2101-2202120 Elastic Coupling (ZM-120U Travel Axle Drive)

2101-2202120 Elastic Coupling (ZM-120U Travel Axle Drive)

The 2101-2202120 elastic coupling is a resilient connecting element of the travel axle drive with the ZM120 06.100.000-05 differential, designed to transmit torque from the short drive shaft of the gearmotor to the right long ZM120 06.130.000 shaft. It is utilized on self-propelled grain throwers of the ZM-120U series manufactured by Zavod Moroza, as well as during the modernization and retrofitting of running systems on other grain thrower series when transitioning to a gearless drive layout.

The coupling is installed between the intermediate shaft ZM120 06.140.000 connecting flange and the drive gearmotor flange. The application of a resilient rubber-metal block protects the running axle kinematics from severe dynamic shocks, dampens torsional vibrations during startup or unit reversal, and compensates for minor angular misalignments of the connected shafts.

Technical Specifications of the 2101-2202120 Elastic Coupling

• Catalog number - 2101-2202120 (operates with ZM120 06.140.000 connecting flanges).
• Application - drive for the right ZM120 06.130.000 shaft of the travel axle with differential for ZM-120U grain throwers and their gearmotor-equipped modifications.
• Purpose - resilient torque transmission, shock load damping, and compensation for mounting shaft misalignment.
• Material - massive vulcanized rubber block with pressed-in steel sleeves for mounting bolts.
• Fastening method - M10x40 bolts (GOST 7798-70) with spring lock washers and M10 nuts through the connecting flange holes.
• Quantity per machine - 1 pc.
• Country of manufacture - Ukraine / standardized factory configuration component.

Design Features and Advantages of Using the Elastic Coupling

The rubber-metal mass effectively dampens torsional vibrations and peak shock loads. During gearmotor startup, changes in direction of travel, or drive wheel slippage on uneven threshing floors, the resilient coupling element absorbs dynamic jolts-protecting the central differential gears and gearmotor elements from premature wear and tooth chipping.

The assembly design compensates for minor mounting and angular deviations between shafts. The resilient deformation of the rubber block smooths out insignificant angular misalignments and axial displacements caused by elastic deflections of the grain thrower frame when moving across uneven surfaces.

The use of the standardized 2101-2202120 element ensures high maintainability of the assembly. The standardized coupling design fastens directly to the ZM120 06.140.000 flanges, enabling quick and uncomplicated replacement of a worn rubber block without the need to dismantle the entire travel axle.

Associated Components for Drive Assembly and Repair

When replacing the 2101-2202120 elastic coupling or overhauling the right span of the travel axle, the following components are typically ordered alongside:

• ZM120 06.140.000 connecting flange
• ZM120 06.130.000 complete right shaft
• UCP 206 pillow block bearing
• Complete ZM120 06.100.000-05 travel differential
• M10x40 mounting bolts, M10 nuts, and size 10 spring lock washers

Buying the 2101-2202120 Elastic Coupling from Zavod Moroza

By ordering the 2101-2202120 elastic coupling and connecting flanges directly from Zavod Moroza, you receive verified components with exact center-to-center hole alignment, guaranteeing easy installation and reliable operation of the travel axle drive.

Contact our sales department via the provided phone numbers or submit an inquiry on our website. Our engineers will assist you in flawlessly selecting components for your grain thrower modification and ensure prompt order dispatch directly from the manufacturer's warehouse!