Chain provides reliable solution for a green power solution
January 1st 2007 A privately owned water mill on the river Ems in northern Germany has been adapted to produce hydropower electricity using its two paddle wheels to drive a generator. The driving energy of the paddle wheels is transferred to the generator via a chain and sprocket arrangement. Attractions of this design are its efficiency, easy installation and maintenance, robustness in short-term overload conditions. Only 500N were required to start producing electricity. Rexnord's triple stranded 48 B- 3 and 28 B-3 were selected for the two stage drive mechanism to ensure maximum power transmission and optimised service life. Also considered were the clearances between the inner and outer links to ensure effective lubrication penetration to prevent fretting corrosion and cold welding. After more than a year in usage, the mill owner reports that the Rexnord roller chains are not exhibiting any significant signs of wear. He is now hoping for frequent heavy rain – unlike his neighbours! More articles from Rexnord NV UK: | 
