b'32 mm Big Boat: End ControlsAbout Carbo ball bearing or ESP sleeve bearing end controls: see feature pages at beginning of this section.Carbo ball bearing end controls have an integrated bar for deadending control line.3170Assemblies secure to track, eliminating additional holes. Tough one-piece bases and cam arms are machined from a single piece of aluminum.3168 3169 3197CARBO BALL BEARING END CONTROLS Use E3250HB double-sheave ESP end controls for cabintop travelers where lines lead to the aft edge of the cabintop.Contact Harken to order special length track with mounting holes for E3250HB end controls.3174 31733173 and 3174 high-load controls allow 2:1 to 6:1 purchases on offshore boats with mainsails over 37 m 2(400 ft 2 ). Controls feature 57 mm Black Magic Big Boat ball/roller sheaves and high-load aluminum sideplates. 3212 3304 3213HIGH-LOAD END CONTROLS PINSTOPSE3230 E3250 E3256 E3250HBE3230.HL E3250.HLESP SLEEVE BEARING END CONTROLS113'