BHS Mixer Spare Parts: Synchronous Coupling Flexible Connection & Main Drive Rubber Block

This component is designed for the transmission system of BHS twin-shaft batch compulsory mixers (DKX/DKXS series), covering popular capacities such as 3.0 m³, 4.0 m³, and 4.5 m³.

1. BHS Main Drive Rubber Block (Elastic Element)

This is a high-elasticity component made of high-quality, oil-resistant, and wear-resistant synthetic rubber (Natural Rubber or Polyurethane). It serves as the flexible buffer core within the mixer's drive train, fitted between the gearbox output and the mixing shaft flange (elastic jaw coupling).

• Primary Function: Absorbs heavy alternating shock loads and vibrations generated during the mixing of high-grade concrete and hard aggregates. By deforming elastically, it compensates for axial, radial, and angular misalignments between the gearbox and the mixing shaft, thereby protecting the main motor, gearbox gears, and shaft bearings, extending overall service life.

• Reference / Replacement Part Numbers:

  • 910284602: BHS OEM part number, widely used in DKX/DKXS series.

  • 910304800: Common aftermarket number for DKXS models.

• Compatible Models: DKX/DKXS series twin-shaft mixers (3.0, 4.0, 4.5 cubic meter batch mixers).

This refers to the transmission coupling assembly connecting the input shafts of the two main gearboxes on a BHS twin-shaft mixer. It ensures mechanical synchronization of the two mixing shafts.

• Primary Function: Physically couples the input ends of the two gearboxes (often via belt drive or elastic coupling) to enforce identical angular velocity and opposite rotation. This prevents phase shifting or blade collision ("blade clash") caused by uneven material loads. The elastic element within this assembly also dampens impact during start-up and direction changes.

• Application: Suitable for BHS DKX/DKXS series 3.0 m³, 4.0 m³, and 4.5 m³ twin-shaft compulsory concrete mixers.

• Regular Inspection: The rubber block is a critical wear item. It is susceptible to aging cracks, compression set (permanent deformation), or swelling/softening due to grease/oil contamination. Inspect during every maintenance cycle. Excessive wear can lead to metal-to-metal contact damage of the coupling hubs.

• Spare Parts Stock: It is highly recommended to keep this part in stock to prevent unexpected downtime. When ordering, always verify the mixer model plate or take precise measurements of the old part (especially center bore diameter and bolt pattern) to ensure fitment for 3.0/4.0/4.5 m³ models.

• Sourcing: Available through BHS authorized dealers or specialized concrete machinery parts suppliers. Prioritize suppliers who can cross-reference the OEM number 910284602.

Important Reminder: BHS transmission systems have precise tolerances. Please provide the exact mixer model, serial number, or dimensions of the removed part to your supplier to guarantee a perfect fit.