Manufacturer part #: 639
Use cam swivel bases when leads must rotate to face the trimmer. 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 639 is a simple swivel bases for main and jib sheets on very small boats or for control lines on boats of all sizes.
Use cam swivel bases when leads must rotate to face the trimmer. 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 639 is a simple swivel bases for main and jib sheets on very small boats or for control lines on boats of all sizes.
Technical Description
Swivel Bullseye Alum Base w/150 Cam & Spacers
1 15/16 in
75 mm
9.14 oz
259 g
1/8 in
3 mm
1/2 in
12 mm
1 1/32 in
26 mm
300 in
136 mm
