17-4 stainless roller bearings ride in metal cages preventing efficiency robbing distortion and allowing more bearings for the same diameter. Large diameter spindles form a large load carrying surface. Stainless ball bearings carry vertical loads of drum. Gears on winches from 42 feature 4 pawls to minimize back lash, winches from 48 feature roller bearings in every gear. Self tailers have a ball bearing roller on feeder arm to reduce friction.
Larger winches use two gears to drive drums.
High load gears on winches form 32 are 17-4 stainless for strength and durability. All self tailers have self adjusting jaws. The A, or C in the last three letters in the part number stand for Aluminum and Chrome respectively. Non Self-Tailing Winches Part Power Ratio 1 Power Ratio 2 Base Dia. Electric winches are easily installed being wired with 2 switches and a control box that mounts down below.