ZM 01.180 Cam Wheel Hub (Upgraded)

ZM 01.180 Cam Wheel Hub (Upgraded)

The upgraded ZM 01.180 cam wheel hub is a core support and drive element of the ZP 01.220 reverse gear mechanism, serving as the primary connecting link between the driving wheel and the power-transmitting half-axles of modern, high-efficiency ZM-60U, ZM-90U grain thrower series, and their equivalents.

The unit is engineered to meet rigorous requirements for increased load capacity and overall running gear service life. The part mounts onto the symmetric steel half-axles of the ZP 01.625 shaft, bearing the full static load from the weight of the grain thrower's rear frame section on its massive flange, as well as dynamic impacts encountered while navigating uneven threshing floors or warehouse asphalt surfaces.

During operation, the ZM 01.180 hub engages with the movable ZP 01.102 half-clutch, transmitting torque from the self-propelled gearbox chain drive to the machine's wheel. When towing or manually pushing the machine, the engagement disengages, and the hub rotates smoothly on internal cermet sleeve bearings around the stationary axis, entirely eliminating transmission drag and protecting internal gearbox gears from wear.

Technical Specifications of the Upgraded ZM 01.180 Hub

• Catalog number - ZM 01.180 (assembled - option 2) / ZM 01.180.001 (bare cast-iron casting).
• Application - modern ZM-60U, ZM-90U grain throwers, as well as a comprehensive symmetric reverse axle modernization kit for classic ZM-60 and ZM-60A machine series.
• Part type - driving wheel support-and-drive cam hub.
• Material - high-strength gray cast iron grade Sch 20 (DSTU/GOST 1412).
• Wheel disk mounting interface - reinforced square flange with 4 mounting holes for M12 bolts, threaded to match standard ZPT 1.6.2 (400 mm) wheels or large 500 mm wheels (from OVS-25 cleaners).
• Internal sleeve bearings - two porous cermet bushings measuring 30x40x25 mm (GOST 2795-2001).
• Lubrication system for the sliding assembly - integrated threaded port directly on the neck housing to accommodate a straight M10x1 grease zerk fitting (GOST 19853-74).
• Quantity per symmetric reverse axle bridge - 2 pcs. (one hub per left and right drive half-axle).

Design Modifications and Engineering Enhancements of the Grain Thrower Hub

The upgraded version of the ZM 01.180 hub incorporates multiple improvements aimed at simplifying equipment maintenance and preventing common running gear failures previously observed on legacy asymmetric axles:

1. Integrated Locating Shoulder (Wheel Centering Collar)

A primary distinguishing feature of the modern hub is a specialized circular raised collar at the center of the square flange. On legacy hub models, the flange was completely flat, causing the wheel disk to be located and centered exclusively via four M12 bolts. During vibration, even minor nut loosening frequently caused mounting holes on the disk to elongate into an ellipse, generating radial runout and causing the wheel to wobble. The new centering collar on the ZM 01.180 hub fits snugly into the wheel disk's central bore, absorbing primary radial loads and shear forces, thereby guaranteeing ideal wheel base concentricity and unloading the mounting bolts.

2. Extended Neck and Transition to 25 mm Long Bushings

To ensure stable operation under the weight of upgraded, heavier machinery (which in this case features large 500 mm wheels for enhanced mobility), engineers increased the hub's overall length. Instead of classic 20 mm long bushings (NEN 400003), two reinforced 30x40x25 mm cermet bushings are press-fitted inside the hub. Expanding the sliding bearing width by 25% substantially broadens the contact area with the shaft, reducing specific pressure within the friction zone, minimizing radial play, and significantly extending the wheel assembly's service life even during intensive long-distance towing.

3. Efficient Direct Lubrication Without Excess Dismantling

Previously, servicing often required completely dismantling the running gear, removing wheel disks, applying grease, and verifying that the lubricant actually reached internal sliding components. In the upgraded ZM 01.180 hub, this process is streamlined and perfected-consistency grease (solidol or litol) is easily injected via a standard grease gun through the factory zerk fitting directly into the internal cavity between the 25 mm bushings. The grease fills the internal chamber and evenly impregnates the porous cermet structure right on-site, enabling rapid routine axle maintenance during peak seasons without requiring disk removal or half-axle disassembly.

4. Optimal Cam Geometry and Full Backward Compatibility

The hub's end-face teeth-cams feature a precise, geometrically refined profile that eliminates backlash during torque transmission. Despite the refined casting shape, designers preserved complete component interchangeability-the new ZM 01.180 hub meshes effortlessly with classic ZP 01.102 half-clutches from prior production years, facilitating both major overhauls of modern grain throwers and modernization of legacy ZM-60 and ZM-60A models.

Installation and Maintenance Recommendations for the Hub

To ensure trouble-free operation of the upgraded unit, our plant's specialists recommend adhering to basic installation and care guidelines.

By default, the upgraded ZM 01.180 hub ships fully pre-assembled-with 30x40x25 mm cermet bushings professionally press-fitted using our factory hydraulic press. This optimal approach guarantees ideal sliding bearing alignment without skewing, relieving you of assembly burdens. However, if your farm already possesses new bushings and you prefer to purchase a bare cast-iron hub casting, we can supply the part unequipped. In such cases, remember that porous cermet is a relatively brittle material highly sensitive to sharp impacts; hammering bushings into the hub during independent installation is strictly prohibited, as it will inevitably cause edge chipping or collar deformation. Installation requires exclusively smooth, careful pressing via a screw or hydraulic press, preceded by cleaning the seating bore and applying a thin layer of oil. Furthermore, consistency grease must be fed through the hub's zerk fitting regularly-before and after the operating season-protecting the porous structure from heat-induced drying and safeguarding the shaft from wear. Although the centering collar on the flange aids tight disk seating, checking the torque on the four M12 wheel bolts remains mandatory; uniform cross-bolting eliminates disk skewing.

Buying the Upgraded ZM 01.180 Hub from Zavod Moroza

Zavod Moroza is a full-cycle manufacturer. We independently cast Sch 20 grade cast-iron components in our own foundry workshops and execute finish machining on advanced CNC lathe-milling centers. Purchasing the ZM 01.180 hub directly from us guarantees a part featuring flawless centering collar geometry, a precise threaded port for the zerk fitting, and perfectly milled working cams.

Standard delivery supplies this hub fully assembled-featuring professionally press-fitted 25 mm long cermet bushings and an installed grease zerk, enabling immediate installation without preparatory work. Nonetheless, upon custom request, we can supply the hub as a bare cast-iron casting without bushings for independent assembly.

Contact our managers for a free technical consultation! We will assist in verifying component compatibility with your specific machinery modification, supplement your order with necessary accompanying parts (fasteners, springs, rings, or half-clutches), and arrange prompt delivery so your grain thrower operates flawlessly and without downtime.