Cape Cod, MA


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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.


Height (in)5 3/4 in

Height (mm)146 mm

Weight (g)369 g

Weight (oz)13 oz

Minimum line Ø (mm)3 mm

Minimum line Ø (in)1/8 in

Maximum line Ø (mm)12 mm

Maximum line Ø (in)1/2 in

Fastener spacing (mm)19 mm

Fastener spacing (in)3/4 in

Fasteners (mm)5 FH mm

Fasteners (in)#10 FH in

Use with57 mm/75 mm/2.25"/3.00"/ratchets 

Standard Cam Base — Swivel

SKU: 144