50 HP Post Hole Digger Gearbox Part No. B4666 - 3.18 : 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-90, 68oz, 2.01L 58 lbs,26.4kg 1 3/8" x 6 spline 2" OD - 1/2" cross drilled SPARE PARTS REF PART No. DESCRIPTION 1 B84 Top Housing 2 B99 Cup & Cone (2 req) 3 B1188 Top Shim Gakets (qty as req) 4 B83 Output Gear 5 B1192 Main Housing suit 1 3/8" x 6 spline Input Shaft 6 B82 Output Shaft 7 B72 Lower Seal 8 B85 Inner Pinion Cup & Cone 9 B1189 Pinion for models with 13/8" x 6 spline input shaft 10 B777 Outer Bearing suit 1 3/8" x 6 spline input shaft 11 B1190 Input Seal suit 1 3/8" x 6 spline input shaft 12 B1191 Front Cap suit 1 3/8" x 6 spline input shaft