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H Series Geroter Motor, 2.80 cu in/rev, 4 Bolt Mounting Flange, 1 in. Straight Keyed Shaft, 7/8-14 St.Thd O-Ring Ports, Compact yet powerful|Extended bearing life|Increased shaft seal

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Description & Features

The H Series Geroter Motor designed by Danfoss Power Solutions LLC features a 2.80 cu in/rev displacement with a 4 bolt mounting flange.

Its 1 in. straight keyed shaft and 7/8-14 St.Thd O-Ring ports provide a robust solution for agricultural equipment like augers harvesters and seeders as well as industrial machinery such as sweepers and floor polishers.

With a torque rating of 73 Nm this motor is both compact and powerful ensuring extended bearing life and increased shaft seal.

Operating at a maximum case pressure of 1500 PSI and a maximum temperature of 180 F it is also designed for optimum fluid compatibility with premium quality anti-wear type hydraulic fluid and requires a break-in period of approximately one hour at 30% of rated pressure to ensure longevity.

The fluid viscosity should meet specific standards for efficient performance and recommended filtration is per ISO Cleanliness Code level 18/13.

Designated under ECCN EAR99 it is a versatile and reliable choice for industry-specific parts particularly within the geroler and geroter motor categories.

Specifications

Brand
Danfoss
Bearing Type
Hydrodynamic Journal
Check Valve Function
Without Check Valve Function
Color
Black
Design Code
9
Dimensions
6.45 in L x 3.31 in W x 3.87 in H
Frame Size
45
Housing Material
Iron
Mounting Type
4-Bolt Square Flanged
Orbital Gearwheel Set
Standard
Orbital Gearwheel Set Type
Gerotor
Paint Information
Low Gloss Black Primer
Painted
With Painted
Port Location
Side, Aligned
Port Type
UNF-2B, SAE O-ring
Seal Material
NBR
Segment Code
A
Series
H Series
Shaft Size
1 in Dia
Shaft Type
Straight Woodruff Keyed
Valve Type
Spool

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Product Questions & Answers (3)

Question by: Dean B on Sep 14, 2025, 9:35 AM
got a motor mount with a 4 bolt flange and i need a 1 inch straight keyed shaft, is this the right setup?
Answer by: Customer Support on Sep 15, 2025, 10:15 AM
It matches a 4 bolt mounting flange and it comes with a 1 in. straight keyed shaft. The ports are 7/8-14 straight thread SAE O-ring (UNF-2B), so your hoses and fittings need to match that style too.
Question by: Lee H on May 8, 2025, 1:11 PM
What kind of equipment is this motor typically used on?
Answer by: Customer Support on May 9, 2025, 3:16 PM
This Char-Lynn H Series motor is a good fit for agricultural equipment such as augers, harvesters, and seeders. It's also used in industrial machinery like sweepers and floor polishers.
Question by: Chad M on Dec 12, 2025, 2:50 PM
what's the break-in procedure for this motor? got one going on a seeder and don't want to burn it up right out of the gate
Answer by: Customer Support on Dec 14, 2025, 11:37 AM
Run it for about an hour at roughly 30% of its rated pressure before you put it under full load. Also make sure the motor is filled with fluid before you apply any load at all. Skipping that step is where a lot of premature wear comes from, so it's worth taking the time upfront.

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