<SEC-DOCUMENT>0000098362-12-000106.txt : 20120807
<SEC-HEADER>0000098362-12-000106.hdr.sgml : 20120807
<ACCEPTANCE-DATETIME>20120807145627
ACCESSION NUMBER:		0000098362-12-000106
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20120807
FILED AS OF DATE:		20120807
DATE AS OF CHANGE:		20120807

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TIMKEN CO
		CENTRAL INDEX KEY:			0000098362
		STANDARD INDUSTRIAL CLASSIFICATION:	BALL & ROLLER BEARINGS [3562]
		IRS NUMBER:				340577130
		STATE OF INCORPORATION:			OH
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1835 DUEBER AVE SW
		CITY:			CANTON
		STATE:			OH
		ZIP:			44706-2798
		BUSINESS PHONE:		3304713078

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	TIMKEN ROLLER BEARING CO
		DATE OF NAME CHANGE:	19710304

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			CREEL DIANE C
		CENTRAL INDEX KEY:			0000904698
		STATE OF INCORPORATION:			NY
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-01169
		FILM NUMBER:		121012919

	MAIL ADDRESS:	
		STREET 1:		249 BAY SHORE AVENUE
		STREET 2:		N/A
		CITY:			LONG BEACH
		STATE:			CA
		ZIP:			90803
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2012-08-07</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000098362</issuerCik>
        <issuerName>TIMKEN CO</issuerName>
        <issuerTradingSymbol>TKR</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000904698</rptOwnerCik>
            <rptOwnerName>CREEL DIANE C</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1835 DUEBER AVE SW</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>CANTON</rptOwnerCity>
            <rptOwnerState>OH</rptOwnerState>
            <rptOwnerZipCode>44706</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes></footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Diane C. Creel</signatureName>
        <signatureDate>2012-08-07</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>attach_1.htm
<TEXT>
<HTML><BODY><PRE>POWER OF ATTORNEY





I, Diane C. Creel, a Director of The Timken Company, hereby constitute

and appoint William R. Burkhart, Scott A. Scherff, Hansal Patel and Nathan D. Bailey each of them, my true and lawful attorney or attorneys-in-fact, with full power of substitution and resubstitution, for me and in my name, place and stead, to sign on my behalf any Forms 3, 4, 5 or 144 required pursuant to the Securities Act of 1933 or the Securities Exchange Act of 1934, and to sign any and all amendments to such Forms 3, 4, 5 or 144, and to file the same with the Securities and Exchange Commission, granting unto said attorney or attorneys-in-fact, and each of them, full power and authority to do and perform each and every act and thing whatsoever that any of said attorney or attorneys-in-fact or any of them or their substitutes, may deem necessary or desirable, in his/

her or their sole discretion, with any such act or thing being hereby ratified and approved in all respects without any further act or deed whatsoever.







Executed this 7th day of August 2012





      /s/ Diane C. Creel



















</PRE></BODY></HTML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
