UNBT-950A2 Mud Pump Parts: Assembly, Pulley and Replacement Matching

UNBT-950A2 mud pump parts enquiries should retain the A2 suffix. The supplied parts catalogue identifies УНБТ-950А2 by general assembly drawing 14077.53.000СБ, distinct from the UNBT-950A general assembly.

For a larger repair, separate the hydraulic block, transmission shaft, pulley, cooling-fluid system and distribution block in the requested scope. Their drawing references help make the parts list more specific than a request for “950 pump spares”.

Specification and identification points

Confirm the drive configuration before selecting a pulley

The shared catalogue lists pulley diameters of 710, 800 and 1000 mm under separate references. Provide the installed pulley diameter, belt arrangement, shaft connection and drive details. A pulley appearing in the same catalogue is not proof that it is an interchangeable replacement for the installed drive.

Verify the base and accessory arrangement from the actual pump

The introductory text and the frame line in the supplied catalogue disagree about the base-frame allocation between 950A and 950A2. Use the pump serial details and mounting photographs to resolve the configuration before requesting frame or installation parts. The frame reference involved in that ambiguity is deliberately not offered here as a confirmed model-specific replacement.

Fluid-end items still require the liner bore and exact suffix. For example, the 180 mm liner and piston entries below are catalogue references to check, not a statement that every A2 pump has that bore installed.

The following is a selected reference table checked against the source pages. It is not the complete pump bill of materials. A pump model or a document number is not a substitute for the component drawing reference.

Retain the original characters in a reference, including the Cyrillic letters СБ where shown. Similar-looking Latin letters or an omitted suffix can make a quotation ambiguous. The references identify entries in these catalogues; they do not prove that a replacement from a different edition will fit.

Information to include in a parts enquiry

• Complete pump designation, manufacturer shown on the nameplate, serial number and year.
• Original drawing or catalogue reference, including every suffix and the figure / position number.
• Part photographs, key mating dimensions and the assembly in which the part is installed.
• For fluid-end consumables: liner bore, piston construction, seal arrangement and required quantity.
• Delivery destination and the list of parts required for the same maintenance job.

For a UNBT-950A2 enquiry, send the reference together with the pump details for identification. See our mud pump spare parts enquiry page or UNBT series parts catalogue. Availability and suitability require confirmation for the actual configuration.

Document references

• 950: UNBT-950A / UNBT-950A2 parts catalogue, 14036.53.435КДС. Page numbers in the tables identify the PDF file page, counted from 1.

These references describe the supplied documents. They do not establish present inventory, original-manufacturer authorisation or interchangeability with another pump revision.