Elco Gearbox Complete Bearing Replacement Kit This kit is designed to replace all bearings in an Elco gearbox for the traditional long or short shaft gearboxes. SKU: 5009802750 This kit contains 12 Bearings, which are made up with the following; 2 x 6001ZZ Bearing 1 x 608ZZ Bearing 6 x 624ZZ Bearing 3 x 626ZZ Bearing If all bearings in your gearbox are replaced, you should be left with 2 spares, either 2 x 624ZZ or 2 x 626ZZ depending on which style Elco #1 Gear is in your gearbox.