Hydraulic Gear Pump for Tractor Spare Parts 83928509 E1nn600ab 83996272 E1nn600AA

Sanye Auto parts  is a professional manufacturer and distributor of Hydraulic components which are widely applied to engineer construction, agriculture, marine, mining, etc. All of the products are of High quality. Including the Hydraulic pump, hydraulic motor, Pump spare parts,Motor spare parts, Hydraulic Valve, Steering Unit,ect.

The core materials and designs of this series of hydraulic gear pumps are as follows:
Pump body: All are made of high-strength gray cast iron (HT250), which is treated with aging to eliminate internal stress, with a hardness of HB180-220. It has better impact resistance than ordinary cast iron and is suitable for tractor bumpy conditions.
Gear: 83928509/E1NN600AB adopts 20CrMnTi carburizing and quenching process, with tooth surface hardness HRC58-62, tooth core toughness ≥800MPa, and wear resistance is 30% higher than ordinary 45 steel gears; 83996272/E1NN600AA gears are 40Cr quenched and tempered (HRC28-32), suitable for medium and low load scenarios.
Sleeve: All are equipped with copper-based powder metallurgy sleeves (oil content 15-20%), which have self-lubricating function to reduce dry friction wear.
Corrosion-resistant design: The inner cavity and oil channel of the pump body are phosphating treated, and the outer surface is sprayed with epoxy primer + polyurethane topcoat (film thickness 60-80μm), which can withstand field moisture, dust and mild chemical corrosion (such as fertilizer residue).

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