Front Travel Screw ZP 01.070 for ZM-60U/90U/120U

Front Travel Screw ZP 01.070 for ZM-60U/90U/120U

The front travel screw ZP 01.070 with a welded ratchet wheel (daisy wheel) is the main power shaft of the height adjustment mechanism for the support base of the ZM series (ZM-60U, ZM-90U, ZM-120U) and ZMB series (ZMB-90U, ZMB-120U) grain loaders. This part bears the static and dynamic mass of the front of the machine, responsible for the vertical movement of the inner fork and wheelbase relative to the unit's outer strut.

In the assembly's kinematic scheme, the screw forms a working pair with a special nut ZP 01.101 — when the handle is moved, the reversible pawl engages with the teeth of the ratchet wheel, transmitting torque to the shaft. The trapezoidal thread converts this rotational movement into linear travel, allowing the machine operator to precisely adjust the clearance of the feeders above the threshing floor surface for material intake or to raise the frame for safe transportation of the machine.

During the development of components for the new generation of grain loaders, the screw design was reinforced, and its geometry was adapted for increased loads. The shaft profile and the cut thread create a reliable margin of working travel, which is sufficient for deep lowering or high raising of the frame even on grounds with significant terrain variations. Although the screw was designed with the mass of modern heavy machines (such as the ZMB-120U) in mind, it retains mounting and thread compatibility with classic grain loaders of previous production runs.

Technical Specifications of the Front Travel Screw ZP 01.070

• Catalog Number: ZP 01.070
• Application: ZM-60U, ZM-90U, ZM-120U, ZMB-90U, ZMB-120U
• Thread Type: Trapezoidal, deep profile
• Main Structural Element: Welded ratchet wheel (daisy wheel)
• Compatibility: Zavod Moroza front travel modifications and classic grain loaders of other series
• Quantity per Unit: 1 pc.
• Country of Manufacture: Ukraine

The operational durability of the undercarriage lifting mechanism depends directly on the precision of its main screw shaft manufacturing. The ZP 01.070 shaft is machined from durable round rolled steel, after which a deep trapezoidal thread is formed on lathes with precise pitch adherence, ensuring smooth movement of the strut and high resistance to axial loads. The ratchet wheel (daisy wheel) is mounted on the shaft using special jigs, which guarantees its correct and uniform perpendicularity relative to the part's axis. Such reliable factory welding eliminates the slightest misalignment and runout during rotation, ensuring the drive pawl engages precisely into the teeth slots of the daisy wheel without the risk of jamming or handle slippage.

The screw geometry is fully calculated for the increased static and kinematic loads that occur during the lifting of the frame on massive new-generation loaders. The length of the threaded portion and the screw pitch create an increased working range, which is more than sufficient for deep lowering of the feeders to the surface or high lifting of the grain loader frame when maneuvering on threshing floors with uneven terrain. Due to strict adherence to standardized linear tolerances, this reinforced screw is universal and can be installed without additional modifications on both modern two-wheel undercarriage assemblies and classic single-wheel struts of previous series grain loaders.

Related Parts and Modification Options for Screw ZP 01.070

Replacing a power screw is rarely done in isolation from other elements of the lifting assembly. Since wear usually affects adjacent working surfaces, you can select all necessary parts at our facility according to factory specifications for a comprehensive mechanism repair:

• Special nut ZP 01.101
• Drive handle ZP 01.060
• Ratchet mechanism pawl ZP 01.401
• Inner fork ZP 01.040, which receives the shaft pressure
• Thrust bearings (8104), retaining rings, pins, and other fastening elements

Considering that many farms operate grain loaders after custom repairs with modified frames or non-standard wheelbases, we also offer custom manufacturing of the screw based on individual parameters. The factory's technological capabilities allow us to change the total shaft length or increase the length of its working threaded portion to expand the height adjustment range. If necessary, a custom thread profile can be cut, but in this case, the shaft must be ordered and supplied in a pair with a matching special nut to guarantee correct engagement and avoid rapid thread abrasion.

A separate option is changing the mounting type of the ratchet wheel (daisy wheel) to the shaft. In the standard version, the daisy wheel is rigidly welded to the screw, forming an inseparable monolithic structure. However, to simplify future maintenance, we can make this assembly detachable by machining the mounting seat on the screw and the corresponding hole in the daisy wheel to a square profile, or by machining a round seat with fixation via keyways. This solution allows for easy disassembly of the ratchet wheel from above for maintenance or part replacement. If such a profile or keyway seat is additionally welded, it creates an ultra-durable structure with maximum torsional resistance under any peak loads.

Buy Front Travel Screw ZP 01.070 for Grain Loaders at Zavod Moroza

You can order the front travel screw ZP 01.070 with a ratchet wheel directly at Zavod Moroza. Purchasing parts from the manufacturer guarantees precise compliance with blueprints, correct trapezoidal thread geometry, and reliable perpendicular centering of the daisy wheel, which also allows for quick replacement of a worn or deformed shaft without the need for additional part fitting or welding work during on-site installation.

We maintain a stable stock of ready-to-use screws and related assemblies in our warehouse, ensuring prompt order fulfillment and helping to avoid forced equipment downtime, which is especially important during peak operational periods. Contact our sales department to select components — we are experts in the undercarriages of grain loaders from various manufacturers and generations, and we guarantee that each part precisely matches your machine's specifications.