TIMKEN CO — Director's Dealing 2010

May 12, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TIMKEN CO (TKR)
CIK: 0000098362
Period of Report: 2010-05-11

Reporting Person: EISENBERG GLENN A (Ex VP-Finance & Admin.)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-05-11	Common Stock	M	13525	$14.74	Acquired	64178	Direct
2010-05-11	Common Stock	S	11172	$32.88	Disposed	53006	Direct
2010-05-11	Common Stock	F	2353	$32.88	Disposed	50653	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-05-11	Employee Stock Option (right to buy)	$14.74	M	13525	Disposed	2019-02-02	Common Stock (13525)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	4662	Indirect

Footnotes

F1: 54,100 shares granted on 2/2/2009 (previously reported on a Form 4) vest in 25% increments per year.