Bearing specialist NSK has worked with an unnamed international beverage manufacturer to solve a problem of conveyor failures at one of its production plants. By changing to NSK Moulded-Oil mounted-unit inserts, the drinks producer has overcome repeated problems of premature insert failures on the drive system of four vital sorting conveyors. The move has improved service life, leading to an annual saving of more than €5,000 (US$5,726), claims NSK.
At the beverage canning plant, cleaning processes comprising a mix of water and chemicals were destroying the bearing seals and washing out the grease pack on the company’s existing mounted units. As a result, the inserts within the mounted units had to be replaced every five to six months, and re-greased every three weeks. After a thorough review of the application, NSK’s engineers concluded that a switch to Moulded-Oil mounted-unit inserts would work.
NSK-mounted units comprise two basic components: the insert and the housing. Each unit consists of a sealed single-row ball bearing with spherical external diameter and extended inner ring mounted in a pillow block or flanged housing. The spherical fit accommodates any initial misalignment.
Importantly, the lubricant within these inserts is durably incorporated inside a stable carrier medium, namely an oil-impregnated polyolefin resin. This type of lubricant cannot be washed away by liquids or steam, and prevents the ingress of contamination.
More information from NSK Deutschland GmbH, Harkortstrasse 1540880 Ratingen Germany. Tel: 49 2102 4810.Website: www.nskeurope.com