MOTORS PUMPS GEARBOXES VALVES CONTROLS NAHI, LLC - MAIN OFFICE : PROVIDING CUSTOMER DRIVEN SOLUTIONS - Planetary Final Drives Made in Germany Models Include: F Series FA Series

MOTORS PUMPS GEARBOXES VALVES CONTROLS NAHI, LLC - MAIN OFFICE : PROVIDING CUSTOMER DRIVEN SOLUTIONS - Track Drives Winches Wheel Drives Reel Drives Cutter Drives Milling Machines

MOTORS PUMPS GEARBOXES VALVES CONTROLS NAHI, LLC - MAIN OFFICE : PROVIDING CUSTOMER DRIVEN SOLUTIONS - Track Drives Winches Wheel Drives Reel Drives

MOTORS PUMPS GEARBOXES VALVES CONTROLS NAHI, LLC - MAIN OFFICE : PROVIDING CUSTOMER DRIVEN SOLUTIONS - Cutter Drives Milling Machines

MOTORS PUMPS GEARBOXES VALVES CONTROLS NAHI, LLC - MAIN OFFICE : PROVIDING CUSTOMER DRIVEN SOLUTIONS -

MOTORS PUMPS GEARBOXES VALVES CONTROLS NAHI, LLC - MAIN OFFICE : PROVIDING CUSTOMER DRIVEN SOLUTIONS - NOTE: F30K: X2 Mount F40 A: X3 Mount F40 B: X2 Mount F55 A: X2 Mount F55 B: X4 Mount F80: X4 Mount F80 A: X3 Mount F80 B: X5 Mount F100B: X5 Additional models F30K: X2 designation F40A: X3 designation F40B: X2 designation F55A: X2 designation F55B: X4 designation F80A: X3 designation F80B: X5 designation F100B: X5 designation

MOTORS PUMPS GEARBOXES VALVES CONTROLS NAHI, LLC - MAIN OFFICE : PROVIDING CUSTOMER DRIVEN SOLUTIONS -

MOTORS PUMPS GEARBOXES VALVES CONTROLS NAHI, LLC - MAIN OFFICE : PROVIDING CUSTOMER DRIVEN SOLUTIONS - Metal Face Seal Main Taper Roller Bearings Tip to root grinded Sun & Planetary Gears Nitrided Ring Gears Forged Steel Main Support CarrierSpindle Roller-Type Planetary Bearings Forged Steel Planet-Carriers Integrated Brake

MOTORS PUMPS GEARBOXES VALVES CONTROLS NAHI, LLC - MAIN OFFICE : PROVIDING CUSTOMER DRIVEN SOLUTIONS N 1 : 2,26 Function of the Main Taper Roller Bearings: Machine weight Travel forces in wheeled and crawler vehicles / Chain tightening forces Reaction forces from hydraulic working cylinders, e.g. in excavator applications Rope forces in winch applications Pull-/ Push- forces in dozer applications Drilling- & Cutting forces in drill-riggs, trenchers- or road - cutters Advantage of Taper Roller Bearing versus Ball Bearings Line contact of rollers versus Point contact in ball bearings gives low-level specific pressure Unexpected shock- or overloads create less damage from over-pressure compared to ball bearing

MOTORS PUMPS GEARBOXES VALVES CONTROLS NAHI, LLC - MAIN OFFICE : PROVIDING CUSTOMER DRIVEN SOLUTIONS - Grinding Process (Sun / Planetary Gears) Grinding on planetary- and sungears after hardening Grinding includes evolute profile, tooth root & bearing race for planet roller bearing All deformations from heat treatment process/quenching are 100 % taken away from gear Gear root fatigue life is improved due to smooth shape and perfect surface roughness Profile grinding tool Grinded tooth profile Grinded bearing race Gear SungearPlanetgear 1Planetgear 2Pinion - Sungear

MOTORS PUMPS GEARBOXES VALVES CONTROLS NAHI, LLC - MAIN OFFICE : PROVIDING CUSTOMER DRIVEN SOLUTIONS - Process: Ringgear material is forged IQT- steel, typically 42CrMo4V Part is keept in a Nitrogen atmosphere at 480 °C / 80h duration Nitrogen diffusion into material creates hardness-values of 60 HRC without need for quenching Benefit: Low process temperature and missing of quenching minimizes gear deformations High accuracy (Carraro drives use up to 7 planetaries are used ) guarantees even load distribution Nitrating Ring Gears

MOTORS PUMPS GEARBOXES VALVES CONTROLS NAHI, LLC - MAIN OFFICE : PROVIDING CUSTOMER DRIVEN SOLUTIONS - Gear-Grinding & Nitrading - Benefits Gear grinding and nitriding creates high accuracy for the gear - meshing contact Carraro planetary drives use up to 7 planet gears High accuracy guarantees even load distribution Measurement tests in 5 - planet carrier system showed differences < 3 % T1 T2 T = 100 % T = T1+T2+T3+T4+T5 Tmax / Tmin < 3 % T5 T3 T4

MOTORS PUMPS GEARBOXES VALVES CONTROLS NAHI, LLC - MAIN OFFICE : PROVIDING CUSTOMER DRIVEN SOLUTIONS - High-Quality Forged Steel Structural Parts Mechanical properties Standart Forged IQT - steel 42CrMo4V versus Standart Nodular Cast iron GJS

MOTORS PUMPS GEARBOXES VALVES CONTROLS NAHI, LLC - MAIN OFFICE : PROVIDING CUSTOMER DRIVEN SOLUTIONS - Integrated Static Brake Wet disc type - Spring applied - negative system Glyd-ring piston seals for high reliability