    0.09"-0.005" to 0.005"0" to 0.011"-0.002" to 0.002"Rockwell B70ASTM A240500000000000000
     
    1" ID × 1 1/2" OD
    0.09"-0.005" to 0.005"0" to 0.011"-0.002" to 0.002"Rockwell B70ASTM A240500000000000000
     
    1 1/8" ID × 1 5/8" OD
    0.09"-0.005" to 0.005"0" to 0.011"-0.002" to 0.002"Rockwell B70ASTM A240500000000000000
     
    1 1/4" ID × 1 3/4" OD
    0.09"-0.005" to 0.005"0" to 0.011"-0.002" to 0.002"Rockwell B70ASTM A24010000000000000
     
    1 3/8" ID × 1 7/8" OD
    0.09"-0.005" to 0.005"0" to 0.011"-0.002" to 0.002"Rockwell B70ASTM A24010000000000000
     
    1 1/2" ID × 2 1/8" OD
    0.09"-0.005" to 0.005"0" to 0.011"-0.002" to 0.002"Rockwell B70ASTM A24010000000000000
     
    1 3/4" ID × 2 3/4" OD
    0.09"-0.005" to 0.005"0" to 0.011"-0.002" to 0.002"Rockwell B70ASTM A24010000000000000
     
    2" ID × 2 3/4" OD
    0.09"-0.005" to 0.005"0" to 0.011"-0.002" to 0.002"Rockwell B70ASTM A24010000000000000
     
    Highly Corrosion-Resistant 316 Stainless Steel
     
    1/4" ID × 3/8" OD
    0.09"-0.008" to 0.008"0" to 0.011"-0.002" to 0.002"Rockwell B70ASTM A240500000000000000
     
    11/32" ID × 13/16" OD
    0.09"-0.008" to 0.008"0" to 0.011"-0.002" to 0.002"Rockwell B70ASTM A2401000000000000000
     
    3/8" ID × 5/8" OD
    0.09"-0.008" to 0.008"0" to 0.011"-0.002" to 0.002"Rockwell B70ASTM A240500000000000000
     
    1/2" ID × 3/4" OD
    0.09"-0.008" to 0.008"0" to 0.011"-0.002" to 0.002"Rockwell B70ASTM A240500000000000000
     
    5/8" ID × 1" OD
    0.09"-0.008" to 0.008"0" to 0.011"-0.002" to 0.002"Rockwell B70ASTM A240500000000000000
     
    3/4" ID × 1 1/8" OD
    0.09"-0.008" to 0.008"0" to 0.011"-0.002" to 0.002"Rockwell B70ASTM A240500000000000000
     
    7/8" ID × 1 3/8" OD
    0.09"-0.008" to 0.008"0" to 0.011"-0.002" to 0.002"Rockwell B70ASTM A24050000000000000
     
    1" ID × 1 1/2" OD
    0.09"-0.008" to 0.008"0" to 0.011"-0.002" to 0.002"Rockwell B70ASTM A24010000000000000
     
    1 1/8" ID × 1 5/8" OD
    0.09"-0.008" to 0.008"0" to 0.011"-0.002" to 0.002"Rockwell B70ASTM A24050000000000000
     
    1 1/4" ID × 1 3/4" OD
    0.09"-0.008" to 0.008"0" to 0.011"-0.002" to 0.002"Rockwell B70ASTM A240500000000000000
     
    1 3/8" ID × 1 7/8" OD
    0.09"-0.008" to 0.008"0" to 0.011"-0.002" to 0.002"Rockwell B70ASTM A240500000000000000
     
    1 1/2" ID × 2 1/8" OD
    0.09"-0.008" to 0.008"0" to 0.011"-0.002" to 0.002"Rockwell B70ASTM A240500000000000000
     
    1 3/4" ID × 2 3/4" OD
    0.09"-0.008" to 0.008"0" to 0.011"-0.002" to 0.002"Rockwell B70ASTM A24010000000000000
     
    2" ID × 2 3/4" OD
    0.09"-0.008" to 0.008"0" to 0.011"-0.002" to 0.002"Rockwell B70ASTM A24010000000000000
     
    Brass
     
    3/8" ID × 5/8" OD
    0.09"-0.006" to 0.006"0" to 0.011"-0.002" to 0.002"Rockwell B60ASTM B361000000000000000
     
    1/2" ID × 3/4" OD
    0.09"-0.006" to 0.006"0" to 0.011"-0.002" to 0.002"Rockwell B60ASTM B361000000000000000
     
    5/8" ID × 1" OD
    0.09"-0.006" to 0.006"0" to 0.011"-0.002" to 0.002"Rockwell B60ASTM B3650000000000000
     
    3/4" ID × 1 1/8" OD
    0.09"-0.006" to 0.006"0" to 0.011"-0.002" to 0.002"Rockwell B60ASTM B36500000000000000
     
    1" ID × 1 1/2" OD
    0.09"-0.006" to 0.006"0" to 0.011"-0.002" to 0.002"Rockwell B60ASTM B3610000000000000
     
    Copper
     
    3/8" ID × 5/8" OD
    0.09"-0.008" to 0.008"0" to 0.011"-0.002" to 0.002"Not RatedASTM B1521000000000000000
     
    1/2" ID × 3/4" OD
    0.09"-0.008" to 0.008"0" to 0.011"-0.002" to 0.002"Not RatedASTM B1521000000000000000
     
    5/8" ID × 1" OD
    0.09"-0.008" to 0.008"0" to 0.011"-0.002" to 0.002"Not RatedASTM B1521000000000000000
     
    3/4" ID × 1 1/8" OD
    0.09"-0.008" to 0.008"0" to 0.011"-0.002" to 0.002"Not RatedASTM B1521000000000000000
     
    1" ID × 1 1/2" OD
    0.09"-0.008" to 0.008"0" to 0.011"-0.002" to 0.002"Not RatedASTM B152500000000000000
     

    Shims for Keyed Shafts

    With a notch or tab, these shims fit snugly on keyed shafts to align and space gears, sprockets, and bearings. On keyed arbors, they’re often used to accurately space saw blades and cutters.
    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.
    Notch
    Image of Product. Front orientation. Shims. For Keyed Shafts, Sold Individually, Round, Notch.
    Fit these shims around keyed shafts and arbors that have a key inserted. They’re often referred to as arbor spacers.
    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.
    Notch
    Thk.
    Thk. Tolerance
    ID
    ID
    Tolerance
    OD
    OD Tolerance
    Wd.
    Dp.
    Min.
    Hardness
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
     
    For 1" Diameter Shafts
    0.09"-0.005" to 0.005"1"0" to 0.011"1 1/2"-0.002" to 0.002"1/4"3/32"Rockwell B805000000000000000
     
    For 1 1/4" Diameter Shafts
    0.09"-0.005" to 0.005"1 1/4"0" to 0.011"1 3/4"-0.002" to 0.002"5/16"1/8"Rockwell B8010000000000000
     
    For 1 1/2" Diameter Shafts
    0.09"-0.005" to 0.005"1 1/2"0" to 0.011"2 1/8"-0.002" to 0.002"3/8"5/32"Rockwell B8010000000000000
     
    For 2" Diameter Shafts
    0.09"-0.005" to 0.005"2"0" to 0.011"2 3/4"-0.002" to 0.002"1/2"3/16"Rockwell B8010000000000000
     
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