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.

SPECIFICATIONS

• Fastener spacing (mm)19
• Fasteners (mm)5 FH
• Height (mm)146
• Maximum line (mm)12
• Minimum line (mm)3
• Spare PartsMP-1871
• Use with57 mm/75 mm/2.25″/3.00″/ratchets
• Weight (g)369