<ACCESSION-NUMBER>0000098362-18-000081 <TYPE>8-K <PUBLIC-DOCUMENT-COUNT>1 <PERIOD>20180727 <ITEMS>8.01 <FILING-DATE>20180727 <DATE-OF-FILING-DATE-CHANGE>20180727 <FILER> <COMPANY-DATA> <CONFORMED-NAME>TIMKEN CO <CIK>0000098362 <ASSIGNED-SIC>3562 <IRS-NUMBER>340577130 <STATE-OF-INCORPORATION>OH <FISCAL-YEAR-END>1231 </COMPANY-DATA> <FILING-VALUES> <FORM-TYPE>8-K <ACT>34 <FILE-NUMBER>001-01169 <FILM-NUMBER>18975458 </FILING-VALUES> <BUSINESS-ADDRESS> <STREET1>4500 MT. PLEASANT ST. NW <CITY>NORTH CANTON <STATE>OH <ZIP>44720-5450 <PHONE>(234) 262-3000 </BUSINESS-ADDRESS> <MAIL-ADDRESS> <STREET1>4500 MT. PLEASANT ST. NW <CITY>NORTH CANTON <STATE>OH <ZIP>44720-5450 </MAIL-ADDRESS> <FORMER-COMPANY> <FORMER-CONFORMED-NAME>TIMKEN ROLLER BEARING CO <DATE-CHANGED>19710304 </FORMER-COMPANY> </FILER>