<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
  <headerData>
    <submissionType>144</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001598539</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0000098362</issuerCik>
      <issuerName>TIMKEN CO</issuerName>
      <secFileNumber>001-01169</secFileNumber>
      <issuerAddress>
        <com:street1>4500 MT. PLEASANT ST. NW</com:street1>
        <com:city>NORTH CANTON</com:city>
        <com:stateOrCountry>OH</com:stateOrCountry>
        <com:zipCode>44720-5450</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>(234) 262-3000</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Fracassa Philip D.</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Officer</relationshipToIssuer>
        <relationshipToIssuer>EVP &amp; CFO</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Georgeson Securities Corp</name>
        <address>
          <com:street1>144 Fernwood Ave</com:street1>
          <com:city>EDISON</com:city>
          <com:stateOrCountry>NJ</com:stateOrCountry>
          <com:zipCode>08837</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>5000</noOfUnitsSold>
      <aggregateMarketValue>415300.00</aggregateMarketValue>
      <noOfUnitsOutstanding>70134716</noOfUnitsOutstanding>
      <approxSaleDate>08/15/2024</approxSaleDate>
      <securitiesExchangeName>NYSE</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <acquiredDate>08/15/2024</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>The Timken Company</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>5000</amountOfSecuritiesAcquired>
      <paymentDate>08/15/2024</paymentDate>
      <natureOfPayment>Services Rendered</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Philip Fracassa</name>
        <address>
          <com:street1>4500 Mt. Pleasant St. NW</com:street1>
          <com:city>North Canton</com:city>
          <com:stateOrCountry>OH</com:stateOrCountry>
          <com:zipCode>44720</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common stock</securitiesClassTitle>
      <saleDate>08/13/2024</saleDate>
      <amountOfSecuritiesSold>5000</amountOfSecuritiesSold>
      <grossProceeds>403844.58</grossProceeds>
    </securitiesSoldInPast3Months>
    <remarks>Under securities sold, the date acquired &amp; date of payment are various.</remarks>
    <noticeSignature>
      <noticeDate>08/15/2024</noticeDate>
      <signature>Conformed Signature on File</signature>
    </noticeSignature>
  </formData>
</edgarSubmission>
