Complete Left Half-Axle Assembly ZM120 06.120.000-05 (ZM-120U Travel Differential)

Complete Left Half-Axle Assembly ZM120 06.120.000-05 (ZM-120U Travel Differential)

The ZM120 06.120.000-05 complete left half-axle assembly is an assembled and ready-to-install power unit for the left side of the ZM120 06.100.000-05 central travel differential. It is engineered for ZM-120U self-propelled grain throwers manufactured by Zavod Moroza and is also applied during the modernization and retrofitting of running systems on alternative grain thrower modifications when transitioning to a gearless drive layout featuring an independent gearmotor.

The unit transmits torque from the internal planetary mechanism of the differential directly to the left-side travel axle drive. Supplied in factory assembly complete with a half-axle bevel gear (z=28), prismatic key, and clamping set screw, this package enables rapid replacement of a worn shaft without requiring separate selection, installation, and key-pinning of the gear in the workshop.

Technical Specifications of the ZM120 06.120.000-05 Left Half-Axle

• Catalog number - ZM120 06.120.000-05
• Application - ZM120 06.100.000-05 travel differential for ZM-120U grain throwers and their gearmotor-equipped modifications
• Factory unit composition - long left half-axle shaft ZM120 06.120.001-05, half-axle bevel gear ZM 07.603-05 (z=28, module m=3.5), 8x7x25 prismatic key, M8x12 set screw
• Shaft material - structural steel with mandatory hardening (heat treatment), precision turning, and grinding of seating journals
• Shaft seating diameter - Ø30 mm (for 180206 ball bearings, 1-30x52-1 oil seal within the ZM120 01.460.05-05 sprocket with cover, and 11206 double-row spherical bearing within the H026.058 housing)
• Connection type - dual-sided keyed connection (8x7 keyways on both ends of the shaft)
• Quantity per machine - 1 pc.
• Country of manufacture - Ukraine

Design Features of the Complete ZM-120U Travel Differential Left Half-Axle

The shaft is manufactured from quality steel featuring mandatory hardening and high-precision grinding of seating surfaces. Thermal treatment ensures high torsional strength and prevents deformation or crushing of keyway walls during reversals and peak loads. Its Ø30 mm seating journal is machined to precise tolerances for the double 180206 bearing package inside the ZM120 01.460.05-05 drive sprocket, while the ground surface prevents premature wear on the working lip of the 1-30x52-1 oil seal and maintains oil bath sealing integrity.

The unit design ensures secure fastening of the half-axle bevel gear. On the stepped inner end of the shaft, the ZM 07.603-05 bevel gear (z=28) mounts onto an 8x7x25 key and is additionally locked in place by an M8x12 set screw. The hardened shaft metal combined with the keyed lock guarantees backlash-free force transmission from the ZM 07.605 planet gears and eliminates axial gear shifting under high loads during grain thrower turns.

Unlike the short right half-axle operating with an elastic coupling, the left half-axle is a continuous long shaft extending from the differential directly to the left wheel hub. Along its path, the shaft passes through intermediate H026.058 bearing support assemblies (featuring an 11206 double-row spherical bearing), and its outer end featuring an 8x7 keyway enters the wheel hub, providing direct and reliable torque transmission to the running gear.

Associated Components and Adjustment for the ZM-120U Differential Left Half-Axle

For stable half-axle operation within the planetary drum, precisely adjusting the bevel gear mesh and eliminating axial play is essential. Alongside the complete half-axle from Zavod Moroza, you can order:

• A set of compensation (adjustment) shims of varying thicknesses for the 30 mm shaft to precisely set the bevel gear mesh
• ZM120 01.460.05-05 sprocket with cover complete with 180206 bearings and oil seal
• ZM120 06.100.007 clamping cover and 1-30x52-1 reinforced oil seal
• H026.058 bearing housing featuring the H.026.163 cover and 11206 spherical bearing for external half-axle support

Buying the Complete ZM-120U Differential Left Half-Axle from Zavod Moroza

By ordering the complete left half-axle directly from Zavod Moroza, you receive a ready-to-install unit featuring strict adherence to all technological tolerances, correct steel hardening, and precise keyway geometry.

Contact our sales department via the provided phone numbers or submit an inquiry on our website. Our engineers will gladly consult you regarding shim selection for your specific machinery and ensure prompt dispatch of spare parts via Nova Poshta directly from our nearest warehouse!