NSH50-50 Tandem Hydraulic Gear Pump With 50+50 Cc Sections

NSH50-50 Tandem Gear Pump

Olive Branch Hydraulics handles China-manufactured NSH50-50 tandem gear-pump enquiries for Russian and CIS hydraulic equipment. The nominal configuration is 50 + 50 cm³/rev, using two pump sections driven by a common shaft. Send the old pump identification and installation measurements so both hydraulic circuits can be reviewed before quotation.

Two Equal-Displacement Sections

The reference assembly has two similar-size aluminium housings, an intermediate connecting section and a four-hole front mounting flange. Its exposed splined drive shaft and side oil-port faces can be seen in the reference photographs. This is the 50+50 enquiry family, distinct from the smaller NSH10-10 assembly, the unequal-section NSH32-10 and the NSH100/50A-3 combination.

Each circuit needs its own flow and pressure assessment. Equal nominal displacement does not establish identical pressure limits, a common inlet arrangement or permission to connect both outlets together. Confirm the actual port routing on the approved drawing.

Model Names and Rotation

Useful enquiry forms include NSH50-50, NSh50/50, NSH 50-50, НШ50-50 and НШ-50-50. Add the complete execution suffix, rotation marking and any machine part number from the original pump. These shortened forms help identify a search; they do not define an interchangeable assembly.

The photographed supplier sample is marked as right rotation. Listings for both rotation directions can reuse the same photographs, so the image alone must not decide the order specification. State the required direction viewed from the drive-shaft end. Left-hand and right-hand units must be confirmed separately. NSH50-50D3 and other suffixed executions also require their own interface and performance review.

Installation and Drive Review

Check the locating diameter, mounting-hole spacing, flange thickness, shaft diameter, spline profile and usable shaft length. Record the connection dimensions of all oil ports and the total installed length. The longer tandem assembly may require a manufacturer-approved support arrangement to avoid excessive load at the mounting flange. Match the coupling and drive torque to the combined load of both sections.

Working pressure, peak pressure, minimum and maximum speed, oil viscosity, temperature limits and permissible shaft load follow the data sheet for the exact quoted assembly. Ratings from another supplier are not an Olive Branch test result. Request confirmation of the operating conditions before placing an order.

Reference Images and Quotation

The three views show a supplier reference sample, not an Olive Branch production batch. Other-brand identification graphics have been removed from the edited views; no Olive Branch nameplate has been added. Final supply origin, configuration and sample photographs are confirmed with the quotation. Include quantity, destination and old-pump photographs when contacting Olive Branch Hydraulics for OEM/ODM or sample review.

Frequently Asked Questions

What does 50-50 mean?

It identifies a nominal 50+50 cm³/rev two-section enquiry configuration. Confirm the precise displacement of each section on the supplied specification.

Is NSH50-50 the same as a single NSH50?

No. The tandem has two sections, additional connections and a longer assembly. A single-pump model does not define its installation.

Can I choose rotation from these photographs?

No. Provide the old marking and required shaft-end rotation for written confirmation.

Are D3 and other suffixes interchangeable?

Do not assume so. Keep the full model and compare the shaft, mounting, ports and operating limits.

Which machine does it fit?

Confirm using the machine model, parts-book number and measured interfaces. A general tractor or loader description is insufficient.

What should I send for a quotation?

Send the complete marking, all-side photos, installation measurements, both circuit requirements and order quantity.