TIMKEN CO — Director's Dealing 2013

May 10, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TIMKEN CO (TKR)
CIK: 0000098362
Period of Report: 2013-05-08

Reporting Person: Walker Donald L (Sr VP - HR and Org Advancement)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-05-08	Common Stock	M	3600	$22.67	Acquired	33610	Direct
2013-05-08	Common Stock	F	703	$56.41	Disposed	32907	Direct
2013-05-08	Common Stock	S	2897	$56.41	Disposed	30010	Direct
2013-05-08	Common Stock	M	3550	$14.74	Acquired	33560	Direct
2013-05-08	Common Stock	F	856	$56.41	Disposed	32704	Direct
2013-05-08	Common Stock	S	2694	$56.41	Disposed	30010	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2013-05-08	Employee Stock Option (right to buy)	$22.67	M	3600	Disposed	2020-02-08	Common Stock (3600)	Direct
2013-05-08	Employee Stock Option (right to buy)	$14.74	M	3550	Disposed	2019-02-02	Common Stock (3550)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	5483	Indirect

Footnotes

F1: 14,400 shares granted on 2/8/2010 (previously reported on a Form 4) vest in 25% increments per year.

F2: 14,200 shares granted on 2/2/2009 (previously reported on a Form 4) vested in 25% increments per year.