Timken Co. on Tuesday named a new president of its China unit and announced other top management changes and promotions affecting 10 employees.

Peter M. Sproson was named president for the Canton companys China business, succeeding Leong Fang, who will retire at the end of the year after 28 years. Sproson will report to J. Ron Menning, senior vice president, Asia-Pacific. Sproson joined the company in 1978.

China is the second largest geographic sales region for $5.2 billion steel and bearings maker Timken.

Four new leaders were named in the Bearings and Power Transmission group, reporting to Christopher A. Coughlin, group president.

They are: John W. Beam, vice president for supply chain; Richard M. Boyer, vice president of manufacturing; Hans Landin, vice president of business advancement, and Michael P. Morgan, controller.

Beam joined Timken in 1987, working as an application engineer for several years before moving into bearing operations.

Boyer came to the company in 1984 as an associate engineer and held engineering jobs of increasing responsibility in technology function and manufacturing operations.

Landin of Sweden began in 1996 as an associate sales engineer in the companys Gothenburg sales office.

Morgan joined in 2005. He has held finance and marketing positions.

The company also named Andreas Roellgen as vice president of process industries and managing director of Europe. Roellgen joined Timken in 1997 in the companys European headquarters in Colmar, France.

Brian J. Ruel was named vice president off-highway, light vehicle systems and rail. Ruel joined Timken in 1984 as a sales engineer.

In another announcement, Ajay Das was named vice president of quality advancement, reporting to Coughlin. Das has worked for the company since 1992.

Sanjay Koul was named managing director and director of manufacturing operations in India. He joined Timken in 1990 as a production engineer in India.

Philip D. Fracassa was named senior vice president of planning and development, reporting to Glenn Eisenberg, executive vice president of finance and administration.