Plain bearing - used for 12B, 12C, 12D, 12E

Plain bearing - ID 15 x OD 21 x T 4 mm

Plain bearing, stainless ball race, ID 15 mm, OD 21 mm, T 4 mm, for use with recent versions of goosenecks ref. 12B, 12C, 12D & 12E.

Also used for the upper bearing of a Marblehead swing rig with 14 mm dia mast tube and matching bearings blocks for the hull. Reference 139-UPPER and 139-3021 or 139-3022.

Older versions of 12B & 12C used a flanged bearing of the same basic sizes. See ref. BF-012B.