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    225 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.
    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
    Thk.
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    R0
    		3/64"5/32"0.088"0" to 0.005"0.153"-0.005" to 0"Rockwell B700.003"25000000000000000
    R1
    		0.055"3/16"0.123"0" to 0.005"0.178"-0.005" to 0"Rockwell B700.003"2500000000000000
    R1-4, R144
    		5/64", 1/8"1/4"0.167"0" to 0.005"0.248"-0.005" to 0"Rockwell B700.003"2500000000000000
    R1-5, R2-5
    		3/32", 1/8"5/16"0.206"0" to 0.005"0.31"-0.005" to 0"Rockwell B700.003"2500000000000000
    R2, R166
    		1/8", 3/16"3/8"0.253"0" to 0.005"0.373"-0.005" to 0"Rockwell B700.003"2500000000000000
    R3, R188
    		3/16", 1/4"1/2"0.378"0" to 0.005"0.498"-0.005" to 0"Rockwell B700.003"2500000000000000
    R4
    		1/4"5/8"0.503"0" to 0.005"0.623"-0.005" to 0"Rockwell B700.003"2500000000000000
    R6
    		3/8"7/8"0.687"0" to 0.005"0.873"-0.005" to 0"Rockwell B700.003"2500000000000000
     
    Brass
    R1
    		0.055"3/16"0.123"0" to 0.005"0.178"-0.005" to 0"Rockwell B700.003"100000000000000
    R1-4, R144
    		5/64", 1/8"1/4"0.167"0" to 0.005"0.248"-0.005" to 0"Rockwell B700.003"100000000000000
    R1-5, R2-5
    		3/32", 1/8"5/16"0.206"0" to 0.005"0.31"-0.005" to 0"Rockwell B700.003"100000000000000
    R2, R166
    		1/8", 3/16"3/8"0.253"0" to 0.005"0.373"-0.005" to 0"Rockwell B700.003"100000000000000
    R3, R188
    		3/16", 1/4"1/2"0.378"0" to 0.005"0.498"-0.005" to 0"Rockwell B700.003"100000000000000
    R4
    		1/4"5/8"0.503"0" to 0.005"0.623"-0.005" to 0"Rockwell B700.003"100000000000000
     

    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.
    Carbon Steel—Best for dry environments since moisture will cause these shims to rust.
    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.
    Color-Coded Plastic—These shims are color coded by thickness to quickly spot and grab the right size every time. Softer than metal, they won't mar delicate surfaces and they will never rust.
    Material Certificate—Shims include a report with a traceable lot number.
    Thk.
    Thk. Tolerance
    ID
    Tolerance
    OD Tolerance
    Min.
    Hardness
    Color
    Certificate Type
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
     
    1/32" ID × 7/64" OD
    0.003"-0.0005" to 0.0005"0" to 0.005"-0.005" to 0.005"Rockwell B70———25000000000000000
     
    3/64" ID × 1/8" OD
    0.003"-0.0005" to 0.0005"0" to 0.005"-0.005" to 0.005"Rockwell B70———2500000000000000
     
    1/16" ID × 5/32" OD
    0.003"-0.0005" to 0.0005"0" to 0.005"-0.005" to 0.005"Rockwell B70———2500000000000000
     
    5/64" ID × 5/32" OD
    0.003"-0.0005" to 0.0005"0" to 0.005"-0.005" to 0.005"Rockwell B70———2500000000000000
     
    3/32" ID × 13/64" OD
    0.003"-0.0005" to 0.0005"0" to 0.005"-0.005" to 0.005"Rockwell B70———2500000000000000
     
    1/8" ID × 3/16" OD
    0.003"-0.0005" to 0.0005"0" to 0.005"-0.005" to 0.005"Rockwell B70———2500000000000000
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B70——ASTM A24050000000000000
     
    3/16" ID × 1/4" OD
    0.003"-0.0005" to 0.0005"0" to 0.005"-0.005" to 0.005"Rockwell B70———2500000000000000
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B70——ASTM A24050000000000000
     
    1/4" ID × 3/8" OD
    0.003"-0.0005" to 0.0005"0" to 0.005"-0.005" to 0.005"Rockwell B70—Material Certificate
    		—2500000000000000
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B70——ASTM A240100000000000000
     
    5/16" ID × 1/2" OD
    0.003"-0.0005" to 0.0005"0" to 0.005"-0.005" to 0.005"Rockwell B70———2500000000000000
     
    11/32" ID × 13/16" OD
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B70——ASTM A240100000000000000
     
    3/8" ID × 9/16" OD
    0.003"-0.0005" to 0.0005"0" to 0.005"-0.005" to 0.005"Rockwell B70———2500000000000000
     
    3/8" ID × 5/8" OD
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B70——ASTM A240100000000000000
     
    1/2" ID × 3/4" OD
    0.003"-0.0005" to 0.0005"0" to 0.005"-0.005" to 0.005"Rockwell B70———2500000000000000
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B70——ASTM A240100000000000000
     
    5/8" ID × 1" OD
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B70——ASTM A2401000000000000000
     
    3/4" ID × 1 1/8" OD
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B70——ASTM A2401000000000000000
     
    7/8" ID × 1 3/8" OD
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B70——ASTM A24050000000000000
     
    1" ID × 1 1/2" OD
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B70——ASTM A24050000000000000
     
    1 1/8" ID × 1 5/8" OD
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B70——ASTM A24050000000000000
     
    1 1/4" ID × 1 3/4" OD
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B70——ASTM A24050000000000000
     
    1 3/8" ID × 1 7/8" OD
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B70——ASTM A24050000000000000
     
    1 1/2" ID × 2 1/8" OD
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B70——ASTM A240500000000000000
     
    1 3/4" ID × 2 3/4" OD
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B70——ASTM A24010000000000000
     
    2" ID × 2 3/4" OD
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B70——ASTM A24010000000000000
     
    Highly-Corrosion-Resistant 316 Stainless Steel
     
    1/8" ID × 3/16" OD
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B70——ASTM A24050000000000000
     
    3/16" ID × 1/4" OD
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B70——ASTM A24050000000000000
     
    1/4" ID × 3/8" OD
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B70——ASTM A240100000000000000
     
    5/16" ID × 19/32" OD
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B70——ASTM A2401000000000000000
     
    11/32" ID × 13/16" OD
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B70——ASTM A2401000000000000000
     
    3/8" ID × 5/8" OD
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B70——ASTM A2401000000000000000
     
    1/2" ID × 3/4" OD
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B70——ASTM A2401000000000000000
     
    5/8" ID × 1" OD
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B70——ASTM A24050000000000000
     
    3/4" ID × 1 1/8" OD
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B70——ASTM A24050000000000000
     
    7/8" ID × 1 3/8" OD
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B70——ASTM A24050000000000000
     
    1" ID × 1 1/2" OD
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B70——ASTM A24050000000000000
     
    Carbon Steel
     
    1/8" ID × 3/16" OD
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B65———5000000000000
     
    3/16" ID × 1/4" OD
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B65———5000000000000
     
    1/4" ID × 3/8" OD
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B65———10000000000000
     
    11/32" ID × 13/16" OD
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B65———10000000000000
     
    3/8" ID × 5/8" OD
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B65———10000000000000
     
    1/2" ID × 3/4" OD
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B65———10000000000000
     
    5/8" ID × 1" OD
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B65———10000000000000
     
    3/4" ID × 1 1/8" OD
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B65———100000000000000
     
    7/8" ID × 1 3/8" OD
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B65———100000000000000
     
    1" ID × 1 1/2" OD
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B65———100000000000000
     
    1 1/8" ID × 1 5/8" OD
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B65———100000000000000
     
    1 1/4" ID × 1 3/4" OD
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B65———100000000000000
     
    1 3/8" ID × 1 7/8" OD
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B65———100000000000000
     
    1 1/2" ID × 2 1/8" OD
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B65———100000000000000
     
    1 3/4" ID × 2 3/4" OD
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B65———100000000000000
     
    2" ID × 2 3/4" OD
    0.003"-0.0005" to 0.0005"0" to 0.011"-0.002" to 0.002"Rockwell B65———100000000000000
     
    Brass
     
    3/32" ID × 13/64" OD
    0.003"-0.0005" to 0.0005"0" to 0.005"-0.005" to 0.005"Rockwell B70———100000000000000
     
    1/8" ID × 3/16" OD
    0.003"-0.0005" to 0.0005"0" to 0.005"-0.005" to 0.005"Rockwell B70———100000000000000
     
    3/16" ID × 1/4" OD
    0.003"-0.0005" to 0.0005"0" to 0.005"-0.005" to 0.005"Rockwell B70———100000000000000
     
    1/4" ID × 3/8" OD
    0.003"-0.0005" to 0.0005"0" to 0.005"-0.005" to 0.005"Rockwell B70———1000000000000000
     
    5/16" ID × 1/2" OD
    0.003"-0.0005" to 0.0005"0" to 0.005"-0.005" to 0.005"Rockwell B70———1000000000000000
     
    3/8" ID × 9/16" OD
    0.003"-0.0005" to 0.0005"0" to 0.005"-0.005" to 0.005"Rockwell B70———1000000000000000
     
    1/2" ID × 3/4" OD
    0.003"-0.0005" to 0.0005"0" to 0.005"-0.005" to 0.005"Rockwell B70———1000000000000000
     
    Color-Coded Plastic
     
    3/8" ID × 5/8" OD
    0.003"-0.00015" to 0.00015"0" to 0.015"-0.005" to 0.005"—Green——1000000000000000
     
    1/2" ID × 3/4" OD
    0.003"-0.00015" to 0.00015"0" to 0.015"-0.005" to 0.005"—Green——1000000000000000
     
    5/8" ID × 1" OD
    0.003"-0.00015" to 0.00015"0" to 0.015"-0.005" to 0.005"—Green——1000000000000000
     
    3/4" ID × 1 1/8" OD
    0.003"-0.00015" to 0.00015"0" to 0.015"-0.005" to 0.005"—Green——1000000000000000
     
    1" ID × 1 1/2" OD
    0.003"-0.00015" to 0.00015"0" to 0.015"-0.005" to 0.005"—Green——1000000000000000
     
    1 1/4" ID × 1 3/4" OD
    0.003"-0.00015" to 0.00015"0" to 0.015"-0.005" to 0.005"—Green——1000000000000000
     
    1 1/2" ID × 2 1/8" OD
    0.003"-0.00015" to 0.00015"0" to 0.015"-0.005" to 0.005"—Green——1000000000000000
     
    1 3/4" ID × 2 3/4" OD
    0.003"-0.00015" to 0.00015"0" to 0.015"-0.005" to 0.005"—Green——1000000000000000
     
    2" ID × 2 3/4" OD
    0.003"-0.00015" to 0.00015"0" to 0.015"-0.005" to 0.005"—Green——1000000000000000
     

    Shim Stock

    Image of Product. Front orientation. Shim Stock. Sold Individually.
    Cut into custom shapes to create shims that suit your needs. With thickness tolerances as fine as a strand of hair, the shims will precisely align, space, and level components on dies, presses, 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 areas because it resists rust. However, it will corrode or pit when exposed to salt water and chemicals.
    Highly-Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel, it won't degrade when exposed to harsh weather, salt water, and most chemicals.
    High-Strength 17-7 PH Stainless Steel—Similar in strength to steel, it won’t rust in wet and outdoor areas but can’t withstand harsh chemicals like 316 stainless steel.
    Extreme-Strength 17-4 PH Stainless Steel—Stronger than 17-7 PH stainless steel, it won’t rust in wet and outdoor areas but can’t withstand harsh chemicals like 316 stainless steel.
    Carbon Steel—Best for dry areas since moisture will cause it to rust.
    Stress-Resistant Spring Steel—Harder and holds its shape better than carbon steel. Use it for high-stress applications, such as leveling heavy machinery. It's best for dry areas since moisture will cause it to rust.
    Aluminum and Painted Aluminum—An alternative to stainless steel for rust resistance but less hard so it may not retain its shape. One-third the weight of steel, it's often used in robotics and automation.
    Brass—Picked for its warm, polished look. Similar to 18-8 stainless steel, it resists rusting in wet and outdoor areas.
    Copper—A good conductor of heat, it’s often used to install heat sinks. As our softest metal, it prevents component damage but may not retain its shape as well as other metals.
    Nickel—Often used in marine and water treatment applications, it won't break down from salt water and alkalis. It's also a good conductor of heat.
    Ultra-Chemical-Resistant PTFE—The most chemical-resistant shim stock we offer, it stands up to the widest range of harsh acids, bases, solvents, and corrosive cleaners, even at temperatures up to 500° F. It also won't mar delicate surfaces.
    Plastic—Softer than metal, it won't mar delicate surfaces and it will never rust.
    Temper Rating—Choose half hard to create shims that you’ll need to bend or shape. Opt for full hard to make stronger shims that will maintain their shape under loads.
    Thk.
    Thk. Tolerance
    Temper Rating
    Color
    Type
    Certificate
    Form
    Specs. Met
    Form
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
     
    6" Wide × 25" Long
    0.003"-0.00015" to 0.00015"Full Hard—Material Certificate
    		Paper
    		ASTM A666, SAE AMS5906, SAE AMS5913Sheet10000000000000
     
    6" Wide × 50" Long
    0.003"-0.00015" to 0.00015"1/2 Hard—Material Certificate
    		Paper
    		ASTM A666Roll1000000000000
    0.003"-0.00015" to 0.00015"Full Hard—Material Certificate
    		Paper
    		ASTM A666, SAE AMS5906, SAE AMS5913Roll1000000000000
     
    6" Wide × 100" Long
    0.003"-0.00015" to 0.00015"1/2 Hard—Material Certificate
    		Paper
    		ASTM A666Roll10000000000000
    0.003"-0.00015" to 0.00015"Full Hard—Material Certificate
    		Paper
    		ASTM A666, SAE AMS5906, SAE AMS5913Roll10000000000000
     
    8" Wide × 12" Long
    0.003"-0.00015" to 0.00015"1/2 Hard—Material Certificate
    		Paper
    		ASTM A666Sheet1000000000000
    0.003"-0.00015" to 0.00015"Full Hard—Material Certificate
    		Paper
    		ASTM A666, SAE AMS5906, SAE AMS5913Sheet10000000000000
     
    10" Wide × 12" Long
    0.003"-0.00015" to 0.00015"Full Hard—Material Certificate
    		Paper
    		ASTM A666, SAE AMS5906Sheet10000000000000
     
    12" Wide × 24" Long
    0.003"-0.00015" to 0.00015"Full Hard—Material Certificate
    		Paper
    		ASTM A666, SAE AMS5906Sheet10000000000000
     
    12" Wide × 50" Long
    0.003"-0.00015" to 0.00015"Full Hard—Material Certificate
    		Paper
    		ASTM A666, SAE AMS5906, SAE AMS5913Roll1000000000000
     
    12" Wide × 100" Long
    0.003"-0.00015" to 0.00015"Full Hard—Material Certificate
    		Paper
    		ASTM A666, SAE AMS5906, SAE AMS5913Roll1000000000000
     
    12" Wide × 120" Long
    0.003"-0.00015" to 0.00015"Full Hard—Material Certificate
    		Paper
    		ASTM A666, SAE AMS5906Roll100000000000000
     
    24" Wide × 24" Long
    0.003"-0.00015" to 0.00015"Full Hard—Material Certificate
    		Paper
    		ASTM A666, SAE AMS5906, SAE AMS5913Sheet10000000000000
     
    24" Wide × 50" Long
    0.003"-0.00015" to 0.00015"Full Hard—Material Certificate
    		Paper
    		ASTM A666, SAE AMS5906, SAE AMS5913Roll1000000000000
     
    Highly-Corrosion-Resistant 316 Stainless Steel
     
    6" Wide × 12" Long
    0.003"-0.00015" to 0.00015"——Material Certificate
    		Paper
    		ASTM A240, SAE AMS5507, SAE AMS5524Sheet1000000000000
     
    6" Wide × 25" Long
    0.003"-0.00015" to 0.00015"——Material Certificate
    		Paper
    		ASTM A240, ASTM A666, SAE AMS5507, SAE AMS5524Sheet10000000000000
     
    6" Wide × 50" Long
    0.003"-0.00015" to 0.00015"——Material Certificate
    		Paper
    		ASTM A240, SAE AMS5507, SAE AMS5524Roll10000000000000
     
    6" Wide × 100" Long
    0.003"-0.00015" to 0.00015"——Material Certificate
    		Paper
    		ASTM A240, SAE AMS5507, SAE AMS5524Roll10000000000000
     
    8" Wide × 12" Long
    0.003"-0.00015" to 0.00015"——Material Certificate
    		Paper
    		ASTM A240, SAE AMS5507, SAE AMS5524Sheet1000000000000
     
    10" Wide × 12" Long
    0.003"-0.00015" to 0.00015"——Material Certificate
    		Paper
    		ASTM A240, ASTM A666, SAE AMS5507, SAE AMS5524Sheet10000000000000
     
    12" Wide × 12" Long
    0.003"-0.00015" to 0.00015"——Material Certificate
    		Paper
    		ASTM A240, SAE AMS5507, SAE AMS5524Sheet10000000000000
     
    12" Wide × 24" Long
    0.003"-0.00015" to 0.00015"——Material Certificate
    		Paper
    		ASTM A240, SAE AMS5507, SAE AMS5524Sheet10000000000000
     
    12" Wide × 50" Long
    0.003"-0.00015" to 0.00015"——Material Certificate
    		Paper
    		ASTM A240, SAE AMS5507, SAE AMS5524Roll10000000000000
     
    12" Wide × 100" Long
    0.003"-0.00015" to 0.00015"——Material Certificate
    		Paper
    		ASTM A240, SAE AMS5507, SAE AMS5524Roll100000000000000
     
    12" Wide × 120" Long
    0.003"-0.00015" to 0.00015"——Material Certificate
    		Paper
    		ASTM A240, ASTM A666, SAE AMS5507, SAE AMS5524Roll100000000000000
     
    24" Wide × 24" Long
    0.003"-0.00015" to 0.00015"——Material Certificate
    		Paper
    		ASTM A240, ASTM A666, SAE AMS5507, SAE AMS5524Sheet1000000000000
     
    24" Wide × 50" Long
    0.003"-0.00015" to 0.00015"——Material Certificate
    		Paper
    		ASTM A240, SAE AMS5507, SAE AMS5524Roll100000000000000
     
    24" Wide × 100" Long
    0.003"-0.00015" to 0.00015"——Material Certificate
    		Paper
    		ASTM A240, SAE AMS5507, SAE AMS5524Roll100000000000000
     
    High-Strength 17-7 PH Stainless Steel
     
    6" Wide × 50" Long
    0.003"-0.00015" to 0.00015"Full Hard—Material Certificate
    		Paper
    		ASTM A693Roll1000000000000
     
    Extreme-Strength 17-4 PH Stainless Steel
     
    4" Wide × 60" Long
    0.003"-0.00015" to 0.00015"——Material Certificate
    		Paper
    		ASTM A693Roll10000000000000
     
    Carbon Steel
     
    6" Wide × 12" Long
    0.003"-0.0003" to 0.0003"Full Hard—Material Certificate
    		Paper
    		ASTM A109Sheet1000000000000
     
    6" Wide × 25" Long
    0.003"-0.0003" to 0.0003"Full Hard—Material Certificate
    		Paper
    		ASTM A109Sheet1000000000000
     
    6" Wide × 50" Long
    0.003"-0.0003" to 0.0003"Full Hard—Material Certificate
    		Paper
    		—Roll1000000000000
     
    6" Wide × 60" Long
    0.003"-0.0003" to 0.0003"Full Hard—Material Certificate
    		Paper
    		—Roll10000000000000
     
    6" Wide × 100" Long
    0.003"-0.0003" to 0.0003"Full Hard—Material Certificate
    		Paper
    		—Roll10000000000000
     
    6" Wide × 180" Long
    0.003"-0.0003" to 0.0003"Full Hard—Material Certificate
    		Paper
    		—Roll10000000000000
     
    8" Wide × 12" Long
    0.003"-0.0003" to 0.0003"Full Hard—Material Certificate
    		Paper
    		ASTM A109Sheet50000000000000
     
    12" Wide × 120" Long
    0.003"-0.0003" to 0.0003"Full Hard—Material Certificate
    		Paper
    		—Roll10000000000000
     
    24" Wide × 24" Long
    0.003"-0.0003" to 0.0003"Full Hard—Material Certificate
    		Paper
    		ASTM A109Sheet10000000000000
     
    24" Wide × 50" Long
    0.003"-0.0003" to 0.0003"Full Hard—Material Certificate
    		Paper
    		ASTM A109Sheet10000000000000
     
    Stress-Resistant Spring Steel
     
    3" Wide × 50" Long
    0.003"-0.0003" to 0.0003"Full Hard—Material Certificate
    		Paper
    		ASTM A682, ASTM A684, MIL-S-7947Roll1000000000000
     
    Aluminum
     
    6" Wide × 50" Long
    0.003"-0.00015" to 0.00015"Full Hard—Material Certificate
    		Paper
    		ASTM B209Roll1000000000000
     
    6" Wide × 100" Long
    0.003"-0.00015" to 0.00015"Full Hard—Material Certificate
    		Paper
    		ASTM B209Roll1000000000000
     
    Painted Aluminum
     
    6" Wide × 24" Long
    0.003"-0.0003" to 0.0003"1/2 Hard to Full HardGreenMaterial Certificate
    		Paper
    		—Sheet100000000000
     
    12" Wide × 24" Long
    0.003"-0.0003" to 0.0003"1/2 Hard to Full HardGreenMaterial Certificate
    		Paper
    		—Sheet1000000000000
     
    Brass
     
    6" Wide × 50" Long
    0.003"-0.0003" to 0.0003"1/2 Hard—Material Certificate
    		Paper
    		ASTM B36Roll10000000000000
     
    6" Wide × 60" Long
    0.003"-0.0003" to 0.0003"1/2 Hard—Material Certificate
    		Paper
    		ASTM B36Roll1000000000000
     
    6" Wide × 100" Long
    0.003"-0.0003" to 0.0003"1/2 Hard—Material Certificate
    		Paper
    		ASTM B36Roll1000000000000
     
    8" Wide × 12" Long
    0.003"-0.0003" to 0.0003"1/2 Hard—Material Certificate
    		Paper
    		ASTM B36Sheet1000000000000
     
    12" Wide × 120" Long
    0.003"-0.0003" to 0.0003"1/2 Hard—Material Certificate
    		Paper
    		ASTM B36Roll1000000000000
     
    Copper
     
    6" Wide × 50" Long
    0.003"-0.0003" to 0.0003"——Material Certificate
    		Paper
    		ASTM B152Roll1000000000000
     
    6" Wide × 100" Long
    0.003"-0.0003" to 0.0003"——Material Certificate
    		Paper
    		ASTM B152Roll1000000000000
     
    8" Wide × 12" Long
    0.003"-0.0003" to 0.0003"——Material Certificate
    		Paper
    		ASTM B152Sheet10000000000000
     
    Nickel
     
    6" Wide × 25" Long
    0.003"-0.00015" to 0.00015"——Material Certificate
    		Paper
    		ASTM B160, ASTM B162, ASTM B163Roll1000000000000
     
    6" Wide × 50" Long
    0.003"-0.00015" to 0.00015"——Material Certificate
    		Paper
    		ASTM B160, ASTM B162, ASTM B163Roll10000000000000
     
    Ultra-Chemical-Resistant PTFE
     
    6" Wide × 50" Long
    0.003"-0.0003" to 0.0003"—White——ASTM D3308, MIL-P-22241Roll10000000000000
     
    6" Wide × 100" Long
    0.003"-0.0003" to 0.0003"—White——ASTM D3308, MIL-P-22241Roll10000000000000
     
    8" Wide × 12" Long
    0.003"-0.0003" to 0.0003"—White——ASTM D3308, MIL-P-22241Sheet100000000000
     
    12" Wide × 24" Long
    0.003"-0.0003" to 0.0003"—White——ASTM D3308, MIL-P-22241Roll1000000000000
     
    20" Wide × 50" Long
    0.003"-0.0003" to 0.0003"—White——ASTM D3308, MIL-P-22241Roll1000000000000
     
    Plastic
     
    5" Wide × 20" Long
    0.003"-0.0002" to 0.0002"—Green———Sheet100000000000
     
    10" Wide × 20" Long
    0.003"-0.0002" to 0.0002"—Green———Sheet100000000000
     
    12" Wide × 24" Long
    0.003"-0.0002" to 0.0002"—Green———Sheet10000000000000
     
    20" Wide × 20" Long
    0.003"-0.0002" to 0.0002"—Green———Sheet1000000000000
     
    20" Wide × 50" Long
    0.003"-0.0002" to 0.0002"—Green———Sheet10000000000000
    0.003"-0.0002" to 0.0002"—Green———Roll1000000000000
     

    Slotted Shims

    Image of ProductInUse. Front orientation. Shims. Precision Adjust, Slot, Sold Individually.
    Image of Product. Front orientation. Shims. Precision Adjust, Slot, Sold Individually, Tab End.
    Image of Product. Front orientation. Shims. Precision Adjust, Slot, Sold Individually, Square End.

    Tab End

    Square End

    Slip these shims around existing mounting fasteners to precisely align and level components such as pumps, compressors, and gearboxes with motors, all without disassembling them. They’re also good for leveling machines on uneven surfaces. To reduce sizing errors, these shims are either labeled with their thickness so there's no need to measure or color coded by thickness to quickly spot the right size.
    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.
    Painted Aluminum—These shims are an alternative to stainless steel for rust resistance but aren't as hard so they may not retain their shape as well. One-third the weight of steel, they’re commonly used in robotics and automation.
    Insertion Tools—Ease shim insertion and removal, keeping your fingers clear in the process.
    Shims
    Insertion Tools
    Slot
    Each
    Package
    Thk.
    Thk. Tolerance
    For Max.
    Screw Size
    Wd.
    Dp.
    Min.
    Hardness
    Identification
    Type
    Color
    End
    Shape
    Each
    Pkg.
    Qty.
    Pkg.
    Each
    18-8 Stainless Steel
     
    1" Lg. × 1" Wd. (Shim Trade Size AAA)
    0.003"-0.00015" to 0.00015"1/4"
    		5/16"5/8"Rockwell C42Labeled—Tab0000000000000020000000000000000000000000000
     
    1 1/2" Lg. × 1 1/2" Wd. (Shim Trade Size AA)
    0.003"-0.00015" to 0.00015"3/8"
    		7/16"61/64"Rockwell B85Labeled—Tab0000000000000200000000000000000000000000
     
    2" Lg. × 2" Wd. (Shim Trade Size A)
    0.003"-0.00015" to 0.00015"1/2"
    		9/16"1 9/32"Rockwell B85Labeled—Tab000000000002000000000000000000000000000
     
    2 1/2" Lg. × 2 1/2" Wd. (Shim Trade Size BB)
    0.003"-0.00015" to 0.00015"5/8"
    		11/16"1 19/32"Rockwell B85Labeled—Tab000000000000020000000000000000000000000000
     
    3" Lg. × 3" Wd. (Shim Trade Size B)
    0.003"-0.00015" to 0.00015"3/4"
    		13/16"1 29/32"Rockwell B85Labeled—Tab00000000000200000000000000000000000000
     
    4" Lg. × 4" Wd. (Shim Trade Size C)
    0.003"-0.00015" to 0.00015"1 1/8"
    		1 3/16"2 19/32"Rockwell B85Labeled—Tab00000000000200000000000000000000000000
     
    5" Lg. × 5" Wd. (Shim Trade Size D)
    0.003"-0.00015" to 0.00015"1 1/2"
    		1 9/16"3 9/32"Rockwell B85Labeled—Tab000000000002000000000000000000000000000
     
    6" Lg. × 5" Wd. (Shim Trade Size DD)
    0.003"-0.00015" to 0.00015"1 1/2"
    		1 9/16"4 1/2"Rockwell C42Labeled—Tab00000000000002000000000000000———0
     
    6" Lg. × 6" Wd. (Shim Trade Size E)
    0.003"-0.00015" to 0.00015"1 7/8"
    		1 15/16"4"Rockwell B85Labeled—Tab00000000000002000000000000000000000000000
     
    6" Lg. × 6" Wd. (Shim Trade Size G)
    0.003"-0.00015" to 0.00015"2 1/4"
    		2 5/16"4 3/16"Rockwell B85Labeled—Tab00000000000002000000000000000000000000000
     
    8" Lg. × 8" Wd. (Shim Trade Size H)
    0.003"-0.00015" to 0.00015"2 1/4"
    		2 5/16"5 3/16"Rockwell B85Labeled—Tab0000000000000200000000000000000000000000000
     
    Painted Aluminum
     
    1 1/2" Lg. × 1 1/2" Wd. (Shim Trade Size AA)
    0.003"-0.0003" to 0.0003"5/16"
    		3/8"15/16"Not RatedColor CodedGreenSquare———020000000000000———0
     
    2" Lg. × 2" Wd. (Shim Trade Size A)
    0.003"-0.0003" to 0.0003"3/8"
    		7/16"1 7/32"Not RatedColor CodedGreenSquare———02000000000000———0
     
    3" Lg. × 3" Wd. (Shim Trade Size B)
    0.003"-0.0003" to 0.0003"1/2"
    		9/16"1 25/32"Not RatedColor CodedGreenSquare———02000000000000———0
     
    4" Lg. × 4" Wd. (Shim Trade Size C)
    0.003"-0.0003" to 0.0003"7/8"
    		1"2 1/2"Not RatedColor CodedGreenSquare———020000000000000———0
     

    Adhesive-Back Shim Stock

    Image of Product. Front orientation. Shim Stock. Adhesive-Back Shim Stock.
    Stick with confidence—a durable adhesive keeps this shim stock from sliding out of place. Cut the shim stock into custom shapes to create shims that suit your needs. With thickness tolerances as fine as a strand of hair, the shims will precisely align, space, and level components on dies, presses, and machinery.
    18-8 Stainless Steel—The choice for wet and outdoor areas because it resists rust. However, it will corrode or pit when exposed to salt water and chemicals.
    Aluminum—An alternative to stainless steel for rust resistance but less hard so it may not retain its shape. One-third the weight of steel, it's often used in robotics and automation.
    Brass—Picked for its warm, polished look. Similar to 18-8 stainless steel, it resists rusting in wet and outdoor areas.
    Temper Rating—Choose half hard to create shims that you’ll need to bend or shape. Opt for full hard to make stronger shims that will maintain their shape under loads.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    Certificate
    Thk.
    Thk. Tolerance
    Material
    Thk.
    Adhesive
    Thk.
    Adhesive
    Type
    Temper
    Rating
    Type
    Form
    Specs.
    Met
    Form
    Each
    18-8 Stainless Steel
     
    8" Wide × 12" Long
    0.003"-0.00005" to 0.00005"0.001"0.002"AcrylicFull HardMaterial Certificate
    		Digital
    		ASTM A666Sheet0000000000000
     
    Aluminum
     
    6" Wide × 12" Long
    0.003"-0.0001" to 0.0001"0.001"0.002"Acrylic—Material Certificate
    		Digital
    		ASTM B479Sheet0000000000000
     
    Brass
     
    8" Wide × 12" Long
    0.003"-0.0001" to 0.0001"0.001"0.002"Acrylic1/2 HardMaterial Certificate
    		Digital
    		ASTM B36Sheet0000000000000
     

    Made-to-Order Shims

    Image of Product. Front orientation. Shims. Sold Individually, Made-to-Order.
    If you need a unique shim shape or size, we’ll precision cut it for you. 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.
    Send your dimensioned DWG, DXF, IGES, or STEP file to sales@mcmaster.com. Please leave at least 1/8" wall between shim edge and holes. Minimum hole size is 1/8". Shims should be no smaller than 1" × 1" square or 1" OD. Maximum shim dimension is the largest overall length, width, or diameter of your custom shim.
    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.
    Carbon Steel—Best for dry environments since moisture will cause these shims to rust.
    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.
    Material Certificate—Shims include a report with a traceable lot number.
    2" × 2" Maximum
    Shim Size
    5" × 5" Maximum
    Shim Size
    7" × 7" Maximum
    Shim Size
    11" × 11" Maximum
    Shim Size
    23" × 23" Maximum
    Shim Size
    Thk.
    Thk. Tolerance
    Min.
    Hardness
    Certificate Type
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Pkg.
    Qty.
    Pkg.
    Pkg.
    Qty.
    Pkg.
    Pkg.
    Qty.
    Pkg.
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    0.003"-0.00015" to 0.00015"Rockwell C42Material Certificate
    		ASTM A240160000000000000004000000000000000900000000000000040000000000000001000000000000000
     
    Highly-Corrosion-Resistant 316 Stainless Steel
    0.003"-0.00015" to 0.00015"Not RatedMaterial Certificate
    		ASTM A240, Fed. Spec. QQ-S-7661600000000000000400000000000000900000000000000040000000000000001000000000000000
     
    Carbon Steel
    0.003"-0.00015" to 0.00015"Rockwell B90Material Certificate
    		ASTM A109, Fed. Spec. QQ-S-6981600000000000000400000000000000900000000000000040000000000000001000000000000000
     
    Brass
    0.003"-0.00015" to 0.00015"Rockwell B60Material Certificate
    		ASTM B36, Fed. Spec. QQ-B-6131600000000000000400000000000000900000000000000040000000000000001000000000000000
     

    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.
    Carbon Steel—Best for dry environments since moisture will cause these shims to rust.
    Notch
    Thk.
    Thk. Tolerance
    ID
    ID
    Tolerance
    OD
    OD Tolerance
    Wd.
    Dp.
    Min.
    Hardness
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
     
    For 1/2" Diameter Shafts
    0.003"-0.0003" to 0.0003"1/2"0" to 0.011"3/4"-0.002" to 0.002"1/8"3/64"Rockwell B8010000000000000000
     
    For 3/4" Diameter Shafts
    0.003"-0.0003" to 0.0003"3/4"0" to 0.011"1 1/8"-0.002" to 0.002"3/16"5/64"Rockwell B80100000000000000
     
    For 7/8" Diameter Shafts
    0.003"-0.0003" to 0.0003"7/8"0" to 0.011"1 3/8"-0.002" to 0.002"3/16"5/64"Rockwell B801000000000000000
     
    For 1" Diameter Shafts
    0.003"-0.0003" to 0.0003"1"0" to 0.011"1 1/2"-0.002" to 0.002"1/4"3/32"Rockwell B80100000000000000
     
    For 1 1/4" Diameter Shafts
    0.003"-0.0003" to 0.0003"1 1/4"0" to 0.011"1 3/4"-0.002" to 0.002"5/16"1/8"Rockwell B8050000000000000
     
    For 1 1/2" Diameter Shafts
    0.003"-0.0003" to 0.0003"1 1/2"0" to 0.011"2 1/8"-0.002" to 0.002"3/8"5/32"Rockwell B8050000000000000
     
    For 2" Diameter Shafts
    0.003"-0.0003" to 0.0003"2"0" to 0.011"2 3/4"-0.002" to 0.002"1/2"3/16"Rockwell B8010000000000000
     
    Carbon Steel
     
    For 5/8" Diameter Shafts
    0.003"-0.0003" to 0.0003"5/8"0" to 0.011"1"-0.002" to 0.002"3/16"1/16"Rockwell B8410000000000000
     
    For 3/4" Diameter Shafts
    0.003"-0.0003" to 0.0003"3/4"0" to 0.011"1 1/8"-0.002" to 0.002"3/16"5/64"Rockwell B84100000000000000
     
    For 7/8" Diameter Shafts
    0.003"-0.0003" to 0.0003"7/8"0" to 0.011"1 3/8"-0.002" to 0.002"3/16"5/64"Rockwell B84100000000000000
     
    For 1" Diameter Shafts
    0.003"-0.0003" to 0.0003"1"0" to 0.011"1 1/2"-0.002" to 0.002"1/4"3/32"Rockwell B84100000000000000
     
    For 1 1/4" Diameter Shafts
    0.003"-0.0003" to 0.0003"1 1/4"0" to 0.011"1 3/4"-0.002" to 0.002"5/16"1/8"Rockwell B84100000000000000
     
    For 1 1/2" Diameter Shafts
    0.003"-0.0003" to 0.0003"1 1/2"0" to 0.011"2 1/8"-0.002" to 0.002"3/8"5/32"Rockwell B84100000000000000
     
    For 2" Diameter Shafts
    0.003"-0.0003" to 0.0003"2"0" to 0.011"2 3/4"-0.002" to 0.002"1/2"3/16"Rockwell B8450000000000000
     

    Shims for D-Profile Shafts

    Image of Product. Front orientation. Shims. For D-Profile Shafts, Sold Individually, Round.
    With a partially flat inside surface, these shims won’t spin out of position to precisely align and space components on D-profile shafts and arbors.
    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.
    Carbon Steel—Best for dry environments since moisture will cause these shims to rust.
    Thk.
    Thk. Tolerance
    ID
    ID Tolerance
    OD
    OD Tolerance
    Flat
    Wd.
    Min.
    Hardness
    Pkg.
    Qty.
    Pkg.
    Carbon Steel
     
    For 3/8" Diameter Shafts
    0.003"-0.0003" to 0.0003"0.385"-0.01" to 0.01"5/8"-0.01" to 0.01"0.173"Rockwell B905000000000000000
     
    For 1/2" Diameter Shafts
    0.003"-0.0003" to 0.0003"0.51"-0.01" to 0.01"3/4"-0.01" to 0.01"0.235"Rockwell B90500000000000000
     
    For 5/8" Diameter Shafts
    0.003"-0.0003" to 0.0003"0.635"-0.01" to 0.01"1"-0.01" to 0.01"0.298"Rockwell B90500000000000000
     
    For 3/4" Diameter Shafts
    0.003"-0.0003" to 0.0003"0.76"-0.01" to 0.01"1 1/8"-0.01" to 0.01"0.36"Rockwell B90500000000000000
     
    For 1" Diameter Shafts
    0.003"-0.0003" to 0.0003"1.01"-0.01" to 0.01"1 1/2"-0.01" to 0.01"0.485"Rockwell B90500000000000000
     
    For 1 1/4" Diameter Shafts
    0.003"-0.0003" to 0.0003"1.26"-0.01" to 0.01"1 3/4"-0.01" to 0.01"0.61"Rockwell B90500000000000000
     
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