- Initial Statement of Beneficial Ownership (3)

FORM 3	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES	OMB APPROVAL OMB Number: 3235-0104 Estimated average burden hours per response... 0.5
	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

1. Name and Address of Reporting Person ^*

Walker Donald L

2. Date of Event Requiring Statement (MM/DD/YYYY) 5/8/2012

3. Issuer Name and Ticker or Trading Symbol

TIMKEN CO [TKR]

(Last) (First) (Middle)

1835 DUEBER AVE SW

4. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director _____ 10% Owner
___ X ___ Officer (give title below) _____ Other (specify below)
Sr. VP - HR and OA /

(Street)

CANTON, OH 44706

(City) (State) (Zip)

5. If Amendment, Date Original Filed (MM/DD/YYYY)

6. Individual or Joint/Group Filing (Check Applicable Line)

_ X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	19199	D
Common Stock (restricted)	3250 ⁽¹⁾	D
Common Stock	5424	I	401(k)

*Table II - Derivative Securities Beneficially Owned ( e.g.* , puts, calls, warrants, options, convertible securities)**
1. Title of Derivate Security (Instr. 4)	2. Date Exercisable and Expiration Date (MM/DD/YYYY)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivate Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security		6. Nature of Indirect Beneficial Ownership (Instr. 5)
Employee stock options - right to buy	2/2/2010 ⁽²⁾	2/2/2019	Common Stock	3550	$0	D
Employee stock options - right to buy	2/8/2011 ⁽³⁾	2/8/2020	Common Stock	7200	$0	D
Employee stock options - right to buy	2/8/2012 ⁽⁴⁾	2/8/2021	Common Stock	8300	$0	D
Employee stock options - right to buy	2/9/2013 ⁽⁵⁾	2/9/2022	Common Stock	7300	$0	D
Dividend Equivalent Rights	12/31/2012 ⁽⁶⁾	12/31/2012	Common Stock	16	$0	D
Performance Based-Restricted Stock Units	12/31/2014 ⁽⁷⁾	12/31/2014	Common Stock	4400	⁽⁷⁾	D

Explanation of Responses:
( 1)	Grant of restricted shares in 2010 and 2011subject to vesting in 25 percent annual increments from date of grant.
( 2)	The option became exercisable in annual 25 percent increments beginning on 02/02/2010.
( 3)	The option became exercisable in annual 25 percent increments beginning on 02/08/2011.
( 4)	The option became exercisable in annual 25 percent increments beginning on 02/8/2012.
( 5)	The option becomes exercisable in annual 25 percent increments beginning on 02/09/2013.
( 6)	Reflects the accrual of contingent rights to receive shares of common stock which vest on 12/31/12 or under certain specified circumstances.
( 7)	Performance based restricted stock units are subject to certain performance criteria between 1/1/2012 and 12/31/2014 and if the criteria is met then they fully vest 3 years therefrom.

Reporting Owners
Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
Walker Donald L 1835 DUEBER AVE SW CANTON, OH 44706			Sr. VP - HR and OA

Signatures
Scott A. Scherff - Attorney in Fact		5/10/2012
^** Signature of Reporting Person		Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
*	If the form is filed by more than one reporting person, see Instruction 5(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).
Note:	File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.

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