2.5PB Series Aluminum Gear Pump, 1.35 cu in/rev, 2-Bolt SAE B Mounting Flange, 7/8 Straight Keyed SAE B Shaft, SAE -12 Side Inlet, SAE -10 Side Outlet, CW Rotation

Description & Features

Designed for demanding mobile and industrial hydraulic circuits, the Salami 2.5PB Series Aluminum Gear Pump delivers a displacement of 1.35 cu in/rev with a rated flow of 10.5 GPM at 3000 RPM. Continuous working pressure is rated at 3600 PSI, with peak capability up to 4300 PSI, supported by floating bushing axial compensation that maintains high volumetric efficiency across the working pressure range. DU bearings contribute to its high-pressure performance.

This unit features a 2-Bolt SAE B mounting flange, a 7/8 straight keyed SAE B shaft, and side porting configured as SAE -12 inlet and SAE -10 outlet. Rotation is clockwise as stocked, though it can be reversed by repositioning the drive and driven shafts and rotating the front flange. Standard Buna-N seals support a temperature range of -4°F to 185°F; optional Viton seals extend that range to 230°F. The pump is compatible with fluids in the 85–297 SUS normal viscosity range and is available as part of a multiple-pump assembly in various shaft, flange, and port configurations to suit SAE and European standards.

SKU: 613871252

Supplier Part Number (MPN): 613871252

Alternate Part Numbers: C1MR61

Specifications

Brand
Salami
Dimensions
6.346 in L x 4.72 in W x 5.91 in H
Grp Pressure Limit
Inlet Pressure - 7.38 inHg to 21.7 psi, Pump Outlet - Continuous Working Pressure Varies with Displacement, Peak Pressure Pressures up to 4300 psi
grp Recommended Filtration
< 2900 psi - 20/19/16 um, > 2900 psi - 19/18/15 um
grp Recommended Fluids
Minimum Operating Fluid Viscosity - 66 SSU (with 80% Reduction of Working Pressure and at Minimum Speed) to 3635 SSU (Maximum Starting Viscosity), Normal Operating Range - 85 SSU to 297 SSU
Housing Material
Aluminum
Inlet Type
SAE Threaded
Mount
2-Bolt SAE B
Mounting Type
Flange
Outlet Type
SAE Threaded
Rotation
Clockwise
Seal Material
Nitrile
Series
2.5PB Series
Shaft
7/8 in Straight Keyed SAE B

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Product Questions & Answers (2)

Question by: Harvey C on Jul 18, 2025, 8:26 AM
Will this gear pump work okay in a hydraulic system that needs around 10.5 GPM flow?
Answer by: Customer Support on Jul 19, 2025, 5:48 PM
This 2.5PB series pump is rated to provide 10.5 GPM, so it should be suitable for that flow requirement.
Question by: Cody G on Feb 16, 2026, 9:27 PM
pump says CW rotation on it, can that be swapped if my setup runs counterclockwise?
Answer by: Customer Support on Feb 18, 2026, 9:07 AM
Rotation can be changed by reversing the position of the drive shaft and driven shaft and rotating the front flange. It does ship standard in clockwise rotation, so if your system runs the other way you'd need to make that adjustment before putting it into service. Worth taking care of that before mounting everything up.

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