McMaster-Carr logo
    System of Measurement
    System of Measurement
    Inch
    Metric
    OD
    OD
    3/8"
    0.42"
    0.425"
    0.45"
    0.47"
    0.48"
    1/2"
    0.53"
    0.55"
    0.555"
    0.58"
    5/8"
    0.63"
    0.635"
    0.68"
    0.685"
    11/16"
    0.7"
    0.71"
    0.73"
    0.74"
    3/4"
    0.78"
    0.79"
    4/5"
    7/8"
    0.88"
    0.895"
    0.929"
    0.93"
    0.938"
    0.94"
    0.945"
    0.993"
    1"
    1 1/16"
    1.063"
    1.09"
    1.094"
    1.105"
    1.12"
    1 1/8"
    1.13"
    1.184"
    1.188"
    1.19"
    1.21"
    1.24"
    1.248"
    1 1/4"
    1.26"
    1.312"
    1 5/16"
    1 3/8"
    1.38"
    1.4"
    1.438"
    1 1/2"
    1.502"
    1.56"
    1 9/16"
    1.563"
    1.566"
    1 5/8"
    1.63"
    1.672"
    1.7"
    1.73"
    1 3/4"
    1.756"
    1 4/5"
    1 13/16"
    1.85"
    1 7/8"
    1.88"
    1.922"
    1 15/16"
    2"
    2.011"
    2.017"
    2.05"
    2.1"
    2 1/8"
    2.13"
    2.138"
    2.156"
    2 3/16"
    2 1/4"
    2.272"
    2.35"
    2 3/8"
    2.39"
    2.391"
    2.4"
    2.47"
    2.484"
    2 1/2"
    2.526"
    2.53"
    2.55"
    2.6"
    2 5/8"
    2.63"
    2.654"
    2 3/4"
    2.78"
    2.781"
    2.79"
    2.797"
    2.8"
    2.845"
    2.85"
    2 7/8"
    2.88"
    2.91"
    2.95"
    3"
    3.03"
    3.036"
    3.05"
    3 1/16"
    3.094"
    3.1"
    3.109"
    3.11"
    3.15"
    3.163"
    3 1/4"
    3.28"
    3.328"
    3.33"
    3.344"
    3.35"
    3 3/8"
    3.4"
    3.42"
    3.438"
    3 1/2"
    3.523"
    3.55"
    3.563"
    3.566"
    3.578"
    3.65"
    3.735"
    3.74"
    3 3/4"
    3.8"
    3.805"
    3.813"
    3.828"
    3.95"
    4"
    4.016"
    4.044"
    4.047"
    4.05"
    4.06"
    4 1/16"
    4.063"
    4.12"
    4 1/8"
    4.15"
    4 1/4"
    4.34"
    4.35"
    4.369"
    4.38"
    4.391"
    4.45"
    4 1/2"
    4.516"
    4.52"
    4.54"
    4.55"
    4.564"
    4.687"
    4.7"
    4.703"
    4 3/4"
    4.781"
    4.8"
    4.95"
    5"
    5.02"
    5.05"
    5.10"
    5.15"
    5 1/4"
    5.32"
    5.33"
    5.34"
    5.35"
    5.45"
    5 1/2"
    5.54"
    5.55"
    5.6"
    5 3/4"
    5.80"
    5.87"
    5 7/8"
    5.95"
    5.959"
    5.97"
    6"
    6.05"
    6.08"
    6.15"
    6 1/4"
    6.34"
    6.35"
    6.45"
    6 1/2"
    6.54"
    6.55"
    6.6"
    6.61"
    6 3/4"
    6.95"
    7"
    7.1"
    7.15"
    7 1/4"
    7.35"
    7.384"
    7.45"
    7 1/2"
    7 3/4"
    7.88"
    8"
    8.016"
    8 1/4"
    8.35"
    8.45"
    8 3/4"
    8.95"
    9"
    9 1/4"
    9.495"
    9.52"
    9 3/4"
    10"
    10 1/4"
    10 3/4"
    11.35"
    11 3/4"
    12"
    12 3/4"
    13 3/4"
    14"
    15 3/4"
    16"
    18 3/4"
    19.045"
    19.09"
    10.8mm
    11mm
    11.4mm
    12.2mm
    13mm
    13.5mm
    13.9 mm
    14mm
    14.1mm
    14.7mm
    15mm
    16mm
    16.1mm
    17mm
    17.4mm
    18mm
    18.8mm
    20 mm
    20.1mm
    20.7mm
    21mm
    22mm
    22.2 mm
    22.7mm
    23 mm
    24mm
    25mm
    25.4 mm
    28 mm
    28.1mm
    30mm
    30.7mm
    32 mm
    33.4mm
    35 mm
    36 mm
    36.1mm
    36.53mm
    38 mm
    38.3mm
    40mm
    41mm
    41.3 mm
    42 mm
    42.06mm
    43mm
    43.9mm
    44 mm
    44.45 mm
    44.5 mm
    45.24mm
    46mm
    46.1mm
    48 mm
    48.41mm
    51 mm
    51.2mm
    51.59mm
    53.98mm
    54 mm
    54.11 mm
    57mm
    57.15mm
    57.7mm
    58.17 mm
    60 mm
    60.3 mm
    60.33mm
    60.46 mm
    61.22 mm
    62.23 mm
    63 mm
    64 mm
    64.2mm
    65.03 mm
    65.08 mm
    66 mm
    66.04 mm
    66.5 mm
    66.68mm
    66.7 mm
    67 mm
    67.57 mm
    68.8 mm
    69mm
    69.85 mm
    70 mm
    70.11 mm
    72.6 mm
    73.03mm
    74mm
    74.6 mm
    74.93 mm
    75 mm
    75.15 mm
    75.55 mm
    76.6 mm
    77mm
    77.1mm
    78.49 mm
    78.59mm
    80.01 mm
    80.17 mm
    82mm
    83 mm
    84.58mm
    84.94 mm
    85.09 mm
    85.6 mm
    87 mm
    88mm
    89 mm
    89.92 mm
    90mm
    90.43 mm
    90.48 mm
    90.6 mm
    93 mm
    94.25 mm
    94.65 mm
    95.25 mm
    95.6 mm
    96.5mm
    96.52mm
    97 mm
    97.03 mm
    100 mm
    100.08 mm
    100.59 mm
    100.6 mm
    101.6 mm
    102.72mm
    104 mm
    105.6 mm
    106 mm
    109.99 mm
    110.34 mm
    111.6 mm
    115.9mm
    116 mm
    118.26 mm
    120 mm
    120.65 mm
    120.91 mm
    123.6 mm
    124.46 mm
    127mm
    129 mm
    130.6 mm
    130.99 mm
    131 mm
    131.07 mm
    136 mm
    137.6 mm
    144 mm
    145.6 mm
    146mm
    150.8 mm
    150.95 mm
    151.13 mm
    155.6 mm
    165.6 mm
    167 mm
    174 mm
    177 mm
    187 mm
    189.1 mm
    194 mm
    195.6 mm
    197 mm
    205.6 mm
    207 mm
    228 mm
    231 mm
    284 mm
    287 mm
    342 mm
    457 mm
    Number of Grooves
    Number of Grooves
    1
    2
    3
    4
    6
    10
    16
    For V-Belt Type
    For V-Belt Type
    StandardCogged
    Banded
    Pitch Diameter
    Pitch Diameter
    0.255"
    0.28"
    0.306"
    0.357"
    0.382"
    0.407"
    0.458"
    0.509"
    0.535"
    0.56"
    0.611"
    0.637"
    0.7"
    0.713"
    0.764"
    0.828"
    0.891"
    0.9"
    0.917"
    0.955"
    1.019"
    1.07"
    1.109"
    1.146"
    1.194"
    1.25"
    1.273"
    1.337"
    1.4"
    1.401"
    1.432"
    1.5"
    1.528"
    1.53"
    1.655"
    1.665"
    1.671"
    1.7"
    1.7"-2.5"
    1.75"
    1.783"
    1.8"
    1.84"
    1.9"
    1.9"-2.9"
    1.901"
    1.91"
    1.91"-3.15"
    1.95"-3.9"
    2"
    2.037"
    2.1"
    2.149"
    2.2"
    2.228"
    2.25"
    2.292"
    2.3"
    2.3"-3.1"
    2.37"-4.84"
    2.387"
    2.4"
    2.4"-3.2"
    2.4"-3.4"
    2.5"
    2.53"
    2.546"
    2.6"
    2.626"
    2.674"
    2.7"-3.5"
    2.7"-3.7"
    2.75"
    2.8"
    2.8"-3.8"
    2.801"
    2.84"
    2.865"
    2.9"
    2.9"-3.9"
    2.99"
    3"
    3"-4"
    3.024"
    3.03"
    3.056"
    3.1"-4.1"
    3.104"
    3.183"
    3.2"
    3.25"
    3.3"
    3.3"-4.1"
    3.342"
    3.4"
    3.4"-4.4"
    3.5"
    3.501"
    3.581"
    3.6"
    3.7"
    3.7"-4.7"
    3.75"
    3.8"
    3.82"
    3.84"
    3.9"
    3.9"-4.7"
    4"
    4"-5"
    4.07"
    4.1"
    4.138"
    4.2"
    4.25"
    4.297"
    4.3"-5.3"
    4.4"
    4.456"
    4.5"
    4.53"
    4.584"
    4.6"
    4.7"
    4.7"-5.7"
    4.75"
    4.775"
    4.8"
    4.8"-6"
    4.9"
    4.95"
    5"
    5.093"
    5.1"
    5.12"
    5.2"
    5.4"
    5.5"
    5.6"
    5.7"
    5.73"
    5.75"
    5.8"
    5.9"
    6"
    6.03"
    6.1"
    6.2"
    6.366"
    6.4"
    6.6"
    6.7"
    6.75"
    6.8"
    7"
    7.1"
    7.162"
    7.4"
    7.5"
    7.6"
    7.639"
    7.75"
    7.9"
    8"
    8.03"
    8.2"
    8.4"
    8.5"
    8.6"
    8.75"
    8.9"
    9"
    9.4"
    9.5"
    9.549"
    9.75"
    9.9"
    10"
    10.4"
    10.6"
    11"
    11.4"
    12"
    12.4"
    13"
    13.4"
    15"
    15.4"
    18"
    18.4"
    19.099"
    6.5mm
    7.1mm
    7.645 mm
    7.8mm
    8.915 mm
    9.1mm
    9.55 mm
    9.7mm
    10.185 mm
    10.19 mm
    10.3mm
    10.82 mm
    11.455 mm
    11.6mm
    12.725 mm
    12.73 mm
    12.9mm
    13.6mm
    14.2mm
    15.291 mm
    15.5mm
    16.05 mm
    16.18mm
    16.2mm
    16.23 mm
    16.561 mm
    16.8mm
    17.196 mm
    17.78mm
    17.8mm
    17.831 mm
    18.1mm
    19.101 mm
    19.25 mm
    19.4mm
    19.41mm
    20.371 mm
    20.7mm
    21.006 mm
    22.45 mm
    22.6mm
    22.63mm
    22.911 mm
    23.3mm
    23.876 mm
    24.05 mm
    24.26mm
    24.3mm
    24.816 mm
    25.476 mm
    25.6 mm
    25.88mm
    25.9mm
    26.746 mm
    27.2mm
    28.5mm
    28.651 mm
    28.8 mm
    29.1mm
    29.11mm
    30.32mm
    30.4 mm
    30.556 mm
    31mm
    31.826 mm
    32 mm
    32.3mm
    32.33mm
    32.461 mm
    33.96mm
    34.366 mm
    35.25 mm
    35.59mm
    35.6mm
    36.37mm
    38.202 mm
    38.35 mm
    38.4 mm
    38.8mm
    38.81mm
    39.42mm
    40 mm
    41.6 mm
    42mm
    42.012 mm
    42.04mm
    42.44mm
    42.977 mm
    43.2 mm
    44.7 mm
    44.75 mm
    45.29mm
    45.3mm
    45.4mm
    45.46mm
    45.807 mm
    45.847 mm
    46 mm
    46.6mm
    47.752 mm
    47.76 mm
    47.9 mm
    47.95 mm
    48.5mm
    48.51mm
    49.784 mm
    50.927 mm
    50.94 mm
    51.1 mm
    51.53mm
    51.7mm
    51.74mm
    52.959 mm
    53.467 mm
    54.102 mm
    54.58mm
    54.66 mm
    56 mm
    56.032 mm
    56.159 mm
    57.29 mm
    57.302 mm
    57.31 mm
    57.45 mm
    58.2mm
    58.22mm
    59.74 mm
    60.6 mm
    60.62mm
    60.65 mm
    61.112 mm
    62.22 mm
    62.509 mm
    63 mm
    63.65 mm
    63.652 mm
    63.66 mm
    63.8 mm
    63.85 mm
    64 mm
    64.67mm
    64.7mm
    64.846 mm
    66.217 mm
    66.7mm
    67 mm
    67.92mm
    68.758 mm
    70.03 mm
    70.15 mm
    70.2 mm
    71 mm
    71.15mm
    71.297 mm
    71.3 mm
    72.77mm
    76.39 mm
    76.4 mm
    76.403 mm
    76.42 mm
    76.55 mm
    77.6mm
    77.62mm
    78.84mm
    79.58 mm
    80 mm
    81.48 mm
    81.483 mm
    82.9 mm
    84.1mm
    85 mm
    85.95 mm
    85.954 mm
    86.588 mm
    86.59 mm
    89.128 mm
    89.25 mm
    90 mm
    90.95mm
    91.668 mm
    91.67 mm
    92 mm
    95 mm
    95.49 mm
    95.504 mm
    95.52 mm
    95.65 mm
    96.65 mm
    97mm
    97.02mm
    97.03mm
    100 mm
    101.854 mm
    101.86 mm
    102 mm
    106 mm
    112 mm
    112.039 mm
    112.04 mm
    114.579 mm
    114.59 mm
    114.75 mm
    115 mm
    116.4mm
    118 mm
    121.28mm
    122 mm
    122.22 mm
    122.224 mm
    124.765 mm
    125 mm
    127.32 mm
    132 mm
    133.68mm
    140 mm
    140.05 mm
    141.224 mm
    142.595 mm
    142.6 mm
    150 mm
    152.78 mm
    152.95 mm
    160 mm
    170 mm
    171 mm
    180 mm
    190 mm
    190.98 mm
    200 mm
    204.978 mm
    224 mm
    280 mm
    320.853 mm
    335 mm
    450 mm
    For Shaft Type
    For Shaft Type
    Keyed
    Round
    For Use With
    For Use With
    Wire Rope
    Rope
    V-Belt Pulleys
    V-Belts
    For Belt Type
    For Belt Type
    V
    Round
    Flat
    Timing
    DFARS (Defense Acquisition Regulations Supplement)
    DFARS (Defense Acquisition
    Regulations Supplement)
    click to learn more about
    DFARS Specialty Metals
    COTS-Exempt
    learn more about DFARS Specialty Metals COTS-Exempt by pressing accesskey, i.
    RoHS (Restriction of Hazardous Substances)
    RoHS (Restriction of
    Hazardous Substances)
    RoHS Compliant
    RoHS Compliant with
    Exemptions
    Bearing Type
    Bearing Type
    Ball
    Without Bearing
    Sleeve
    Roller
    REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)
    REACH (Registration,
    Evaluation, Authorization
    and Restriction of Chemicals)
    REACH Compliant
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