Ball bearing swivel bases feature dual rows of Delrin® ball bearings that swivel freely even underhigh loads. Bases include stand-up springs and a U-adaptor to accept a variety of appropriate blocks. The 144 is the standard configuration with a tall arm. It is ideal for mounting in the cockpit or for use on larger keelboats and small offshore boats that use 3.00 in (76 mm) plastic blocks.Delrin® is a registered trademark of E. I. du Pont de Nemours and Company or its affiliates.
DO NOT use Harken equipment for human suspension unless product is specifically certified and labeled for such use.
