Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
Fracassa Philip D.
   2. Issuer Name and Ticker or Trading Symbol
TIMKEN CO [TKR] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
EVP & CFO
(Last)
(First)
(Middle)
4500 MT. PLEASANT ST. NW		 3. Date of Earliest Transaction (Month/Day/Year)
02/11/2018
(Street)

NORTH CANTON, OH 44720		 4. If Amendment, Date Original Filed(Month/Day/Year)
 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)		 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)		 4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		 5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)		 6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)		 7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock (1) 02/11/2018   A   1,588 A $ 0 33,016 D  
Common Stock 02/11/2018   F   527 D $ 43.88 32,489 D  
Common Stock (2) 02/12/2018   A   1,131 A $ 0 33,620 D  
Common Stock 02/12/2018   F   315 D $ 44.58 33,305 D  
Common Stock (3) 02/12/2018   A   6,238 A $ 0 39,543 D  
Common Stock 02/12/2018   F   1,743 D $ 45.23 37,800 D  
Common Stock               3,671 I 401(k)

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)		 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)		 5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)		 6. Date Exercisable and Expiration Date
(Month/Day/Year)		 7. Title and Amount of Underlying Securities
(Instr. 3 and 4)		 8. Price of Derivative Security
(Instr. 5)		 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)		 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)		 11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Restricted Share Unit $ 0 02/12/2018   A   4,525     (4) 02/12/2022 Common Stock 4,525 $ 0 4,525 D  
Restricted Share Unit $ 0 02/12/2018   A   11,300     (5) 12/31/2020 Common Stock 11,300 $ 0 11,300 D  
Employee Stock Options (right to buy) $ 44.65 02/12/2018   A   29,400   02/12/2019(6) 02/12/2028 Common Stock 29,400 $ 44.65 29,400 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Fracassa Philip D.
4500 MT. PLEASANT ST. NW
NORTH CANTON, OH 44720		       EVP & CFO  

Signatures

 /s/ Philip D. Fracassa   02/13/2018
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Represents vesting of 25% of the restricted share units granted on February 11, 2016.
(2) Represents vesting of 25% of the restricted share units granted on February 12, 2015.
(3) Represents award of shares pursuant to vesting of performance-based restricted share units granted on February 12, 2015.
(4) Grant of 4,525 time-based restricted share units that vest 25% per year.
(5) Grant of 11,300 performance-based restricted share units subject to certain performance criteria between January 1, 2018 and December 31, 2020.
(6) These options will become exercisable in annual 25% increments beginning on February 12, 2019.

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