McMaster-Carr logo
    System of Measurement
    System of Measurement
    Inch
    Metric
    OD
    OD
    0.371"
    0.392"
    0.409"
    0.437"
    0.456"
    0.483"
    1/2"
    0.529"
    0.535"
    0.622"
    5/8"
    0.65"
    0.69"
    3/4"
    0.761"
    0.769"
    0.808"
    0.84"
    0.848"
    7/8"
    0.901"
    0.92"
    15/16"
    0.995"
    1"
    1.005"
    1 1/16"
    1.08"
    1.17"
    1.182"
    1 3/16"
    1.239"
    1 1/4"
    1.26"
    1 5/16"
    1.318"
    1.33"
    1.34"
    1 3/8"
    1.38"
    1.41"
    1.463"
    1.47"
    1.49"
    1 1/2"
    1.51"
    1.57"
    1.628"
    1.63"
    1.65"
    1.67"
    1 11/16"
    1.73"
    1.744"
    1 3/4"
    1.81"
    1.84"
    1.87"
    1 7/8"
    1.89"
    1.932"
    1.939"
    1.97"
    1.99"
    2"
    2.05"
    2.09"
    2.11"
    2 1/8"
    2.13"
    2.17"
    2 3/16"
    2.21"
    2.23"
    2 1/4"
    2.3"
    2.307"
    2 5/16"
    2.33"
    2.35"
    2.37"
    2 3/8"
    2.47"
    2.472"
    2.49"
    2 1/2"
    2.51"
    2.53"
    2 9/16"
    2.59"
    2.593"
    2.65"
    2.652"
    2.69"
    2.71"
    2.713"
    2.76"
    2.81"
    2.814"
    2.83"
    2 7/8"
    2.883"
    2.91"
    2.93"
    2.95"
    2.954"
    2.97"
    2.975"
    2.98"
    3"
    3.01"
    3.012"
    3.07"
    3.074"
    3.11"
    3.113"
    3.135"
    3.14"
    3 3/16"
    3.19"
    3.194"
    3 1/4"
    3.29"
    3.296"
    3.3"
    3.31"
    3.315"
    3.32"
    3.33"
    3.34"
    3.35"
    3.457"
    3.46"
    3.49"
    3 1/2"
    3.517"
    3.52"
    3.539"
    3.55"
    3 9/16"
    3.617"
    3.62"
    3.68"
    3.719"
    3.72"
    3.73"
    3.736"
    3.74"
    3.778"
    3.78"
    3.79"
    3.793"
    3.92"
    3.938"
    3.94"
    3.96"
    3.979"
    3.98"
    4"
    4.01"
    4.03"
    4.032"
    4.098"
    4.1"
    4.12"
    4.154"
    4.18"
    4.22"
    4.221"
    4 1/4"
    4.258"
    4.26"
    4.32"
    4.321"
    4.33"
    4 3/8"
    4.39"
    4.4"
    4.42"
    4.44"
    4.46"
    4.462"
    4.47"
    4 1/2"
    4.51"
    4.511"
    4.52"
    4.522"
    4.58"
    4.6"
    4.66"
    4.7"
    4.704"
    4.72"
    4.722"
    4.74"
    4.783"
    4.92"
    4.922"
    4.945"
    4.95"
    4.98"
    4.99"
    5"
    5.01"
    5.02"
    5.055"
    5.057"
    5.06"
    5.08"
    5.10"
    5.12"
    5.122"
    5.14"
    5.185"
    5.19"
    5.23"
    5 1/4"
    5.3"
    5.32"
    5.322"
    5.377"
    5.38"
    5.413"
    5.42"
    5.426"
    5.43"
    5.52"
    5.588"
    5.59"
    5.63"
    5.666"
    5.67"
    5.7"
    5.72"
    5.80"
    5.82"
    5.86"
    5.87"
    5.88"
    5.907"
    5.91"
    5.92"
    5.946"
    5.95"
    6"
    6.01"
    6.015"
    6.02"
    6.06"
    6.07"
    6.08"
    6.10"
    6.102"
    6.147"
    6.15"
    6.23"
    6.27"
    6.32"
    6.321"
    6.33"
    6.37"
    6.387"
    6.39"
    6 1/2"
    6.55"
    6.59"
    6.63"
    6.65"
    6.653"
    6.66"
    6.693"
    6.7"
    6.72"
    6.721"
    6.91"
    6.97"
    6.99"
    7.01"
    7.03"
    7.11"
    7.12"
    7.173"
    7.29"
    7.32"
    7 3/8"
    7.38"
    7.44"
    7.45"
    7.451"
    7.47"
    7.519"
    7.52"
    7.586"
    7.59"
    7.61"
    7.84"
    7.92"
    7.928"
    7.93"
    7.96"
    8.00"
    8.065"
    8.07"
    8.12"
    8.15"
    8.169"
    8.24"
    8 1/4"
    8 5/16"
    8.316"
    8.32"
    8.44"
    8.54"
    8.57"
    8.64"
    8.72"
    8.78"
    8.81"
    8.88"
    8.89"
    8.92"
    9.02"
    9.022"
    9 1/4"
    9.31"
    9.313"
    9.41"
    9 1/2"
    9.84"
    9.841"
    9.89"
    9.91"
    9.911"
    9.98"
    10.37"
    10.46"
    11.11"
    11.175"
    11.18"
    11.43"
    11 3/4"
    11.89"
    11.893"
    11.957"
    12.3"
    12.301"
    13.03"
    13.33"
    13.66"
    14.29"
    14.69"
    14.76"
    14.761"
    15.57"
    17.15"
    17.63"
    18.12"
    16mm
    18 mm
    19.9 mm
    20mm
    21.7 mm
    23mm
    23.6 mm
    24 mm
    25.8 mm
    26mm
    26.6 mm
    27.3 mm
    28mm
    29.2 mm
    29.4 mm
    30mm
    31 mm
    31.3 mm
    31.7 mm
    32mm
    33mm
    33.2 mm
    33.5 mm
    34 mm
    35mm
    35.1 mm
    36.7 mm
    37 mm
    38mm
    38.9 mm
    39.9 mm
    40mm
    40.8 mm
    41.91 mm
    42 mm
    42.36 mm
    42.7 mm
    43mm
    43.4 mm
    44.6 mm
    45mm
    47.4 mm
    47.6 mm
    48mm
    48.01 mm
    48.3 mm
    48.36 mm
    50mm
    50.3 mm
    51mm
    51.05 mm
    51.17 mm
    51.37 mm
    51.4 mm
    52.5 mm
    53.85 mm
    54.38 mm
    55mm
    55.88 mm
    56.44 mm
    56.9 mm
    57.39 mm
    57.5 mm
    59.4 mm
    59.9 mm
    59.94 mm
    60mm
    60.41 mm
    61mm
    61.06 mm
    62mm
    62.99 mm
    63.43 mm
    64.01 mm
    64.6 mm
    66.03 mm
    66.04 mm
    66.44 mm
    67mm
    67.5 mm
    67.82 mm
    68 mm
    68.45 mm
    69.09 mm
    69.46 mm
    69.5 mm
    71.02 mm
    71.88 mm
    72.14 mm
    72.46 mm
    73.5 mm
    74.8 mm
    75mm
    75.95 mm
    76.02 mm
    76.48 mm
    77 mm
    78 mm
    79.36 mm
    80mm
    80.01 mm
    80.5 mm
    81.03 mm
    81.55 mm
    83 mm
    84.07 mm
    85mm
    85.35 mm
    86 mm
    86.04 mm
    87.6 mm
    88.14 mm
    88.55 mm
    89 mm
    89.92 mm
    90mm
    90.17 mm
    91.95 mm
    92 mm
    92.58 mm
    93 mm
    94.49 mm
    96.01 mm
    96.08 mm
    96.27 mm
    96.68 mm
    97.36 mm
    99.57 mm
    99.6 mm
    100 mm
    101.1 mm
    101.6 mm
    101.85 mm
    102.73 mm
    103.37 mm
    103.6 mm
    104.14 mm
    104.65 mm
    106.13 mm
    108.2 mm
    109 mm
    109.39 mm
    111.16 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
    116.33 mm
    119.7 mm
    121.45 mm
    123.8 mm
    124.46 mm
    124.97 mm
    125.98 mm
    126.49 mm
    126.96 mm
    127.49 mm
    128.27 mm
    128.86 mm
    131.31 mm
    136.4 mm
    138.04 mm
    140.97 mm
    142.1 mm
    151.47 mm
    152.65 mm
    152.78 mm
    153.08 mm
    154.11 mm
    156.72 mm
    160.53 mm
    161.16 mm
    164.59 mm
    168.99 mm
    177.31 mm
    178.24 mm
    187.2 mm
    For Shaft Type
    For Shaft Type
    Round
    Keyed
    Bore Type
    Bore Type
    Finished
    Machinable
    Bushing
    For Roller Chain Strand Type
    For Roller Chain Strand Type
    Single
    Double
    Fivefold
    Quadruple
    Sixfold
    Triple
    DFARS (Defense Acquisition Regulations Supplement)
    DFARS (Defense Acquisition
    Regulations Supplement)
    click to learn more about
    RoHS (Restriction of Hazardous Substances)
    RoHS (Restriction of
    Hazardous Substances)
    RoHS Compliant
    REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)
    REACH (Registration,
    Evaluation, Authorization
    and Restriction of Chemicals)
    REACH Compliant
    Shaft Mount Type
    Shaft Mount Type
    Set Screw
    Press Fit
    Clamp On
    Machinable
    Roller Chain Standard
    Roller Chain Standard
    ANSI
    ISO
    DIN
    Sprocket Type
    Sprocket Type
    Standard
    Idler
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