McMaster-Carr logo
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    System of Measurement
    System of Measurement
    Inch
    Metric
    OD
    OD
    0.28"
    0.29"
    0.35"
    0.392"
    0.4"
    0.41"
    0.42"
    0.425"
    0.437"
    0.44"
    0.45"
    0.47"
    0.48"
    0.483"
    0.5"
    0.529"
    0.53"
    0.54"
    0.555"
    0.56"
    0.58"
    0.59"
    0.622"
    0.63"
    0.635"
    0.67"
    0.685"
    0.69"
    0.7"
    0.71"
    0.74"
    0.75"
    0.761"
    0.78"
    0.79"
    0.8"
    0.808"
    0.81"
    0.83"
    0.84"
    0.85"
    0.875"
    0.88"
    0.895"
    0.9"
    0.901"
    0.92"
    0.929"
    0.938"
    0.94"
    0.945"
    0.96"
    0.993"
    0.995"
    1"
    1.04"
    1.06"
    1.063"
    1.07"
    1.08"
    1.09"
    1.094"
    1.1"
    1.105"
    1.12"
    1.125"
    1.13"
    1.17"
    1.182"
    1.184"
    1.188"
    1.19"
    1.21"
    1.248"
    1.25"
    1.26"
    1.3"
    1.31"
    1.312"
    1.32"
    1.33"
    1.34"
    1.35"
    1.36"
    1.37"
    1.375"
    1.38"
    1.4"
    1.41"
    1.42"
    1.438"
    1.45"
    1.463"
    1.49"
    1.5"
    1.502"
    1.51"
    1.54"
    1.56"
    1.563"
    1.566"
    1.57"
    1.58"
    1.59"
    1.6"
    1.61"
    1.62"
    1.625"
    1.63"
    1.65"
    1.67"
    1.672"
    1.69"
    1.7"
    1.73"
    1.744"
    1.75"
    1.756"
    1.8"
    1.81"
    1.83"
    1.84"
    1.85"
    1.87"
    1.875"
    1.88"
    1.89"
    1.9"
    1.92"
    1.922"
    1.932"
    1.97"
    1.99"
    2"
    2.011"
    2.017"
    2.03"
    2.05"
    2.06"
    2.08"
    2.09"
    2.1"
    2.11"
    2.12"
    2.125"
    2.13"
    2.138"
    2.14"
    2.156"
    2.17"
    2.2"
    2.21"
    2.22"
    2.23"
    2.24"
    2.25"
    2.272"
    2.3"
    2.307"
    2.31"
    2.33"
    2.35"
    2.37"
    2.375"
    2.38"
    2.39"
    2.391"
    2.47"
    2.472"
    2.484"
    2.49"
    2.5"
    2.51"
    2.526"
    2.53"
    2.55"
    2.58"
    2.59"
    2.593"
    2.6"
    2.62"
    2.625"
    2.63"
    2.64"
    2.65"
    2.652"
    2.654"
    2.67"
    2.69"
    2.7"
    2.71"
    2.713"
    2.75"
    2.76"
    2.78"
    2.781"
    2.79"
    2.797"
    2.8"
    2.81"
    2.814"
    2.83"
    2.845"
    2.85"
    2.875"
    2.88"
    2.883"
    2.91"
    2.95"
    2.954"
    2.97"
    2.975"
    2.98"
    3"
    3.01"
    3.02"
    3.036"
    3.07"
    3.074"
    3.08"
    3.09"
    3.094"
    3.1"
    3.109"
    3.11"
    3.113"
    3.13"
    3.135"
    3.14"
    3.15"
    3.163"
    3.17"
    3.18"
    3.19"
    3.194"
    3.2"
    3.22"
    3.24"
    3.25"
    3.29"
    3.296"
    3.3"
    3.31"
    3.315"
    3.32"
    3.33"
    3.34"
    3.344"
    3.35"
    3.42"
    3.438"
    3.457"
    3.46"
    3.49"
    3.5"
    3.517"
    3.52"
    3.523"
    3.54"
    3.55"
    3.563"
    3.566"
    3.578"
    3.58"
    3.617"
    3.62"
    3.65"
    3.67"
    3.68"
    3.7"
    3.71"
    3.719"
    3.72"
    3.73"
    3.735"
    3.736"
    3.74"
    3.75"
    3.778"
    3.78"
    3.79"
    3.793"
    3.8"
    3.828"
    3.83"
    3.88"
    3.92"
    3.938"
    3.94"
    3.95"
    3.96"
    3.979"
    3.98"
    4"
    4.01"
    4.016"
    4.02"
    4.03"
    4.032"
    4.044"
    4.05"
    4.06"
    4.063"
    4.098"
    4.1"
    4.12"
    4.15"
    4.17"
    4.18"
    4.2"
    4.22"
    4.221"
    4.24"
    4.25"
    4.258"
    4.26"
    4.32"
    4.321"
    4.33"
    4.34"
    4.35"
    4.369"
    4.37"
    4.38"
    4.39"
    4.391"
    4.42"
    4.44"
    4.45"
    4.46"
    4.462"
    4.47"
    4.5"
    4.51"
    4.511"
    4.52"
    4.522"
    4.53"
    4.54"
    4.55"
    4.564"
    4.58"
    4.6"
    4.66"
    4.687"
    4.7"
    4.703"
    4.704"
    4.72"
    4.722"
    4.74"
    4.75"
    4.781"
    4.92"
    4.922"
    4.945"
    4.95"
    4.98"
    4.99"
    5"
    5.01"
    5.02"
    5.057"
    5.06"
    5.12"
    5.122"
    5.13"
    5.15"
    5.17"
    5.185"
    5.19"
    5.22"
    5.24"
    5.25"
    5.28"
    5.3"
    5.32"
    5.322"
    5.33"
    5.34"
    5.35"
    5.37"
    5.377"
    5.38"
    5.42"
    5.426"
    5.43"
    5.45"
    5.5"
    5.52"
    5.54"
    5.55"
    5.588"
    5.59"
    5.63"
    5.666"
    5.67"
    5.7"
    5.72"
    5.75"
    5.82"
    5.86"
    5.88"
    5.907"
    5.91"
    5.92"
    5.946"
    5.95"
    5.959"
    5.97"
    6"
    6.01"
    6.015"
    6.02"
    6.04"
    6.147"
    6.15"
    6.2"
    6.23"
    6.25"
    6.27"
    6.32"
    6.321"
    6.33"
    6.34"
    6.35"
    6.387"
    6.39"
    6.45"
    6.5"
    6.54"
    6.55"
    6.59"
    6.6"
    6.61"
    6.63"
    6.65"
    6.653"
    6.66"
    6.7"
    6.72"
    6.721"
    6.75"
    6.91"
    6.95"
    6.97"
    6.99"
    7"
    7.01"
    7.03"
    7.04"
    7.1"
    7.11"
    7.12"
    7.13"
    7.15"
    7.29"
    7.32"
    7.35"
    7.38"
    7.44"
    7.45"
    7.451"
    7.47"
    7.5"
    7.519"
    7.52"
    7.586"
    7.59"
    7.61"
    7.75"
    7.84"
    7.88"
    7.92"
    7.928"
    7.93"
    7.96"
    8"
    8.016"
    8.065"
    8.07"
    8.12"
    8.24"
    8.25"
    8.316"
    8.32"
    8.33"
    8.35"
    8.44"
    8.54"
    8.57"
    8.64"
    8.72"
    8.75"
    8.78"
    8.81"
    8.88"
    8.89"
    8.92"
    8.95"
    9"
    9.02"
    9.022"
    9.25"
    9.31"
    9.313"
    9.41"
    9.495"
    9.5"
    9.52"
    9.75"
    9.84"
    9.841"
    9.89"
    9.91"
    9.911"
    9.98"
    10"
    10.22"
    10.25"
    10.37"
    10.46"
    10.75"
    11.11"
    11.175"
    11.18"
    11.35"
    11.43"
    11.75"
    11.89"
    11.893"
    12.3"
    12.301"
    12.37"
    12.75"
    13.03"
    13.33"
    13.66"
    13.75"
    14.29"
    14.69"
    14.76"
    14.761"
    15.57"
    15.75"
    17.15"
    17.63"
    18.12"
    18.75"
    19.045"
    19.09"
    8.5mm
    9mm
    9.5mm
    10mm
    10.8mm
    11 mm
    11.4mm
    11.5mm
    12mm
    12.2mm
    13mm
    13.5mm
    13.9 mm
    14mm
    14.1mm
    14.4mm
    14.7mm
    15mm
    15.2mm
    15.6mm
    16 mm
    16.1mm
    17mm
    17.4mm
    17.6 mm
    18mm
    18.4mm
    18.8mm
    19mm
    19.9 mm
    20mm
    20.1mm
    20.38mm
    20.7mm
    20.8mm
    21 mm
    21.4mm
    21.6mm
    21.7 mm
    22mm
    22.2 mm
    22.4mm
    22.7mm
    23 mm
    23.5mm
    23.6 mm
    24mm
    24.21mm
    25mm
    25.4 mm
    25.6mm
    25.8 mm
    26 mm
    26.4mm
    26.6 mm
    27mm
    27.2mm
    27.3 mm
    28mm
    28.1mm
    28.5mm
    28.75mm
    29.2 mm
    29.4 mm
    30mm
    30.4mm
    30.58mm
    30.7mm
    31 mm
    31.3 mm
    31.4mm
    31.5mm
    31.7 mm
    32mm
    32.1mm
    32.6mm
    32.8mm
    33 mm
    33.2 mm
    33.3mm
    33.4mm
    33.5 mm
    33.6mm
    34mm
    34.5 mm
    35 mm
    35.1 mm
    36mm
    36.1mm
    36.53mm
    36.7 mm
    37mm
    38mm
    38.3mm
    38.77mm
    38.9 mm
    39mm
    39.6mm
    39.9 mm
    40mm
    40.5mm
    40.52 mm
    40.8 mm
    41mm
    41.3 mm
    41.6 mm
    41.91 mm
    42mm
    42.06mm
    42.36 mm
    42.7 mm
    42.8mm
    43 mm
    43.4 mm
    43.9mm
    44mm
    44.43mm
    44.45 mm
    44.5 mm
    44.6 mm
    45mm
    45.24mm
    46mm
    46.1mm
    47mm
    47.1mm
    47.4 mm
    47.6 mm
    48mm
    48.01 mm
    48.3 mm
    48.36 mm
    48.41mm
    49.5mm
    49.6 mm
    50mm
    50.3 mm
    51mm
    51.05 mm
    51.17 mm
    51.2mm
    51.37 mm
    51.4 mm
    51.59mm
    52mm
    52.5 mm
    52.8mm
    53.3mm
    53.85 mm
    53.98mm
    54mm
    54.11 mm
    54.38 mm
    54.6mm
    55 mm
    55.88 mm
    56.44 mm
    56.9 mm
    57mm
    57.15mm
    57.39 mm
    57.5 mm
    57.7mm
    58mm
    58.15mm
    58.17 mm
    59.4 mm
    59.9 mm
    59.94 mm
    60mm
    60.3 mm
    60.33mm
    60.41 mm
    60.46 mm
    60.75 mm
    61mm
    61.06 mm
    61.22 mm
    62mm
    62.23 mm
    62.8mm
    62.99 mm
    63 mm
    63.43 mm
    64mm
    64.01 mm
    64.2mm
    64.5mm
    64.6 mm
    65mm
    65.03 mm
    65.08 mm
    66mm
    66.03 mm
    66.04 mm
    66.44 mm
    66.5 mm
    66.6mm
    66.68mm
    66.7 mm
    67 mm
    67.5 mm
    67.57 mm
    67.82 mm
    68mm
    68.45 mm
    68.8 mm
    69.09 mm
    69.46 mm
    69.5 mm
    69.85 mm
    70 mm
    70.11 mm
    71.02 mm
    71.88 mm
    72.14 mm
    72.46 mm
    72.6 mm
    73.03mm
    73.5 mm
    74mm
    74.6 mm
    74.8 mm
    74.93 mm
    75 mm
    75.15 mm
    75.55 mm
    75.95 mm
    76mm
    76.02 mm
    76.48 mm
    76.6 mm
    77mm
    77.1mm
    78mm
    78.49 mm
    78.59mm
    79.36 mm
    80mm
    80.01 mm
    80.17 mm
    80.5 mm
    81mm
    81.03 mm
    81.55 mm
    82mm
    83 mm
    84mm
    84.07 mm
    84.58mm
    84.94 mm
    85mm
    85.09 mm
    85.35 mm
    85.6 mm
    86 mm
    86.04 mm
    87 mm
    87.6 mm
    88.14 mm
    88.55 mm
    89 mm
    89.92 mm
    90mm
    90.17 mm
    90.36 mm
    90.43 mm
    90.48 mm
    90.6 mm
    90.67 mm
    91.95 mm
    92 mm
    92.58 mm
    93 mm
    94mm
    94.25 mm
    94.49 mm
    94.65 mm
    95.25 mm
    95.6 mm
    96.01 mm
    96.08 mm
    96.27 mm
    96.5mm
    96.52mm
    96.68 mm
    97 mm
    97.03 mm
    97.36 mm
    98mm
    99.57 mm
    99.6 mm
    100 mm
    100.08 mm
    100.59 mm
    100.6 mm
    101.1 mm
    101.6 mm
    101.85 mm
    102mm
    102.72mm
    102.73 mm
    103mm
    103.37 mm
    103.6 mm
    104 mm
    104.14 mm
    104.65 mm
    105.6 mm
    106 mm
    106.13 mm
    108.2 mm
    109 mm
    109.39 mm
    109.99 mm
    110.34 mm
    111.16 mm
    111.6 mm
    111.7 mm
    112.27 mm
    112.73 mm
    114.01 mm
    114.3 mm
    114.81 mm
    115.42 mm
    115.7 mm
    115.9mm
    116 mm
    116.33 mm
    118.26 mm
    119.7 mm
    120 mm
    120.65 mm
    120.91 mm
    121.45 mm
    122mm
    123mm
    123.6 mm
    123.8 mm
    124mm
    124.46 mm
    124.97 mm
    125.98 mm
    126.49 mm
    126.96 mm
    127mm
    127.49 mm
    128.27 mm
    128.86 mm
    129 mm
    130mm
    130.6 mm
    130.99 mm
    131 mm
    131.07 mm
    131.31 mm
    136 mm
    136.4 mm
    137.6 mm
    138mm
    138.04 mm
    140.97 mm
    142.1 mm
    144 mm
    145.6 mm
    146mm
    150mm
    150.8 mm
    150.95 mm
    151mm
    151.13 mm
    151.47 mm
    152.65 mm
    152.78 mm
    153mm
    153.08 mm
    154.11 mm
    155.6 mm
    156.72 mm
    160.53 mm
    161.16 mm
    164.59 mm
    165.6 mm
    167 mm
    168.99 mm
    174 mm
    177 mm
    177.31 mm
    178.24 mm
    187 mm
    187.2 mm
    189.1 mm
    190mm
    194 mm
    195.6 mm
    197 mm
    200mm
    205.6 mm
    207 mm
    228 mm
    231 mm
    250mm
    284 mm
    287 mm
    342 mm
    457 mm
    Gear Pitch
    Gear Pitch
    click to learn more about
    6
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    8
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    10
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    12
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    16
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    18
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    20
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    24
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    32
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    48
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    64
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    Pressure Angle
    Pressure Angle
    14 1/2°
    20°
    Module
    Module
    click to learn more about
    0.5
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    0.8
    learn more about 0.8 by pressing accesskey, i.
    1
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    1.25
    learn more about 1.25 by pressing accesskey, i.
    1.5
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    2
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    2.5
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    Hub Diameter
    Hub Diameter
    0.18"
    0.19"
    0.22"
    15/64"
    0.28"
    9/32"
    0.31"
    0.312"
    21/64"
    0.34"
    3/8"
    0.38"
    25/64"
    2/5"
    0.406"
    0.425"
    0.437"
    7/16"
    0.438"
    0.442"
    0.45"
    0.46"
    0.469"
    0.47"
    0.48"
    0.494"
    1/2"
    0.52"
    0.53"
    0.531"
    17/32"
    0.54"
    0.546"
    0.547"
    0.555"
    0.56"
    9/16"
    0.563"
    0.58"
    0.59"
    3/5"
    0.603"
    0.609"
    0.62"
    5/8"
    0.63"
    0.656"
    21/32"
    0.676"
    0.685"
    0.688"
    0.71"
    23/32"
    0.719"
    0.72"
    0.74"
    3/4"
    0.754"
    0.78"
    0.79"
    0.806"
    0.81"
    0.812"
    13/16"
    0.813"
    0.84"
    27/32"
    0.853"
    0.859"
    0.86"
    7/8"
    57/64"
    0.906"
    29/32"
    0.92"
    0.937"
    0.938"
    31/32"
    0.969"
    0.97"
    0.984"
    63/64"
    0.99"
    1"
    1 1/32"
    1.062"
    1 1/16"
    1.063"
    1.109"
    1 7/64"
    1.12"
    1 1/8"
    1 3/16"
    1.188"
    1.19"
    1.2"
    1.21"
    1 7/32"
    1.219"
    1.22"
    1.222"
    1 1/4"
    1 9/32"
    1.312"
    1.313"
    1.34"
    1 11/32"
    1 23/64"
    1.37"
    1 3/8"
    1.391"
    1.4"
    1.406"
    1 13/32"
    1 7/16"
    1.438"
    1.439"
    1.44"
    1 15/32"
    1.47"
    1 1/2"
    1.531"
    1.56"
    1 9/16"
    1 19/32"
    1.62"
    1 5/8"
    1.641"
    1.65"
    1 11/16"
    1.688"
    1.69"
    1.7"
    1 23/32"
    1.719"
    1.72"
    1 3/4"
    1 25/32"
    1 4/5"
    1.812"
    1 13/16"
    1 27/32"
    1.85"
    1.87"
    1 7/8"
    1 29/32"
    1 15/16"
    1.94"
    1 63/64"
    2"
    2.06"
    2 1/16"
    2.063"
    2.12"
    2 1/8"
    2.156"
    2.219"
    2 15/64"
    2 1/4"
    2 5/16"
    2 11/32"
    2 3/8"
    2 7/16"
    2.438"
    2 15/32"
    2 1/2"
    2.56"
    2 9/16"
    2.563"
    2 19/32"
    2 5/8"
    2 11/16"
    2.688"
    2 3/4"
    2 25/32"
    2 13/16"
    2.813"
    2.844"
    2 7/8"
    2.88"
    2.95"
    3"
    3.06"
    3 1/16"
    3.063"
    3 3/32"
    3 1/8"
    3 3/16"
    3 1/4"
    3 3/8"
    3 13/32"
    3 1/2"
    3 9/16"
    3 5/8"
    3 11/16"
    3 3/4"
    3 13/16"
    3 7/8"
    3.88"
    3 15/16"
    4"
    4 1/8"
    4 3/16"
    4 1/4"
    4 1/2"
    4 9/16"
    4 5/8"
    4 3/4"
    5 1/4"
    7.9mm
    8mm
    8.5mm
    9 mm
    9.2mm
    9.5mm
    9.8 mm
    9.9mm
    10mm
    10.8mm
    11 mm
    11.2mm
    11.23 mm
    11.4mm
    11.5 mm
    11.9mm
    12 mm
    12.19 mm
    12.2mm
    12.45 mm
    12.5mm
    12.55 mm
    12.7 mm
    13 mm
    13.46 mm
    13.5mm
    13.9 mm
    14mm
    14.1mm
    14.27 mm
    14.4mm
    14.7mm
    14.73 mm
    15 mm
    15.19 mm
    15.2mm
    15.88 mm
    16 mm
    16.1mm
    16.13 mm
    17 mm
    17.17 mm
    17.2mm
    17.4mm
    17.81 mm
    18mm
    18.03 mm
    18.8mm
    19mm
    19.15 mm
    19.2mm
    19.71 mm
    20 mm
    20.5mm
    21 mm
    21.62 mm
    21.8mm
    22 mm
    22.22mm
    23 mm
    23.39 mm
    23.77 mm
    23.8mm
    24mm
    25 mm
    25.4 mm
    26mm
    27mm
    28 mm
    28.57mm
    29 mm
    29.2mm
    29.21 mm
    30 mm
    30.35 mm
    30.4mm
    31 mm
    31.04 mm
    31.75mm
    32mm
    33mm
    33.02 mm
    34 mm
    34.92mm
    35mm
    36mm
    37 mm
    38mm
    38.1mm
    38.7 mm
    39.37 mm
    40mm
    41.27mm
    41.28 mm
    42 mm
    42.67mm
    42.68 mm
    43 mm
    44 mm
    45mm
    45.72 mm
    46 mm
    46.02mm
    46.04 mm
    47 mm
    47.63 mm
    48 mm
    49 mm
    50mm
    50.8 mm
    51 mm
    52 mm
    53 mm
    53.5 mm
    53.97mm
    54 mm
    55mm
    57 mm
    57.15mm
    58 mm
    60mm
    60.33 mm
    62 mm
    62.69 mm
    64 mm
    65 mm
    66 mm
    66.67mm
    67 mm
    69.85mm
    70 mm
    70.64 mm
    71 mm
    72 mm
    73 mm
    73.03 mm
    75 mm
    76 mm
    76.2 mm
    78 mm
    79.5mm
    80 mm
    82 mm
    82.55 mm
    83 mm
    85 mm
    89 mm
    90 mm
    90.47 mm
    92.07mm
    95 mm
    96 mm
    100 mm
    102 mm
    108 mm
    110 mm
    111mm
    Teeth Heat Treatment
    Teeth Heat Treatment
    Not Hardened
    Hardened
    DFARS (Defense Acquisition Regulations Supplement)
    DFARS (Defense Acquisition
    Regulations Supplement)
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    DFARS Specialty Metals
    COTS-Exempt
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    RoHS (Restriction of Hazardous Substances)
    RoHS (Restriction of
    Hazardous Substances)
    RoHS Compliant
    RoHS Compliant with
    Exemptions
    For Shaft Angle
    For Shaft Angle
    45°60°
    90°120°
    REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)
    REACH (Registration,
    Evaluation, Authorization
    and Restriction of Chemicals)
    REACH Compliant
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