56mm Flanged Light Series 20 slewing rings
...are so called because of the total assembled height and usual ball size. This style of slewing ring is made by most of the major manufacturers, and can be considered interchangeable in most cases. They maintain a 56mm section height across a broad range of diameters.
NBC stocks a wide range of standard light series bearings with normal clearance and seal styles which will be suitable for a wide variety of applications.
Modified units (e.g. with Viton seals, steel or ball spacers, non-standard bolt patterns), higher precision bearings or those with special lubricants may be stocked or can either be imported to order, or in some cases modified in our own workshops.
On sub pages we have tabulated the basic dimensions for each series. The complete data sheet is available for download, and individual bearing drawings can be downloaded in PDF format (an ongoing project!) by clicking on the specific bearing number in the dimension chart.
Interchange and load carrying information is also provided.
For professional assistance contact the NBC Slewing ring experts on +44 1952 222300, fax +44 1952 242938 or e-mail slewingrings@nbcgroup.co.uk