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    61 Products

    Sprockets

    Image of Product. Front orientation. Drive Sprockets. Sprockets, For Single Strand.

    For Single Strand

    Sprocket teeth mesh with your roller chain to smoothly transmit power. These U.S.-made sprockets have machined teeth for a more precise fit than flame-cut or punched teeth, allowing them to glide in and out of the chain to reduce wear and extend chain life.
    Steel—Steel is strong, but best for dry environments since moisture will cause it to rust.
    Finished Bore—Mount these sprockets onto your shaft and secure with a set screw—no machining required.
    For
    Roller Chain
    Keyway
    Trade
    No.
    Std.
    Pitch
    No. of
    Teeth
    OD
    Bore
    Type
    For Shaft
    Dia.
    Wd.
    Dp.
    Each
    For Single Strand
     
    Steel
    40ANSI1/2"447 5/16"Finished3/4"3/16"3/32"00000000000000
    40ANSI1/2"447 5/16"Finished7/8"3/16"3/32"0000000000000
    40ANSI1/2"447 5/16"Finished1"1/4"1/8"0000000000000
    40ANSI1/2"447 5/16"Finished1 1/4"1/4"1/8"0000000000000
    40ANSI1/2"447 5/16"Finished1 3/8"5/16"5/32"0000000000000
    40ANSI1/2"447 5/16"Finished1 1/2"3/8"3/16"0000000000000
     

    High-Torque HTD Timing Belt Pulleys

    Image of Product. Front orientation. Timing Belt Drive Pulleys. High-Torque HTD Timing Belt Pulleys, Bushing Bore.

    Bushing Bore

    Image of Attribute. Front orientation. Contains Annotated, Border. Curved (HTD) Teeth.
    Curved teeth engage with the matching belt better than standard trapezoidal teeth, so these pulleys transmit about twice the torque. All are compatible with Gates PowerGrip HTD, Omega HP, and Carlisle RPP series.
    Iron—Strong but best for dry environments since moisture will cause them to rust.
    Corrosion-Resistant Stainless Steel—Stands up to wet environments and mild chemicals, such as the ammonia in cleaning solutions.
    Bushing Bore—Quickly swap or service parts in tight spaces—no press-fitting or special tools required. Mount a bushing (sold separately) on your shaft and slide the pulley over it. As you tighten the included set screws, the bushing grips the shaft and draws it into the pulley, creating a final hold that is more secure than with set screws alone.
    For
    Bushing
    For Max.
    Belt Wd., mm
    Pitch,
    mm
    No. of
    Teeth
    Bore
    Type
    Type
    Trade
    No.
    Pitch Dia.,
    mm
    No. of
    Flanges
    Each
    For H8M Trade Size
     
    Iron
    20844BushingQuick Disconnect (QD)SDS112200000000000000
    30844BushingQuick Disconnect (QD)SDS11220000000000000
     
    Corrosion-Resistant Stainless Steel
    20844BushingQuick Disconnect (QD)SDS11220000000000000
    30844BushingQuick Disconnect (QD)SDS11220000000000000
     
    Bushings
    Image of Product. Front orientation. Pulley and Sprocket Bushings. Quick-Disconnect Bushing.

    Quick-Disconnect

    Bushing

    Bushing
    Type
    Trade
    No.
    For Shaft
    Dia.
    Each
    Quick Disconnect (QD)SDS1/2"00000000000000
    Quick Disconnect (QD)SDS9/16"0000000000000
    Quick Disconnect (QD)SDS5/8"0000000000000
    Quick Disconnect (QD)SDS3/4"0000000000000
    Quick Disconnect (QD)SDS7/8"0000000000000
    Quick Disconnect (QD)SDS15/16"0000000000000
    Quick Disconnect (QD)SDS1"0000000000000
    Quick Disconnect (QD)SDS1 1/16"0000000000000
    Quick Disconnect (QD)SDS1 1/8"0000000000000
    Quick Disconnect (QD)SDS1 3/16"0000000000000
    Quick Disconnect (QD)SDS1 1/4"0000000000000
    Quick Disconnect (QD)SDS1 5/16"0000000000000
    Quick Disconnect (QD)SDS1 3/8"0000000000000
    Quick Disconnect (QD)SDS1 7/16"0000000000000
    Quick Disconnect (QD)SDS1 1/2"0000000000000
    Quick Disconnect (QD)SDS1 9/16"0000000000000
    Quick Disconnect (QD)SDS1 5/8"0000000000000
    Quick Disconnect (QD)SDS1 11/16"0000000000000
    Quick Disconnect (QD)SDS1 3/4"0000000000000
    Quick Disconnect (QD)SDS1 7/8"0000000000000
    Quick Disconnect (QD)SDS1 15/16"0000000000000
    Quick Disconnect (QD)SDS2"0000000000000
    Quick Disconnect (QD)SDS24 mm000000000000
    Quick Disconnect (QD)SDS25 mm000000000000
    Quick Disconnect (QD)SDS28 mm000000000000
    Quick Disconnect (QD)SDS30 mm000000000000
    Quick Disconnect (QD)SDS32 mm000000000000
    Quick Disconnect (QD)SDS35 mm000000000000
    Quick Disconnect (QD)SDS38 mm000000000000
    Quick Disconnect (QD)SDS40 mm000000000000
    Quick Disconnect (QD)SDS42 mm000000000000

    High-Power Metal Helical Gears

    The helical teeth on these gears stay in contact longer than straight teeth, which allows them to transmit higher loads at higher speeds than spur gears.
    Parallel Gears
    Image of Product. Front orientation. Helical Gears. High-Power Metal Helical Gears, Parallel Gears.
    Pair two parallel gears to transmit motion in a straight line or a gear with a rack to convert rotary motion to linear motion. Make sure mating components have different tooth directions.
    For gears to mesh correctly, they must have the same pressure angle and pitch/module. To change speed and torque in your assembly, pair two gears with different numbers of teeth.
    Hub,
    mm
    Left-Hand Teeth
    Right-Hand Teeth
    Gear
    Module
    No. of
    Teeth
    Helix
    Angle
    Gear Pitch
    Dia., mm
    OD,
    mm
    Face Wd.,
    mm
    Dia.
    Wd.
    Bore Type
    For Shaft
    Dia., mm
    Material
    Tooth Heat
    Treatment
    Each
    Each
    20° Pressure Angle
    1
    		4421 1/2°444683010Round Bore104140 Alloy SteelHardened000000000000000000000000000000
     
    Parallel Gear Racks
    Image of System. Parallel Gear on Gear Rack (Sold Separately). Front orientation. Helical Gear Racks.
    Image of Product. Front orientation. Helical Gear Racks.

    Parallel Gear on

    Gear Rack (Sold

    Separately)

    Pair these racks with parallel helical gears that have an opposite tooth direction to convert rotary motion to linear motion.
    Left-Hand Teeth
    Right-Hand Teeth
    Gear
    Module
    Lg.,
    mm
    Helix
    Angle
    Pitch Ht.,
    mm
    Ht.,
    mm
    Face Wd.,
    mm
    Material
    Tooth Heat
    Treatment
    Each
    Each
    20° Pressure Angle
    1
    		10021 1/2°141584140 Alloy SteelNot Hardened000000000000000000000000000000
    1
    		50021 1/2°141584140 Alloy SteelNot Hardened0000000000000000000000000000
     

    Precision High-Torque GT Timing Belt Pulleys

    Image of Product. Front orientation. Timing Belt Drive Pulleys. Precision High-Torque GT Timing Belt Pulleys, Finished Bore.

    Finished Bore

    Image of Attribute. Front orientation. Contains Annotated, Border. Modified Curved (GT) Teeth.
    When precise synchronization is crucial, these pulleys minimize play (backlash). They’re often found in 3D printers, where accurate positioning is essential. Their curved teeth fit snugly with matching belts. Compared to pulleys with standard trapezoidal teeth, these pulleys transmit about three times more torque and run at higher speeds. All are compatible with Gates PowerGrip GT, 2GT, GT2, GT3, and GT4 series.
    Corrosion-Resistant Aluminum—Won't rust in wet environments and one-third the weight of steel and iron. However, aluminum pulleys are not as strong as iron and steel.
    Finished Bore—Mount these pulleys onto the shaft and secure with a set screw—no machining required.
    For Max.
    Belt Wd., mm
    Pitch,
    mm
    No. of
    Teeth
    Bore
    Type
    For Shaft
    Dia.
    Pitch Dia.,
    mm
    No. of
    Flanges
    Hub
    Type
    Each
    For 3MGT Trade Size
     
    Corrosion-Resistant Aluminum
    9344Finished1/4"422Standard0000000000000
     

    Timing Belt Pulleys

    Image of Product. Front orientation. Timing Belt Drive Pulleys. Timing Belt Pulleys, Finished Bore.

    Finished Bore

    Image of Attribute. Front orientation. Contains Annotated, Border. Timing Belt Pulleys.
    Keep your drive system in sync. Trapezoidal teeth mesh with matching belts to synchronize motion. With the original tooth profile, these pulleys handle enough torque for most applications. If you need high torque or precise starts and stops, consider curved tooth profiles, such as GT and HTD pulleys.
    Steel—Strong but best for dry environments since moisture will cause them to rust.
    Corrosion-Resistant Aluminum—Won't rust in wet environments and one-third the weight of steel and iron. However, aluminum pulleys are not as strong as iron and steel.
    Finished Bore—Mount these pulleys onto the shaft and secure with a set screw—no machining required.
    For Max.
    Belt Wd.
    Pitch
    No. of
    Teeth
    Bore
    Type
    For Shaft
    Dia.
    Pitch
    Dia.
    No. of
    Flanges
    Hub
    Type
    Each
    For MXL Trade Size
     
    Corrosion-Resistant Aluminum
    3 mm0.080"44Finished6 mm28.5 mm2Standard00000000000000
     
    For XL Trade Size
     
    Steel
    3/8"0.200"44Finished5/16"2.801"—Standard0000000000000
     
    Corrosion-Resistant Aluminum
    3/8"0.200"44Finished5/16"2.801"—Standard000000000000
     

    Metal Spur Gears

    Our strongest spur gears for transferring motion. They’re better than plastic gears for high-load, high-speed, and heavy duty applications. Combine a gear and rack to convert rotary motion into linear motion. To minimize your footprint, mount one or more standard gears inside of an internal gear.
    Combine gears with different numbers of teeth to change speed and torque in your assembly. For components to mesh correctly, they must have the same pressure angle and pitch/module.
    Gears
    Image of Product. Front orientation. Spur Gears. Metal Spur Gears, 20° Pressure Angle, Round Bore.

    20° Pressure Angle

    Round Bore

    20° Pressure Angle—The current industry standard, these 20° pressure angle spur gears have thicker, stronger teeth than 14½° pressure angle gears.
    Steel—Steel gears have hard, strong, and wear-resistant teeth, although they will rust when exposed to moisture and corrosive chemicals.
    Hub,
    mm
    Gear
    Module
    No. of
    Teeth
    Gear Pitch
    Dia., mm
    OD,
    mm
    Face Wd.,
    mm
    Dia.
    Wd.
    Bore Type
    For Shaft
    Dia., mm
    Tooth Heat
    Treatment
    Material
    Each
    20° Pressure Angle
     
    Steel
    2
    		448892205510Round Bore15Not HardenedBlack-Oxide 1045 Carbon Steel00000000000000
     
    Gear Racks
    Image of Product. Front orientation. Spur Gear Racks. Metal Spur Gears, 20° Pressure Angle—Rectangular.
    Image of Product. Front orientation. Spur Gear Racks. Metal Spur Gears, 20° Pressure Angle—Round.

    20° Pressure Angle—Rectangular

    20° Pressure Angle—Round

    These racks match with spur gears to convert rotary motion to linear motion. For components to mesh correctly, they must have the same pressure angle and pitch/module.
    Steel—Steel gear racks have strong and wear-resistant teeth, although they will rust when exposed to moisture and corrosive chemicals.
    Gear
    Module
    Lg.,
    mm
    Pitch Ht.,
    mm
    Ht.,
    mm
    Face Wd.,
    mm
    Dia.,
    mm
    Tooth Heat
    Treatment
    Material
    Features
    Each
    20° Pressure Angle—Rectangular
     
    Steel
    2
    		100232520—Not HardenedBlack-Oxide 1045 Carbon Steel—00000000000000
    2
    		300232520—Not HardenedBlack-Oxide 1045 Carbon Steel—0000000000000
    2
    		50017.819.820—Not Hardened1045 Carbon Steel—00000000000000
    2
    		1,00017.819.820—Not Hardened1045 Carbon Steel—00000000000000
    2
    		1,000182020—Not HardenedBlack-Oxide 1045 Carbon SteelMachined Ends00000000000000
     
    20° Pressure Angle—Round
     
    Steel
    2
    		1,00018——20Not HardenedBlack-Oxide 1045 Carbon Steel—00000000000000
     
    Internal Gears
    Image of Product. Front orientation. Internal Spur Gears. Metal Spur Gears.
    Save space without losing power. Insert a standard spur gear inside one of these gears for a compact assembly that smoothly transmits motion. Combine gears with different numbers of teeth to change speed and torque in your assembly. For components to mesh correctly, they must have the same pressure angle and pitch/module.
    Steel—Steel gears have strong and wear-resistant teeth, although they will rust when exposed to moisture and corrosive chemicals.
    Gear
    Module
    No. of
    Teeth
    Gear Pitch
    Dia., mm
    OD,
    mm
    ID,
    mm
    Face Wd.,
    mm
    Tooth Heat
    Treatment
    Finished Material
    Each
    20° Pressure Angle
     
    Steel
    2
    		10020025019620Not HardenedBlack-Oxide 1045 Carbon Steel00000000000000
     

    Plastic Timing Belt Pulleys

    Image of Product. Front orientation. Timing Belt Drive Pulleys. Plastic Timing Belt Pulleys.
    Image of Attribute. Front orientation. Contains Annotated, Border. Trapezoidal Teeth.
    Naturally rust resistant and lightweight, these plastic pulleys are ideal for machines that require frequent washdowns. Trapezoidal teeth, the original tooth profile, mesh with matching belts to transmit power without slipping.
    Finished Bore—Mount these pulleys onto the shaft and secure with a set screw—no machining required.
    For Max.
    Belt Wd.
    Pitch
    No. of
    Teeth
    Bore
    Type
    For Shaft
    Dia.
    Pitch
    Dia.
    No. of
    Flanges
    Hub
    Type
    Each
    For XL Trade Size
     
    Acetal
    3/8"0.200"44Finished5/16"2.801"2Standard00000000000000
    3/8"0.200"44Finished10 mm2.8"2Standard000000000000
     
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