McMaster-Carr logo
    Filter by
    Belt Trade Size
    Industrial Info Compare
    System of Measurement
    Outer Circumference
    Attribute Image
    Number of Bands
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Belt Type
    Color
    Reinforcement Material
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Performance
    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)
    12 Products
    About Belts
    industrial info icon

    Measure your old V-belt, timing belt, or pulleys to find the right belt replacement if you don’t know the trade size.

    V-Belts

    Image of Product. Front orientation. V-Belts. V-Belts.
    Image of Attribute. Front orientation. Contains Annotated. V-Belts.
    4L Trade Size and 5L Trade Size—2L, 3L, 4L, and 5L V-belts are commonly used on light duty drives with fractional-horsepower motors.
    A Trade Size, B Trade Size, and C Trade Size—A, B, and C V-belts are for medium and heavy duty drives.
    Belt Trade
    No.
    Outer
    Circumference
    No. of
    Bands
    Material
    Reinforcement
    Material
    Color
    Each
    4L Trade Size—1/2" Wide × 5/16" Thick
    4L76076"1EPDM
    		Polyester PlasticBlack6191K3000000
     
    5L Trade Size—21/32" Wide × 3/8" Thick
    5L76076"1EPDM
    		Polyester PlasticBlack6192K7400000
     
    A Trade Size—1/2" Wide × 5/16" Thick
    A7476"1EPDM
    		Polyester PlasticBlack6186K17700000
     
    B Trade Size—21/32" Wide × 13/32" Thick
    B7376"1Buna-N/SBRPolyester PlasticBlack6187K16700000
     
    C Trade Size—7/8" Wide × 17/32" Thick
    C7276"1EPDM
    		Polyester PlasticBlack65275K1800000
     

    Cogged V-Belts

    Image of Product. Front orientation. V-Belts. Cogged V-Belts.
    Image of Attribute. Front orientation. Contains Annotated. Cogged V-Belts.
    More flexible than smooth V-belts, these have notches that allow them to bend around small-diameter pulleys and accommodate twists and turns on curved drives.
    Belt Trade
    No.
    Outer
    Circumference
    No. of
    Bands
    Material
    Reinforcement
    Material
    Color
    Each
    AX Trade Size—1/2" Wide × 0.3125" Thick
    AX7476"1EPDM
    		Polyester PlasticBlack6054K173000000
     
    BX Trade Size—21/32" Wide × 0.4063" Thick
    BX7376"1EPDM
    		Polyester PlasticBlack6057K19100000
     

    Precision V-Belts

    Image of Product. Front orientation. V-Belts. Precision V-Belts.
    Ensure even load distribution on drives with multiple belts. These are matched to the trade size within a tight tolerance for better performance and reduced wear compared to standard A- and B-section V-belts.
    Belt Trade
    No.
    Outer
    Circumference
    No. of
    Bands
    Material
    Reinforcement
    Material
    Color
    Each
    A Trade Size—1/2" Wide × 5/16" Thick
    A7476"1EPDM
    		Polyester PlasticBlack7821T219000000
     
    B Trade Size—21/32" Wide × 13/32" Thick
    B7376"1EPDM
    		Polyester PlasticBlack7899K2200000
     

    Banded V-Belts

    Also known as serpentine belts, these have multiple bands that function as a single unit for consistent drive performance and even load distribution. They handle shock loads better than standard belts.
    A Trade Size—1/2" Wide × 5/16" Thick
    Image of Product. Front orientation. V-Belts. Banded V-Belts.
    2 Bands
    Belt Trade
    No.
    Outer
    Circumference
    Material
    Reinforcement
    Material
    Color
    Each
    A7476"SBR
    		Polyester PlasticBlack1093N352000000
    B Trade Size—21/32" Wide × 13/32" Thick
    Image of Product. Front orientation. V-Belts. Banded V-Belts.
    Belt Trade
    No.
    Outer
    Circumference
    Material
    Reinforcement
    Material
    Color
    2
    Bands
    3
    Bands
    4
    Bands
    B7376"SBR
    		Polyester PlasticBlack7888K3900000000000000000000

    Double V-Belts

    Image of Product. Front orientation. V-Belts. Double V-Belts.
    Image of Attribute. Front orientation. Contains Annotated. Double V-Belts.
    Grooves on both sides of these belts transmit equal power, making them ideal for serpentine drives.
    Belt Trade
    No.
    Outer
    Circumference
    No. of
    Bands
    Material
    Reinforcement
    Material
    Color
    Each
    BB Trade Size—21/32" Wide × 17/32" Thick
    BB7176"1Neoprene
    		Polyester PlasticBlack5719N41000000
     
    back to top