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MH30/31 Series Bearing Style Gear Pump

Genuine Metaris MH30/31 series bearing pumps & motors are available in 7 different gear sizes with a variety of mounting flanges, shaft configurations and porting options. Multi-section units, piggyback designs, dowelled assemblies & flow dividers are all also available. With ductile iron housings, these pumps offer pressure ratings as high as 3000 psi for the most demanding of applications. The MH series are perfect alternatives to other gear pump products from Commercial®/Parker®, Permco® and Muncie®.

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MH30/31 Series Gear Pumps - Metaris

Designed for High Efficiency Output

  • Suitable for a variety of applications
  • 8 different gear sizes available
  • Heavy Duty Roller Bearing Design
  • Dowelled and Rugged Cast Iron Construction
  • Pressure balanced wear plates
  • Pressures up to 3000 psi
  • Speeds up to 2400 rpm
  • Multiple porting options
  • High Strength Steel Gear & Shaft Sets
  • Multiple Bearing Carrier Options
  • Variety of Mounting Flange and Shaft Options
  • Alternatives for Commercial®/Parker®, Permco® and Muncie® gear products

Metaris MH30/31 Series Gear Pump Specifications

Gear Size Displacement
(in³ / cm³)
Max RPM Max Pressure (Dowelled)
(PSI / bar)
(Lbs / Kgs)
.05 .99 / 16.1 2400 3000 / 207 30 / 14
.07 1.48 / 24.2 2400 3000 / 207 31 / 14
1.00 1.97 / 32.3 2400 3000 / 207 32 / 15
1.25 2.46 / 40.4 2400 3000 / 207 33 / 15
1.50 2.96 / 48.4 2400 3000 / 207 34 / 15
1.75 3.45 / 56.5 2400 2500 / 172 35 / 16
2.00 3.94 / 64.6 2400 2500 / 172 36 / 16

Weights shown are for single unit pumps/motors.

MH30/31 Series Gear Pump Model Code Breakdown

MH30/31 Series Gear Pump Model Code Breakdown


MH30/31 Series Gear Pump Cut Sheet   Download/View
Metaris Gear Product Technical Catalog   Download/View
Metaris Product Catalog   Download/View

Our New 2-Day Quickship Guarantee on Gear Pumps

Order up to five of any of our qualifying gear products and they’ll ship in 2-days or we’ll give you a 10% rebate–that’s our promise to you. Should we miss that 2-day timeframe and you have a claim to address or file, please don't hesitate to contact us through our contact form right here on our website and be sure to include your Sales Order/Purchase Order # as a reference. Parts and/or unit availability subject to change without notice.

Terms and conditions: Current customers or new customers who purchase qualifying in-stock gear pump products may be eligible for this program.
Rebates vary in amount and are based on the purchase order/sales order invoice. Customers will receive 10% off their next order with a maximum value calculated against the purchase order/sales order invoice that the qualifying gear pump product(s) were on.
This program is valid for purchases made on or after 9/9/2016.
Unless otherwise expressly stated in writing, this program is not combinable with any other discounts or special pricing provided by or made available by Hydraulex Global.
Hydraulex Global/Metaris may amend or cancel this program or general program conditions at any time. Void where prohibited or restricted by law.

Cross-referenced parts from the Original Equipment Manufacturer "OEM" are listed for information purposes only. Trademarks identifying these parts for cross-reference are those of each OEM and are the property of their owners and are not used, or authorized for use, by Metaris or Hydraulex Global or its affiliates. Neither Metaris nor Hydraulex Global are affiliated with the Original Equipment Manufacturer "OEM" or licensed or authorized to produce parts for the OEM.