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    328 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
    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.
    Stainless Steel—Stainless steel gears resist rust in damp and wet environments, so they're commonly used in food-processing plants and other areas with frequent cleaning.
    Brass—Brass gears are easy to machine, so you can add your own mounting holes and make other alterations. They won't rust when exposed to water.
    Plain Bore—Gears with a plain bore have a large hub diameter so you can machine them to fit your shaft.
    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
    Image of Product. Front orientation. Spur Gears. Metal Spur Gears, 20° Pressure Angle, Round Bore.

    Round Bore

    Image of Product. Gear with Round Bore and Set Screw. Back orientation. Spur Gears. Metal Spur Gears, 20° Pressure Angle, Round Bore with Set Screw.

    Gear with Round

    Bore and Set Screw

     
    Steel
    20
    153/4"0.85"1/2"0.6"0.44"Round Bore3/8"Not Hardened1117 Carbon Steel5172T11000000
    20
    201"1.1"1/2"0.84"0.44"Round Bore1/2"Not Hardened1117 Carbon Steel5172T1200000
    20
    251 1/4"1.35"1/2"0.97"0.44"Round Bore1/2"Not Hardened1117 Carbon Steel5172T1300000
    20
    301 1/2"1.6"1/2"1.22"0.44"Round Bore1/2"Not Hardened1117 Carbon Steel5172T1400000
    20
    351 3/4"1.85"1/2"1.47"0.5"Round Bore1/2"Not Hardened1117 Carbon Steel5172T1500000
    20
    402"2.1"1/2"1.72"0.5"Round Bore1/2"Not Hardened1117 Carbon Steel5172T1600000
    16
    161"1.13"3/4"0.81"0.5"Round Bore1/2"Not Hardened1117 Carbon Steel5172T2100000
    16
    241 1/2"1.63"3/4"1.2"0.5"Round Bore5/8"Not Hardened1117 Carbon Steel5172T2200000
    16
    322"2.13"3/4"1.7"0.5"Round Bore3/4"Not Hardened1117 Carbon Steel5172T2300000
    16
    483"3.13"3/4"2"0.62"Round Bore5/8"Not Hardened1117 Carbon Steel5172T24000000
    16
    805"5.13"3/4"3.88"0.75"Round Bore3/4"Not Hardened1117 Carbon Steel5172T25000000
    12
    121"1.17"1"0.75"0.62"Round Bore1/2"Not Hardened1117 Carbon Steel5172T3100000
    12
    151 1/4"1.42"1"0.99"0.62"Round Bore5/8"Not Hardened1117 Carbon Steel5172T3200000
    12
    211 3/4"1.92"1"1.4"0.62"Round Bore3/4"Not Hardened1117 Carbon Steel5172T3300000
    12
    242"2.17"1"1.65"0.62"Round Bore7/8"Not Hardened1117 Carbon Steel5172T3400000
    12
    363"3.17"1"1.94"0.88"Round Bore3/4"Not Hardened1117 Carbon Steel5172T35000000
    12
    484"4.17"1"2.88"0.88"Round Bore7/8"Not Hardened1117 Carbon Steel5172T36000000
    8
    121 1/2"1.75"1 1/2"1.12"0.75"Round Bore3/4"Not Hardened1117 Carbon Steel5172T4100000
    8
    162"2.25"1 1/2"1.56"0.88"Round Bore7/8"Not Hardened1117 Carbon Steel5172T42000000
    8
    202 1/2"2.75"1 1/2"2.07"0.87"Round Bore1"Not Hardened1117 Carbon Steel5172T43000000
    8
    243"3.25"1 1/2"2.56"0.88"Round Bore1"Not Hardened1117 Carbon Steel5172T44000000
    8
    283 1/2"3.75"1 1/2"3.06"0.88"Round Bore7/8"Not Hardened1117 Carbon Steel5172T45000000
     
    Stainless Steel
    64
    360.563"0.59"3/16"0.5"0.25"Round Bore with Set Screw1/4"Not Hardened303 Stainless Steel6832K3600000
    64
    483/4"0.78"3/16"0.5"0.25"Round Bore with Set Screw1/4"Not Hardened303 Stainless Steel6832K3700000
    48
    305/8"0.67"3/16"0.5"0.25"Round Bore with Set Screw1/4"Not Hardened303 Stainless Steel6832K4300000
    48
    363/4"0.79"3/16"0.5"0.25"Round Bore with Set Screw1/4"Not Hardened303 Stainless Steel6832K4400000
    48
    481"1.04"3/16"0.5"0.25"Round Bore with Set Screw1/4"Not Hardened303 Stainless Steel6832K4500000
    32
    205/8"0.69"3/16"0.5"0.25"Round Bore with Set Screw1/4"Not Hardened303 Stainless Steel6832K5200000
    32
    243/4"0.81"3/16"0.5"0.25"Round Bore with Set Screw1/4"Not Hardened303 Stainless Steel6832K5300000
    32
    321"1.06"3/16"0.5"0.25"Round Bore with Set Screw1/4"Not Hardened303 Stainless Steel6832K5400000
    32
    361 1/8"1.19"3/16"0.5"0.25"Round Bore with Set Screw1/4"Not Hardened303 Stainless Steel6832K5500000
    32
    481 1/2"1.56"3/16"0.5"0.25"Round Bore with Set Screw1/4"Not Hardened303 Stainless Steel6832K5600000
    32
    642"2.06"3/16"0.5"0.25"Round Bore with Set Screw1/4"Not Hardened303 Stainless Steel6832K5700000
    32
    722 1/4"2.31"3/16"0.5"0.25"Round Bore with Set Screw1/4"Not Hardened303 Stainless Steel6832K5800000
    24
    155/8"0.71"3/16"0.5"0.25"Round Bore with Set Screw1/4"Not Hardened303 Stainless Steel6832K5900000
    24
    183/4"0.83"3/16"0.5"0.25"Round Bore with Set Screw1/4"Not Hardened303 Stainless Steel6832K6100000
    24
    241"1.08"3/16"0.5"0.25"Round Bore with Set Screw1/4"Not Hardened303 Stainless Steel6832K6200000
    24
    361 1/2"1.58"3/16"0.5"0.25"Round Bore with Set Screw1/4"Not Hardened303 Stainless Steel6832K6400000
    24
    482"2.08"3/16"0.5"0.25"Round Bore with Set Screw1/4"Not Hardened303 Stainless Steel6832K6500000
    24
    602 1/2"2.58"3/16"0.5"0.25"Round Bore with Set Screw1/4"Not Hardened303 Stainless Steel6832K6600000
     
    Brass
    64
    161/4"0.28"1/8"0.19"0.19"Round Bore1/8"Brass7880K1100000
    64
    243/8"0.41"1/8"0.28"0.19"Round Bore1/8"Brass7880K1300000
    64
    280.438"0.47"1/8"0.34"0.19"Round Bore1/8"Brass7880K1400000
    48
    121/4"0.29"1/8"0.18"0.19"Round Bore1/8"Brass7880K1700000
    48
    150.312"0.35"1/8"0.22"0.19"Round Bore1/8"Brass7880K1800000
    48
    183/8"0.42"1/8"0.28"0.19"Round Bore1/8"Brass7880K1900000
    48
    241/2"0.54"1/8"0.38"0.25"Round Bore3/16"Brass7880K2100000
    48
    363/4"0.79"1/8"0.5"0.25"Round Bore3/16"Brass7880K2300000
    48
    481"1.04"1/8"0.63"0.25"Round Bore1/4"Brass7880K2400000
    32
    123/8"0.44"3/16"0.28"0.25"Round Bore1/8"Brass7880K2500000
    32
    140.438"0.5"3/16"0.34"0.25"Round Bore1/8"Brass7880K2600000
    32
    161/2"0.56"3/16"0.4"0.25"Round Bore3/16"Brass7880K2700000
    32
    205/8"0.69"3/16"0.47"0.25"Round Bore3/16"Brass7880K2900000
    32
    243/4"0.81"3/16"0.53"0.25"Round Bore3/16"Brass7880K3100000
    32
    287/8"0.94"3/16"0.59"0.25"Round Bore3/16"Brass7880K3200000
    32
    361 1/8"1.19"3/16"0.72"0.25"Round Bore1/4"Brass7880K3400000
    32
    401 1/4"1.31"3/16"0.72"0.25"Round Bore1/4"Brass7880K3500000
    32
    481 1/2"1.56"3/16"0.78"0.25"Round Bore1/4"Brass7880K3600000
    24
    121/2"0.58"1/4"0.38"0.25"Round Bore3/16"Brass7880K3700000
    24
    155/8"0.71"1/4"0.5"0.25"Round Bore3/16"Brass7880K3800000
    24
    183/4"0.83"1/4"0.54"0.25"Round Bore3/16"Brass7880K3900000
    24
    217/8"0.96"1/4"0.6"0.25"Round Bore3/16"Brass7880K4100000
    24
    361 1/2"1.58"1/4"0.79"0.25"Round Bore1/4"Brass7880K4400000
    24
    482"2.08"1/4"0.92"0.31"Round Bore5/16"Brass7880K4500000
     
    14 1/2° Pressure Angle
    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.

    Gear with Round

    or

    Round/Machinable

    Bore

    Image of Product. Gear with Round Bore and Set Screw. Back orientation. Spur Gears. Metal Spur Gears, 14 1/2° Pressure Angle, Round Bore with Set Screw.

    Gear with Round

    Bore and Set Screw

     
    Steel
    32
    161/2"0.56"3/16"0.406"0.313"Round Bore with Set Screw3/16"Not Hardened1117 Carbon Steel6325K8900000
    32
    180.563"0.63"3/16"0.406"0.313"Round Bore3/16"Not Hardened1117 Carbon Steel6325K9400000
    32
    205/8"0.69"3/16"0.531"0.313"Round Bore1/4"Not Hardened1117 Carbon Steel6325K9500000
    32
    243/4"0.81"3/16"0.656"0.313"Round Bore5/16"Not Hardened1144 Carbon Steel6325K9600000
    32
    401 1/4"1.31"3/16"0.875"0.375"Round Bore3/8"Not Hardened1144 Carbon Steel6325K9700000
    24
    121/2"0.58"1/4"0.375"0.313"Round Bore1/4"Not Hardened1144 Carbon Steel6325K3100000
    24
    155/8"0.71"1/4"0.5"0.313"Round Bore1/4"Not Hardened1144 Carbon Steel6325K6300000
    24
    160.666"0.75"1/4"0.547"0.313"Round Bore5/16"Not Hardened1144 Carbon Steel6325K7500000
    24
    200.833"0.92"1/4"0.719"0.313"Round Bore5/16"Not Hardened1144 Carbon Steel6325K8700000
    24
    217/8"0.96"1/4"0.75"0.313"Round Bore3/8"Not Hardened1144 Carbon Steel6325K6400000
    24
    241"1.08"1/4"0.875"0.375"Round Bore3/8"Not Hardened1144 Carbon Steel6325K8800000
    24
    361 1/2"1.58"1/4"1.125"0.375"Round/Plain Bore3/8" to 5/8"Not Hardened1144 Carbon Steel6325K6500000
    24
    482"2.08"1/4"1.25"0.375"Round/Plain Bore3/8" to 11/16"Not Hardened1144 Carbon Steel6325K6600000
    24
    723"3.08"1/4"1.375"0.5"Round/Plain Bore1/2" to 13/16"Not Hardened1144 Carbon Steel6325K6700000
    20
    120.6"0.7"3/8"0.469"0.375"Round Bore5/16"Not Hardened1144 Carbon Steel6325K8100000
    20
    153/4"0.85"3/8"0.609"0.375"Round Bore3/8"Not Hardened1144 Carbon Steel6325K6800000
    20
    160.8"0.9"3/8"0.656"0.375"Round Bore3/8"Not Hardened1144 Carbon Steel6325K8200000
    20
    201"1.1"3/8"0.859"0.375"Round Bore3/8"Not Hardened1144 Carbon Steel6325K8300000
    20
    231.15"1.25"3/8"0.969"0.375"Round Bore3/8"Not Hardened1144 Carbon Steel6325K6900000
    20
    241.2"1.3"3/8"1.063"0.375"Round/Plain Bore3/8" to 9/16"Not Hardened1144 Carbon Steel6325K8400000
    20
    251 1/4"1.35"3/8"1.109"0.375"Round/Plain Bore3/8" to 5/8"Not Hardened1144 Carbon Steel6325K7100000
    20
    321.6"1.7"3/8"1.438"0.5"Round/Plain Bore3/8" to 7/8"Not Hardened1144 Carbon Steel6325K8500000
    20
    361.8"1.9"3/8"1.625"0.5"Round/Plain Bore3/8" to 15/16"Not Hardened1144 Carbon Steel6325K7200000
    20
    482.4"2.5"3/8"2"0.5"Round/Plain Bore3/8" to 1 1/4"Not Hardened1144 Carbon Steel6325K8600000
    20
    603"3.1"3/8"2"0.5"Round/Plain Bore3/8" to 1 1/4"Not Hardened1144 Carbon Steel6325K7300000
    16
    123/4"0.88"1/2"0.563"0.438"Round Bore3/8"Not Hardened1144 Carbon Steel6325K1100000
    16
    147/8"1"1/2"0.688"0.438"Round Bore3/8"Not Hardened1144 Carbon Steel6325K1200000
    16
    161"1.13"1/2"0.812"0.438"Round Bore1/2"Not Hardened1144 Carbon Steel6325K1300000
    16
    181 1/8"1.25"1/2"0.938"0.438"Round Bore1/2"Not Hardened1144 Carbon Steel6325K1400000
    16
    201 1/4"1.38"1/2"1.063"0.438"Round/Plain Bore1/2" to 9/16"Not Hardened1144 Carbon Steel6325K1500000
    16
    221 3/8"1.5"1/2"1.188"0.438"Round/Plain Bore1/2" to 5/8"Not Hardened1144 Carbon Steel6325K7400000
    16
    241 1/2"1.63"1/2"1.313"0.438"Round/Plain Bore1/2" to 3/4"Not Hardened1144 Carbon Steel6325K1600000
    16
    281 3/4"1.88"1/2"1.5"0.5"Round/Plain Bore1/2" to 7/8"Not Hardened1144 Carbon Steel6325K7600000
    16
    301 7/8"2"1/2"1.625"0.5"Round/Plain Bore1/2" to 15/16"Not Hardened1144 Carbon Steel6325K1700000
    16
    322"2.13"1/2"1.75"0.5"Round/Plain Bore1/2" to 1"Not Hardened1144 Carbon Steel6325K1800000
    16
    362 1/4"2.38"1/2"2"0.5"Round/Plain Bore1/2" to 1 1/4"Not Hardened1144 Carbon Steel6325K7700000
    16
    402 1/2"2.63"1/2"2"0.5"Round/Plain Bore1/2" to 1 1/4"Not Hardened1144 Carbon Steel6325K1900000
    16
    483"3.13"1/2"2"0.5"Round/Plain Bore1/2" to 1 1/4"Not Hardened1144 Carbon Steel6325K2100000
    16
    603 3/4"3.88"1/2"2"0.5"Round/Plain Bore1/2" to 1 1/4"Not Hardened1144 Carbon Steel6325K7800000
    12
    121"1.17"3/4"0.75"0.5"Round Bore1/2"Not Hardened1144 Carbon Steel6325K2200000
    12
    141.167"1.33"3/4"0.906"0.5"Round Bore1/2"Not Hardened1144 Carbon Steel6325K2300000
    12
    151 1/4"1.42"3/4"1"0.5"Round Bore5/8"Not Hardened1144 Carbon Steel6325K7900000
    12
    161.333"1.5"3/4"1.063"0.5"Round Bore5/8"Not Hardened1144 Carbon Steel6325K2400000
    12
    181 1/2"1.67"3/4"1.25"0.5"Round/Plain Bore5/8" to 11/16"Not Hardened1144 Carbon Steel6325K2500000
    12
    201.667"1.83"3/4"1.406"0.5"Round/Plain Bore5/8" to 13/16"Not Hardened1144 Carbon Steel6325K2600000
    12
    242"2.17"3/4"1.75"0.5"Round/Plain Bore5/8" to 1"Not Hardened1144 Carbon Steel6325K2700000
    12
    302 1/2"2.67"3/4"2.25"0.625"Round/Plain Bore5/8" to 1 5/16"Not Hardened1144 Carbon Steel6325K2800000
    12
    322.667"2.83"3/4"2.25"0.625"Round/Plain Bore5/8" to 1 5/16"Not Hardened1144 Carbon Steel6325K2900000
    12
    363"3.17"3/4"2.5"0.625"Round/Plain Bore5/8" to 1 1/2"Not Hardened1144 Carbon Steel6325K100000
    12
    403.333"3.5"3/4"2.5"0.625"Round/Plain Bore5/8" to 1 1/2"Not Hardened1144 Carbon Steel6325K200000
    12
    423 1/2"3.67"3/4"2.5"0.625"Round/Plain Bore5/8" to 1 1/2"Not Hardened1144 Carbon Steel6325K300000
    12
    484"4.17"3/4"2.5"0.75"Round/Plain Bore5/8" to 1 1/2"Not Hardened1144 Carbon Steel6325K32000000
    12
    605"5.17"3/4"2.75"0.75"Round/Plain Bore3/4" to 1 3/4"Not Hardened1144 Carbon Steel6325K4000000
    10
    121.2"1.4"1"0.938"0.625"Round Bore5/8"Not Hardened1144 Carbon Steel6325K3300000
    10
    141.4"1.6"1"1.125"0.625"Round Bore5/8"Not Hardened1144 Carbon Steel6325K3400000
    10
    151 1/2"1.7"1"1.219"0.625"Round Bore3/4"Not Hardened1144 Carbon Steel6325K500000
    10
    161.6"1.8"1"1.313"0.625"Round Bore3/4"Not Hardened1144 Carbon Steel6325K3500000
    10
    181.8"2"1"1.531"0.625"Round/Plain Bore3/4" to 7/8"Not Hardened1144 Carbon Steel6325K3600000
    10
    202"2.2"1"1.719"0.625"Round/Plain Bore3/4" to 1"Not Hardened1144 Carbon Steel6325K3700000
    10
    242.4"2.6"1"2.125"0.625"Round/Plain Bore3/4" to 1 1/4"Not Hardened1144 Carbon Steel6325K3800000
    10
    252 1/2"2.7"1"2.219"0.625"Round/Plain Bore3/4" to 1 1/2"Not Hardened1144 Carbon Steel6325K600000
    10
    282.8"3"1"2.125"0.875"Round/Plain Bore3/4" to 1 1/4"Not Hardened1144 Carbon Steel6325K700000
    10
    303"3.2"1"2.125"0.875"Round/Plain Bore3/4" to 1 1/4"Not Hardened1144 Carbon Steel6325K39000000
    10
    353 1/2"3.7"1"2.25"0.875"Round/Plain Bore3/4" to 1 5/16"Not Hardened1144 Carbon Steel6325K800000
    10
    404"4.2"1"2.25"0.875"Round/Plain Bore7/8" to 1 5/16"Not Hardened1144 Carbon Steel6325K42000000
    10
    484.8"5"1"2.5"0.875"Round/Plain Bore7/8" to 1 1/2"Not Hardened1144 Carbon Steel6325K43000000
    10
    606"6.2"1"2.5"0.875"Round/Plain Bore7/8" to 1 1/2"Not Hardened1144 Carbon Steel6325K9000000
    8
    121 1/2"1.75"1 1/4"1.125"0.75"Round Bore3/4"Not Hardened1144 Carbon Steel6325K4400000
    8
    141 3/4"2"1 1/4"1.375"0.75"Round/Plain Bore3/4" to 13/16"Not Hardened1144 Carbon Steel6325K4500000
    8
    162"2.25"1 1/4"1.625"0.75"Round/Plain Bore7/8" to 15/16"Not Hardened1144 Carbon Steel6325K4600000
    8
    172 1/8"2.38"1 1/4"1.75"0.75"Round/Plain Bore7/8" to 1"Not Hardened1144 Carbon Steel6325K4100000
    8
    182 1/4"2.5"1 1/4"1.875"0.75"Round/Plain Bore7/8" to 1 1/8"Not Hardened1144 Carbon Steel6325K4700000
    8
    202 1/2"2.75"1 1/4"2.125"0.75"Round/Plain Bore7/8" to 1 5/16"Not Hardened1144 Carbon Steel6325K48000000
    8
    222 3/4"3"1 1/4"2.375"0.75"Round/Plain Bore7/8" to 1 5/8"Not Hardened1144 Carbon Steel6325K5100000
    8
    243"3.25"1 1/4"2.625"1"Round/Plain Bore7/8" to 1 5/8"Not Hardened1144 Carbon Steel6325K49000000
    8
    283 1/2"3.75"1 1/4"2.625"1"Round/Plain Bore7/8" to 1 5/8"Not Hardened1144 Carbon Steel6325K53000000
    8
    324"4.25"1 1/4"2.875"1"Round/Plain Bore1" to 1 13/16"Not Hardened1144 Carbon Steel6325K52000000
    8
    364 1/2"4.75"1 1/4"3"1"Round/Plain Bore1" to 1 7/8"Not Hardened1144 Carbon Steel6325K54000000
    8
    405"5.25"1 1/4"3"1"Round/Plain Bore1" to 1 7/8"Not Hardened1144 Carbon Steel6325K59000000
    6
    122"2.33"1 1/2"1.5"0.875"Round Bore1"Not Hardened1144 Carbon Steel6325K5500000
    6
    142.333"2.67"1 1/2"1.812"0.875"Round/Plain Bore1" to 1 1/16"Not Hardened1144 Carbon Steel6325K5600000
    6
    152 1/2"2.83"1 1/2"2"0.875"Round/Plain Bore1" to 1 1/4"Not Hardened1144 Carbon Steel6325K92000000
    6
    162.666"3"1 1/2"2.156"0.875"Round/Plain Bore1" to 1 5/16"Not Hardened1144 Carbon Steel6325K57000000
    6
    183"3.33"1 1/2"2.5"0.875"Round/Plain Bore1" to 1 1/2"Not Hardened1144 Carbon Steel6325K58000000
    6
    203.333"3.67"1 1/2"2.844"0.875"Round/Plain Bore1" to 1 3/4"Not Hardened1144 Carbon Steel6325K93000000
    6
    223.666"4"1 1/2"3"0.875"Round/Plain Bore1" to 1 7/8"Not Hardened1144 Carbon Steel6325K98000000
    6
    244"4.33"1 1/2"3"1"Round/Plain Bore1 1/8" to 1 7/8"Not Hardened1144 Carbon Steel6325K61000000
    6
    305"5.33"1 1/2"3.125"1"Round/Plain Bore1 1/8" to 2"Not Hardened1144 Carbon Steel6325K62000000
    6
    366"6.33"1 1/2"3.25"1"Round/Plain Bore1 1/8" to 2 1/8"Not Hardened1144 Carbon Steel6325K122000000
    6
    488"8.33"1 1/2"4.125"1"Round/Plain Bore1 1/8" to 2 1/2"Not Hardened1040 Carbon Steel6325K123000000
     
    Gear Racks
    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.
    Stainless Steel—Stainless steel gear racks resist rust in damp and wet environments, so they're commonly used in food-processing plants and other areas with frequent cleaning.
    Brass—Brass gear racks are easy to machine, so you can add your own mounting holes and make other alterations. They won't rust when exposed to water.
    Gear
    Pitch
    Lg.
    Pitch
    Ht.
    Ht.
    Face
    Wd.
    Tooth Heat
    Treatment
    Material
    No. of Mounting
    Holes
    Each
    20° Pressure Angle—Rectangular
    Image of Product. Front orientation. Spur Gear Racks. Metal Spur Gears, 20° Pressure Angle—Rectangular.
     
    Steel
    20
    2 ft.0.45"1/2"1/2"Not Hardened1018 Low-Carbon Steel5174T1000000
    20
    4 ft.0.45"1/2"1/2"Not Hardened1215 Carbon Steel5174T1100000
    20
    6 ft.0.45"1/2"1/2"Not Hardened1215 Carbon Steel5174T2100000
    16
    2 ft.0.687"3/4"3/4"Not Hardened1018 Low-Carbon Steel5174T200000
    16
    4 ft.0.687"3/4"3/4"Not Hardened1215 Carbon Steel5174T1200000
    16
    6 ft.0.687"3/4"3/4"Not Hardened1215 Carbon Steel5174T22000000
    12
    2 ft.0.917"1"1"Not Hardened1018 Low-Carbon Steel5174T300000
    12
    4 ft.0.917"1"1"Not Hardened1215 Carbon Steel5174T1300000
    12
    6 ft.0.917"1"1"Not Hardened1215 Carbon Steel5174T23000000
    8
    2 ft.1.375"1 1/2"1 1/2"Not Hardened1018 Low-Carbon Steel5174T4000000
    8
    4 ft.1.375"1 1/2"1 1/2"Not Hardened1215 Carbon Steel5174T14000000
    8
    6 ft.1.375"1 1/2"1 1/2"Not Hardened1215 Carbon Steel5174T24000000
     
    Stainless Steel
    64
    11"0.464"1/2"1/4"Not Hardened416 Stainless Steel6832K73000000
    48
    18"0.459"1/2"1/4"Not Hardened416 Stainless Steel6832K74000000
    32
    18"0.449"1/2"1/4"Not Hardened416 Stainless Steel6832K75000000
    24
    18"0.438"1/2"1/4"Not Hardened416 Stainless Steel6832K76000000
     
    Brass
    64
    2 ft.0.11"1/8"1/8"Brass7854K11000000
    48
    2 ft.0.104"1/8"1/8"Brass7854K12000000
    32
    2 ft.0.156"3/16"3/16"Brass7854K13000000
    24
    2 ft.0.208"1/4"1/4"Brass7854K15000000
     
    14 1/2° Pressure Angle—Rectangular
    Image of Product. Front orientation. Spur Gear Racks. Metal Spur Gears, 14 1/2° Pressure Angle—Rectangular.
     
    Steel
    32
    2 ft.0.156"3/16"3/16"Not Hardened1018 Low-Carbon Steel6295K1100000
    32
    4 ft.0.156"3/16"3/16"Not Hardened1215 Carbon Steel6295K24200000
    32
    6 ft.0.156"3/16"3/16"Not Hardened1215 Carbon Steel6295K24300000
    24
    2 ft.0.208"1/4"1/4"Not Hardened1018 Low-Carbon Steel6295K1200000
    24
    4 ft.0.208"1/4"1/4"Not Hardened1018 Low-Carbon Steel125170T1000000
    24
    4 ft.0.208"1/4"1/4"Not Hardened1215 Carbon Steel6295K23200000
    24
    6 ft.0.208"1/4"1/4"Not Hardened1215 Carbon Steel6295K23300000
    20
    2 ft.0.325"3/8"3/8"Not Hardened1018 Low-Carbon Steel6295K1300000
    20
    4 ft.0.325"3/8"3/8"Not Hardened1018 Low-Carbon Steel125170T2000000
    20
    4 ft.0.325"3/8"3/8"Not Hardened1215 Carbon Steel6295K11200000
    20
    6 ft.0.325"3/8"3/8"Not Hardened1215 Carbon Steel6295K11300000
    16
    2 ft.0.438"1/2"1/2"Not Hardened1018 Low-Carbon Steel6295K1400000
    16
    4 ft.0.437"1/2"1/2"Not Hardened1018 Low-Carbon Steel125170T3000000
    16
    4 ft.0.438"1/2"1/2"Not Hardened1215 Carbon Steel6295K12300000
    16
    6 ft.0.438"1/2"1/2"Not Hardened1215 Carbon Steel6295K12400000
    12
    2 ft.0.417"1/2"3/4"Not Hardened1018 Low-Carbon Steel6295K1500000
    12
    2 ft.0.667"3/4"3/4"Not Hardened1018 Low-Carbon Steel6295K1600000
    12
    4 ft.0.417"1/2"3/4"Not Hardened1018 Low-Carbon Steel6295K13200000
    12
    4 ft.0.667"3/4"3/4"Not Hardened1018 Low-Carbon Steel125170T4000000
    12
    4 ft.0.667"3/4"3/4"Not Hardened1215 Carbon Steel6295K14200000
    12
    6 ft.0.417"1/2"3/4"Not Hardened1018 Low-Carbon Steel6295K13300000
    12
    6 ft.0.667"3/4"3/4"Not Hardened1215 Carbon Steel6295K143000000
    10
    2 ft.0.525"5/8"1"Not Hardened1018 Low-Carbon Steel6295K1700000
    10
    2 ft.0.9"1"1"Not Hardened1018 Low-Carbon Steel6295K1800000
    10
    4 ft.0.525"5/8"1"Not Hardened1215 Carbon Steel6295K15200000
    10
    4 ft.0.9"1"1"Not Hardened1215 Carbon Steel6295K163000000
    10
    6 ft.0.525"5/8"1"Not Hardened1215 Carbon Steel6295K153000000
    10
    6 ft.0.9"1"1"Not Hardened1215 Carbon Steel6295K164000000
    8
    2 ft.0.625"3/4"1 1/4"Not Hardened1018 Low-Carbon Steel6295K1900000
    8
    2 ft.1.125"1 1/4"1 1/4"Not Hardened1215 Carbon Steel6295K2100000
    8
    4 ft.0.625"3/4"1 1/4"Not Hardened1215 Carbon Steel6295K172000000
    8
    4 ft.1.125"1 1/4"1 1/4"Not Hardened1215 Carbon Steel6295K182000000
    8
    6 ft.0.625"3/4"1 1/4"Not Hardened1215 Carbon Steel6295K173000000
    8
    6 ft.1.125"1 1/4"1 1/4"Not Hardened1215 Carbon Steel6295K183000000
    6
    2 ft.0.833"1"1 1/2"Not Hardened1018 Low-Carbon Steel6295K2200000
    6
    2 ft.1.333"1 1/2"1 1/2"Not Hardened1018 Low-Carbon Steel6295K23000000
    6
    4 ft.0.833"1"1 1/2"Not Hardened1215 Carbon Steel6295K192000000
    6
    4 ft.1.333"1 1/2"1 1/2"Not Hardened1215 Carbon Steel6295K212000000
    6
    6 ft.0.833"1"1 1/2"Not Hardened1215 Carbon Steel6295K193000000
    6
    6 ft.1.333"1 1/2"1 1/2"Not Hardened1215 Carbon Steel6295K213000000
     
    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.
    Brass—Brass gears are easy to machine, so you can add your own mounting holes and make other alterations. They won't rust when exposed to water.
    Gear
    Pitch
    No. of
    Teeth
    Gear Pitch
    Dia.
    OD
    ID
    Face
    Wd.
    Finished
    Material
    Each
    20° Pressure Angle
     
    Brass
    32
    642"2.75"1.961"3/16"Brass2696N50000000
    32
    963"3.75"2.961"3/16"Brass2696N6000000
    32
    1284"4.75"3.961"3/16"Brass2696N7000000
    24
    723"3.75"2.95"1/4"Brass2696N3000000
     

    Plastic Spur Gears

    Made of plastic, these spur gears run more quietly than metal gears and have good corrosion and chemical resistance. However, they’re not as strong as metal gears, so they’re best for light duty applications. Combine a gear and rack to convert rotary motion into linear 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.
    Gears
    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.
    Acetal—Acetal gears absorb less water than nylon gears, so they’re less likely to swell.
    Nylon—Nylon gears are wear resistant, but will swell and weaken over time when wet.
    Plain Bore—Gears with a plain bore have a large hub diameter so you can machine them to fit your shaft.
    Hub
    Keyway
    Gear
    Pitch
    Gear
    Module
    No. of
    Teeth
    Gear Pitch
    Dia.
    OD
    Face
    Wd.
    Dia.
    Wd.
    Bore Type
    For Shaft
    Dia.
    Wd.
    Dp.
    Color
    Each
    20° Pressure Angle
    Image of Product. Front orientation. Spur Gears. Plastic Spur Gears, 20° Pressure Angle.
     
    Acetal
    0.5
    126 mm7 mm3 mm4.5 mm4 mmRound Bore2 mmWhite2662N2700000
     
    Nylon
    1
    1515 mm17 mm10 mm12 mm10 mmRound Bore6 mmBlue2662N41500000
    1
    1616 mm18 mm10 mm12 mm10 mmRound Bore6 mmBlue2662N41600000
    1
    1818 mm20 mm10 mm14 mm10 mmRound Bore6 mmBlue2662N41700000
    1
    2020 mm22 mm10 mm16 mm10 mmRound Bore6 mmBlue2662N41800000
    1
    2222 mm24 mm10 mm18 mm10 mmRound Bore8 mmBlue2662N41900000
    1
    2424 mm26 mm10 mm20 mm10 mmRound Bore8 mmBlue2662N42100000
    1
    2525 mm27 mm10 mm20 mm10 mmRound Bore8 mmBlue2662N42200000
    1
    2626 mm28 mm10 mm20 mm10 mmRound Bore8 mmBlue2662N42300000
    1
    2828 mm30 mm10 mm22 mm10 mmRound Bore8 mmBlue2662N42400000
    1
    3030 mm32 mm10 mm25 mm10 mmRound Bore8 mmBlue2662N42500000
    1
    3232 mm34 mm10 mm26 mm10 mmRound Bore8 mmBlue2662N42600000
    1
    4040 mm42 mm10 mm35 mm10 mmRound Bore10 mmBlue2662N42900000
    1
    5050 mm52 mm10 mm35 mm10 mmRound Bore10 mmBlue2662N43300000
    1
    6060 mm62 mm10 mm35 mm10 mmRound Bore10 mmBlue2662N43500000
    1
    7575 mm77 mm10 mm40 mm10 mmRound Bore10 mmBlue2662N43800000
    1
    8080 mm82 mm10 mm40 mm10 mmRound Bore10 mmBlue2662N43900000
    1
    100100 mm102 mm10 mm40 mm10 mmRound Bore10 mmBlue2662N41400000
    1.5
    1522.5 mm25.5 mm15 mm18 mm10 mmRound Bore8 mmBlue2662N38500000
    1.5
    1624 mm27 mm15 mm20 mm10 mmRound Bore8 mmBlue2662N38600000
    1.5
    2030 mm33 mm15 mm24 mm10 mmRound Bore8 mmBlue2662N38800000
    1.5
    2233 mm36 mm15 mm26 mm10 mmRound Bore8 mmBlue2662N38900000
    1.5
    3045 mm48 mm15 mm38 mm10 mmRound Bore8 mmBlue2662N39500000
    1.5
    3248 mm51 mm15 mm40 mm10 mmRound Bore8 mmBlue2662N39600000
    1.5
    5075 mm78 mm15 mm45 mm10 mmRound Bore10 mmBlue2662N40300000
    1.5
    80120 mm123 mm15 mm55 mm10 mmRound Bore12 mmBlue2662N409000000
    1.5
    100150 mm153 mm15 mm60 mm10 mmRound Bore12 mmBlue2662N384000000
    2
    1224 mm28 mm20 mm18 mm10 mmRound Bore10 mmBlue2662N44400000
    2
    1530 mm34 mm20 mm24 mm10 mmRound Bore10 mmBlue2662N44700000
    2
    1632 mm36 mm20 mm26 mm10 mmRound Bore10 mmBlue2662N44800000
    2
    1836 mm40 mm20 mm30 mm10 mmRound Bore10 mmBlue2662N44900000
    2
    2040 mm44 mm20 mm32 mm10 mmRound Bore10 mmBlue2662N45100000
    2
    2448 mm52 mm20 mm38 mm10 mmRound Bore10 mmBlue2662N45300000
    2
    2550 mm54 mm20 mm40 mm10 mmRound Bore10 mmBlue2662N45400000
    2
    2856 mm60 mm20 mm45 mm10 mmRound Bore10 mmBlue2662N45600000
    2
    3060 mm64 mm20 mm50 mm10 mmRound Bore10 mmBlue2662N45700000
     
    14 1/2° Pressure Angle
    Image of Product. Front orientation. Spur Gears. Plastic Spur Gears, 14 1/2° Pressure Angle, Round Bore.

    Round Bore

    Image of Product. Front orientation. Spur Gears. Plastic Spur Gears, 14 1/2° Pressure Angle, Keyed Bore.

    Keyed Bore

     
    Nylon
    48
    121/4"0.29"1/8"0.188"0.188"Round Bore3/32"White57655K1100000
    48
    140.292"0.33"1/8"0.25"0.188"Round Bore3/32"White57655K1200000
    48
    160.333"0.37"1/8"0.25"0.188"Round Bore1/8"White57655K1300000
    48
    183/8"0.41"1/8"0.313"0.188"Round Bore1/8"White57655K1400000
    48
    200.417"0.45"1/8"0.375"0.25"Round Bore1/8"White57655K1500000
    48
    241/2"0.54"1/8"0.375"0.25"Round Bore1/8"White57655K1600000
    48
    280.583"0.62"1/8"0.5"0.25"Round Bore1/8"White57655K1700000
    48
    320.667"0.7"1/8"0.5"0.25"Round Bore1/8"White57655K1800000
    48
    363/4"0.79"1/8"0.625"0.25"Round Bore3/16"White57655K1900000
    48
    400.833"0.87"1/8"0.625"0.25"Round Bore3/16"White57655K2100000
    48
    427/8"0.91"1/8"0.438"0.25"Round Bore1/4"White57655K2200000
    48
    481"1.04"1/8"0.625"0.25"Round Bore3/16"White57655K2400000
    48
    561.167"1.2"1/8"0.625"0.25"Round Bore3/16"White57655K2500000
    48
    601 1/4"1.29"1/8"0.625"0.25"Round Bore1/4"White57655K2600000
    48
    641.333"1.37"1/8"0.625"0.25"Round Bore1/4"White57655K2700000
    48
    721 1/2"1.54"1/8"0.625"0.25"Round Bore1/4"White57655K2800000
    48
    801.667"1.7"1/8"0.625"0.25"Round Bore1/4"White57655K2900000
    48
    962"2.04"1/8"1"0.25"Round Bore1/4"White57655K3100000
    32
    123/8"0.44"3/16"0.25"0.188"Round Bore1/8"White57655K3200000
    32
    140.438"0.5"3/16"0.313"0.25"Round Bore1/8"White57655K3300000
    32
    161/2"0.56"3/16"0.375"0.25"Round Bore3/16"White57655K3400000
    32
    180.563"0.63"3/16"0.375"0.25"Round Bore3/16"White57655K3500000
    32
    205/8"0.69"3/16"0.5"0.25"Round Bore3/16"White57655K3600000
    32
    220.688"0.75"3/16"0.563"0.25"Round Bore1/4"White57655K3700000
    32
    243/4"0.81"3/16"0.625"0.25"Round Bore3/16"White57655K3800000
    32
    287/8"0.94"3/16"0.625"0.25"Round Bore3/16"White57655K4100000
    32
    321"1.06"3/16"0.625"0.25"Round Bore1/4"White57655K4200000
    32
    361 1/8"1.19"3/16"0.625"0.25"Round Bore1/4"White57655K4300000
    32
    401 1/4"1.31"3/16"0.625"0.25"Round Bore1/4"White57655K4500000
    32
    481 1/2"1.56"3/16"0.625"0.25"Round Bore1/4"White57655K4700000
    32
    521 5/8"1.69"3/16"0.625"0.25"Round Bore1/4"White57655K4800000
    32
    621.938"2"1/4"0.625"0.375"Round Bore3/8"White57655K4900000
    24
    121/2"0.58"5/16"0.375"0.25"Round Bore1/4"White57655K5100000
    24
    183/4"0.83"1/4"0.5"0.188"Round Bore1/4"White57655K5200000
    24
    241"1.08"1/4"0.625"0.375"Round Bore1/4"White57655K5300000
    24
    843 1/2"3.58"5/16"0.844"0.25"Round Bore3/8"White57655K5400000
    20
    110.55"0.65"3/8"0.406"0.375"Round/Plain Bore1/4" to 5/16"White60455K1200000
    20
    603"3.1"3/8"2"0.5"Round/Plain Bore3/8" to 1 1/8"White60455K1400000
    16
    123/4"0.88"7/32"0.438"0.031"Round Bore1/4"White57655K5500000
    16
    161"1.13"1/2"0.812"0.438"Round/Plain Bore1/4" to 1/2"White60455K3300000
    16
    201 1/4"1.38"19/64"0.875"0.5"Round Bore1/2"White57655K5600000
    16
    241 1/2"1.63"1/2"1.313"0.438"Round/Plain Bore1/2" to 5/8"White60455K3600000
    16
    301 7/8"2"7/8"1.625"0.5"Round Bore63/64"White57655K5700000
    16
    322"2.13"1/2"1.75"0.5"Round/Plain Bore1/2" to 1"White60455K3800000
    16
    362 1/4"2.38"5/16"0.75"0.375"Round Bore3/8"White57655K5800000
    16
    422 5/8"2.75"5/8"1.375"0.25"Keyed Bore13/32"0.125"0.063"White57655K5900000
    16
    483"3.13"1/2"2"0.5"Round/Plain Bore1/2" to 1 1/8"White60455K41000000
    12
    141.167"1.33"3/4"0.906"0.5"Round/Plain Bore1/4" to 1/2"White60455K4300000
    12
    484"4.17"3/4"2.5"0.75"Round/Plain Bore1/2" to 1 3/8"White60455K51000000
    10
    121.2"1.4"1"0.938"0.625"Round/Plain Bore1/4" to 1/2"White60455K52000000
    10
    202"2.2"1"1.719"0.625"Round/Plain Bore3/4" to 7/8"White60455K5600000
     
    Gear Racks
    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.
    Acetal—Acetal gear racks absorb less water than nylon racks, so they’re less likely to swell.
    Nylon—Nylon gear racks are wear resistant, but will swell and weaken over time when wet.
    Machined—Machined gear racks may be slightly bowed but will straighten out when installed.
    Gear
    Pitch
    Gear
    Module
    Lg.
    Pitch
    Ht.
    Ht.
    Face
    Wd.
    Fabrication
    Color
    Each
    20° Pressure Angle—Rectangular
    Image of Product. Front orientation. Spur Gear Racks. Plastic Spur Gears, 20° Pressure Angle—Rectangular.
     
    Acetal
    0.5
    250 mm5.9 mm6.3 mm4 mmMoldedGray2662N5500000
    1.5
    500 mm18.5 mm20 mm15 mmMachinedWhite2662N62000000
     
    Nylon
    1
    500 mm11 mm12 mm10 mmMachinedBlue2662N67000000
    2
    500 mm23 mm25 mm20 mmMachinedBlue2662N68000000
    2
    1,000 mm23 mm25 mm20 mmMachinedBlue2662N71000000
     
    14 1/2° Pressure Angle—Rectangular
    Image of Product. Front orientation. Spur Gear Racks. Plastic Spur Gears, 14 1/2° Pressure Angle—Rectangular.
     
    Nylon
    48
    1 ft.0.109"1/8"1/8"MoldedWhite57655K610000
    32
    1 ft.0.156"3/16"3/16"MoldedWhite57655K620000
    24
    1 ft.0.203"1/4"1/4"MoldedWhite57655K6300000
    20
    4 ft.0.325"3/8"3/8"MachinedGreen60435K88000000
    16
    1 ft.0.25"5/16"5/16"MoldedWhite57655K6400000
    16
    4 ft.0.438"1/2"1/2"MachinedGreen60435K89000000
    12
    4 ft.0.667"3/4"3/4"MachinedGreen60435K82000000
    10
    4 ft.0.9"1"1"MachinedGreen60435K84000000
     

    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
    2021 1/2°202281710Round Bore64140 Alloy SteelHardened3598N1590000003598N161000000
    1
    3021 1/2°303282510Round Bore104140 Alloy SteelHardened3598N1710000003598N172000000
    1
    4421 1/2°444683010Round Bore104140 Alloy SteelHardened3598N1820000003598N183000000
     
    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 Hardened3598N26300000003598N2640000000
    1
    50021 1/2°141584140 Alloy SteelNot Hardened3598N2720000003598N273000000
     
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