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    18 Products

    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/Plain Bore.
    Image of Product. Gear with Round or Round/Machinable Bore. Back orientation. Spur Gears. Metal Spur Gears, 14 1/2° Pressure Angle, Round/Plain Bore.

    20° Pressure Angle

    Round/Plain Bore

    Gear with Round

    or

    Round/Machinable

    Bore

    20° Pressure Angle—The current industry standard, these 20° pressure angle spur gears have thicker, stronger teeth than 14½° pressure angle gears.
    14 1/2° Pressure Angle—A former industry standard, 14½° pressure angle gears are often found in older machinery.
    Steel—Steel gears have hard, strong, and wear-resistant teeth, although they will rust when exposed to moisture and corrosive chemicals.
    Plain Bore—Gears with a plain bore have a large hub diameter so you can machine them to fit your shaft.
    Hardened—Gears with hardened teeth have better wear resistance than gears with teeth that are not hardened.
    Hub
    Gear
    Pitch
    No. of
    Teeth
    Gear Pitch
    Dia.
    OD
    Face
    Wd.
    Dia.
    Wd.
    Bore Type
    For Shaft Dia.
    Tooth Heat
    Treatment
    Material
    Each
    20° Pressure Angle
     
    Steel
    8
    		202 1/2"2.75"1 1/2"2.063"0.875"Round/Plain Bore7/8" to 1 5/16"Hardened1144 Carbon Steel00000000000000
     
    14 1/2° Pressure Angle
     
    Steel
    10
    		404"4.2"1"2.25"0.875"Round/Plain Bore7/8" to 1 5/16"Not Hardened1144 Carbon Steel0000000000000
    8
    		202 1/2"2.75"1 1/4"2.125"0.75"Round/Plain Bore7/8" to 1 5/16"Not Hardened1144 Carbon Steel0000000000000
     
    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, 14 1/2° Pressure Angle—Rectangular.

    20° Pressure Angle—Rectangular

    14 1/2° Pressure

    Angle—Rectangular

    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
    Pitch
    Lg.,
    ft.
    Pitch
    Ht.
    Ht.
    Face
    Wd.
    Tooth Heat
    Treatment
    Material
    Each
    20° Pressure Angle—Rectangular
     
    Steel
    8
    		21.375"1 1/2"1 1/2"Not Hardened1018 Low-Carbon Steel0000000000000
    8
    		41.375"1 1/2"1 1/2"Not Hardened1215 Carbon Steel0000000000000
    8
    		61.375"1 1/2"1 1/2"Not Hardened1215 Carbon Steel0000000000000
     
    14 1/2° Pressure Angle—Rectangular
     
    Steel
    10
    		20.525"5/8"1"Not Hardened1018 Low-Carbon Steel000000000000
    10
    		20.9"1"1"Not Hardened1018 Low-Carbon Steel000000000000
    10
    		40.525"5/8"1"Not Hardened1215 Carbon Steel0000000000000
    10
    		40.9"1"1"Not Hardened1215 Carbon Steel00000000000000
    10
    		60.525"5/8"1"Not Hardened1215 Carbon Steel00000000000000
    10
    		60.9"1"1"Not Hardened1215 Carbon Steel00000000000000
    8
    		20.625"3/4"1 1/4"Not Hardened1018 Low-Carbon Steel000000000000
    8
    		21.125"1 1/4"1 1/4"Not Hardened1215 Carbon Steel000000000000
    8
    		40.625"3/4"1 1/4"Not Hardened1215 Carbon Steel00000000000000
    8
    		41.125"1 1/4"1 1/4"Not Hardened1215 Carbon Steel00000000000000
    8
    		60.625"3/4"1 1/4"Not Hardened1215 Carbon Steel00000000000000
    8
    		61.125"1 1/4"1 1/4"Not Hardened1215 Carbon Steel00000000000000
     
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