Washer ZP 01.020.001 of the Front Travel ZM-60U/90U/120U

Washer ZP 01.020.001 of the Front Travel ZM-60U/90U/120U

The washer ZP 01.020.001 is a compact yet important part of the wheel assembly in the design of the modernized two-wheel front travel for grain loaders of the ZM series manufactured by Zavod Moroza. It is installed on the outer ends of the wheel axle OVI 01.023, sealing the internal space of the hub ZPT 1007 from the aggressive external environment.

In the process of improving the undercarriage, our designers abandoned the use of outdated stamped caps and separate washers that were used on classic single-wheel struts. These caps were prone to deformation and often failed to provide proper sealing of the assembly — they would fall off, get lost, and fail to hold the thrust washers. They were replaced by a more massive special washer ZP 01.020.001, which is rigidly attached to the axle using a bolt connection. This element successfully combines the role of a reliable mechanical support that holds the bushings from axial displacement with the function of a sealed protective screen (dust cover), which isolates internal bearing assemblies from the aggressive impact of the threshing floor environment.

Design Features of the Washer ZP 01.020.001

Structurally, the washer ZP 01.020.001 is a flat disc made of rolled steel — unlike the thin stamped caps of previous generations, which were easily crushed even by minor mechanical impacts, this part has a significant margin of rigidity and is absolutely not subject to vibrational deformations during the machine's operation.

To fix the washer on the outer end of the balancer wheel axle OVI 01.023, reliable fastening using two M8x25 bolts is provided — this method of rigid mounting also differs radically from the outdated "press-fit" cap mounting and guarantees that the part will not fly off its place even during the harshest maneuvers or strong impact loads on the undercarriage. Furthermore, the outer diameter of the washer is precisely calibrated and geometrically adapted to the contour of the hub ZPT 1007 — this allows it to seal the internal space of the bearing assembly as tightly as possible, creating a reliable mechanical barrier against the ingress of abrasive grain dust and dirt.

Repair and Maintenance Features Related to Washer ZP 01.020.001

During the inspection or scheduled maintenance of the wheel base, along with the protective washer ZP 01.020.001, the condition of the following adjacent elements must be checked:

• Wheel axle OVI 01.023
• Wheel hubs ZPT 1007
• Fastening elements (M8x25 bolts)

The thick-walled steel washer ZP 01.020.001 itself is practically immune to natural operational wear — it is extremely difficult to deform even during direct physical contact with an obstacle, but the main problem that should be monitored is the spontaneous loosening of the M8x25 mounting bolts due to constant vibrations during the grain loader's movement. If the bolts loosen, the massive washer moves away from the end of the ZPT 1007 hub or gets lost — and the assembly loses its tightness, as a result of which grain dust gets inside, which can quickly abrade the metal-ceramic bushings and the wheel axle journals. To avoid this scenario, it is sufficient to follow elementary maintenance rules — regular visual inspection of the assembly and periodic checking of the bolt connection tightness guarantee that the washer will reliably perform its functions. Given such simple control, this part will practically serve forever, reliably protecting bearing assemblies and ensuring long-lasting operation of the undercarriage without the risk of sudden breakdowns.

Buy the Front Travel Washer and Other Parts at Zavod Moroza

The production strategy of Zavod Moroza is based on the purposeful improvement of vulnerable agricultural machinery assemblies in accordance with the strict requirements of real-world operation. The washer ZP 01.020.001 is one example of this engineering approach, where a small part made of rolled steel with a bolt connection allowed for permanently solving the problem of dust and dirt ingress into wheel assemblies under vibrational loads.

We strictly control the quality of the metal and the precision of the part's geometry, which guarantees its perfect fit to the end of the hub ZPT 1007 — at our enterprise, you can order both individual washers and fully equipped hubs or axles assembled with all necessary original fastening hardware.

By choosing components from the direct manufacturer, you restore the correct kinematics of the undercarriage, improve the protection of internal assemblies from the destructive impact of abrasives, and ensure the stable, trouble-free operation of your grain loader for many future seasons.