75 HP Post Hole Digger Gearbox Part No. B5666 - 4 : 1 ratio APPLICATIONS SPECIFICATIONS Post Hole Diggers HOUSING: SHAFTS: GEARS: SEALS: BEARINGS: OIL: WEIGHT: INPUT SHAFT: OUTPUT SHAFT: 60-45-10 Nodular UNS G10450 UNS G51200 Triple Lipped Spring Loaded Tapered Roller EP-140, 86oz, 2.54L 111 lbs,50.5kg 1 3/8" x 6 spline 2" OD - 1/2" cross drilled SPARE PARTS REF PART No. DESCRIPTION 1 B1184 Input Shaft - 1 3/8" x 6 spline 2 B1185 Outer Cap 3 B773 Pinion Support Housing 4 B2953 Input Seal 5 B777 Outer Pinion cup & cone 6 B85 Inner Pinion Cup & Cone 7 B6951 Shim Gaskets (qty as req) 8 B6945 Top Cover 9 B99 Cup & Cone (2 req) 10 B6943 Output Gear 11 B6942 Output Shaft 12 B6941 Main Housing 13 B6944 Top Shim Gasket (qty as req) 14 B72 Output Seal 75 HP Post Hole Digger Gearbox