Ball bearing swivel bases feature dual rows of Delrin® ball bearings that swivel freely even under high 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.
| Weight (g) | 369 g |
| Weight (oz) | 13 oz |
| Maximum line Ø (mm) | 12 mm |
| Maximum line Ø (in) | 1/2 in |
| Fasteners (mm) | 5 FH mm |
| Fasteners (in) | #10 FH in |
| Minimum line Ø (mm) | 3 mm |
| Minimum line Ø (in) | 1/8 in |
| Height (mm) | 146 mm |
| Height (in) | 5 3/4 in |
| Fastener spacing (mm) | 19 mm |
| Fastener spacing (in) | 3/4 in |
| Use with | 57 mm/75 mm/2.25"/3.00"/ratchets |
Delrin® is a registered trademark of E. I. du Pont de Nemours and Company or its affiliates.
