ZM 01.180 Hub + ZP 01.102 Half-Clutch (Working Drive Disengagement Pair)

ZM 01.180 Hub + ZP 01.102 Half-Clutch (Working Drive Disengagement Pair)

The ZM 01.180 cam wheel hub and the sliding ZP 01.102 half-clutch form the core functional pair within the reverse gear disengagement mechanism ZP 01.220 for ZM-60 and ZM-60A grain thrower series, as well as modern ZM-60U and ZM-90U modifications. This kit directly governs the engagement and disengagement of the driving wheels with the machine's drive transmission.

Under operational conditions, spring pressure forces the cams of both components to lock tightly into engagement, transmitting torque from the gearbox to the wheel base. During transport or maneuvering across the threshing floor, the half-clutch is pulled outward to sever the connection with the wheel—allowing the hub to spin freely on the stationary steel shaft, entirely eliminating parasitic load from the self-propelled gearbox gears.

We Strongly Recommend Replacing the Grain Thrower Hub and Half-Clutch as a Matched Pair

Throughout prolonged operation, the cam profiles of both the hub and half-clutch endure significant alternating and torsional stresses. Continuous jerking during heavy machine startups causes the working rectangular faces of the cams to gradually round off, slip, or chip. Attempting to replace only a single worn component prevents the cams from achieving a flush planar contact surface. Instead, loads distribute unevenly across isolated touchpoints, triggering frequent spontaneous clutch disengagement during travel, accelerated wear on the new part's mating surfaces, and rapid failure of the entire running gear assembly.

Installing factory-calibrated ZM 01.180 hubs alongside ZP 01.102 half-clutches together guarantees flawless engagement fit, zero backlash, and uniform force transmission.

Technical Specifications of the Grain Thrower Reverse Cam Pair

ZM 01.180 Wheel Hub (With Cams):

• Catalog number: ZM 01.180.
• Manufacturing material: Gray cast iron grade Sch 20 (GOST 1412-79).
• Component weight: 3.318 kg.
• Design features: Heavy-duty square flange featuring four through-holes for M12 bolts to mount the wheel disk. The working face features 4 massive cams with deep interlocking grooves. The central 40 mm bore is smooth and configured for pressing in cermet bushings.

ZP 01.102 Half-Clutch (Drive Disengagement Cam Clutch):

• Catalog number: ZP 01.102.
• Manufacturing material: Gray cast iron grade Sch 20.
• Component weight: 1.79 kg.
• Design features: Sliding component featuring a flat face cast with 4 rectangular power cams. The opposite side features two convenient cast lever handles for manual control. The central bore contains two keyways for 8x7 mm prismatic keys to slide along the shaft, while the cylindrical body includes a threaded port to mount the ZP 01.632 latch guide bushing.

Essential Complementary Component Upgrade

The inner bore of the ZM 01.180 cam hub does not make direct contact with the shaft metal—two NEN 400003 cermet bushings (30x40x20 mm dimensions) are pressed into the hub. These bushings are fabricated via powder metallurgy sintering, resulting in a porous structure that acts like a durable oil-soaked sponge. Frictional heat generated during towing forces lubricant out of the pores, ensuring smooth wheel rotation on the shaft and protecting the steel half-axle from critical wear.

Important reminder: cermet is a relatively brittle material highly sensitive to sharp impacts. When replacing bushings independently, avoid driving them into the hub with a hammer, as this fractures the edges or deforms the pores. Pressing in NEN 400003 bushings requires careful, smooth installation using a hydraulic or screw press. You can order the ZM 01.180 hub from our plant with the bushings already professionally press-fitted.

Alternative extended-seat cermet bushings measuring 30x40x25 mm are also common on the market. Standard factory configurations utilize original 20 mm bushings designed to leave a small internal cavity between them inside the hub, serving as an internal lubricant reservoir that feeds the assembly during prolonged rotation. Installing 25 mm bushings reduces or completely fills this cavity; while both variants function operationally, we advise consulting our specialists regarding installation and maintenance specifics when mixing alternative parts to guarantee a flawless shaft fit.

Complete Reverse Overhaul Kit + Compatibility

At the customer's request, beyond the core working pair (hub + clutch), we can expand the order into a comprehensive repair kit containing:

• Two NEN 400003 cermet bushings
• Heavy-duty spring ZP 01.626
• Support washer ZM 01.435
• Complete latch assembly ZP 01.631 (guide bushing, small spring, and release button with deep knurled threading)

Given the long manufacturing history of ZM-60 grain throwers across various plants and subsequent field overhauls, adjacent running gear components may diverge from original blueprints. For instance, keyway lengths on the ZP 01.625 shaft for clutch sliding can vary, and some axles may lack the spherical latch detent pocket. Similarly, while hub flanges feature a standardized 4-hole pattern, different machine generations mount varied disks—ranging from classic 400 mm ZPT 1.6.2 rubber-tired wheels to reinforced 500 mm wheels.

When planning to purchase a broader set of components (including shafts, fasteners, or wheel blocks), you are always welcome to utilize our complimentary telephone consultation prior to placing your order. Because grain throwers feature varying production years, manufacturing plants, and modifications across different farms, adjacent running gear elements can possess unique traits. Overall, our spare parts are fully interchangeable and easily adapted, but a quick verification of linear dimensions with our specialists helps assemble an exact match for your specific machine on the first try. Simply call us—we will help select all components to ensure the upgraded assembly installs smoothly, rapidly, and drops into place without requiring additional fitting.

Buying the ZM 01.180 Hub and ZP 01.102 Half-Clutch from Zavod Moroza

In-house foundry and machining facilities allow Zavod Moroza to maintain consistently high part quality. We manufacture cam hubs and half-clutches from high-strength Sch 20 cast iron with strict adherence to cam geometric profiles, guaranteeing reliable engagement without slipping.

Contact our sales department—we will thoroughly address all technical inquiries, supply the hub with pre-pressed bushings if needed, or assemble a complete supplementary fastener and spring kit, ensuring rapid spare part delivery directly to your agricultural operation!