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Hydraulic gear pump HGP-2A-F6R-X-4BJ for sale

Hydraulic gear pump HGP-2A-F6R-X-4BJ for sale
Product name : Hydraulic gear pump HGP-2A-F6R-X-4BJ for sale
Item :
Details :
Hydraulic gear pump HGP-2A-F6R-X-4BJ for sale
Features
HGP-2A Gear Pump function well under high temperature with Viton’s seal. It can also run under high pressure with the oil less bearing design.
Model Definition
HGP-2A
-F
8
-R
-X
-4BJ
Series
Installation Type
Displacement
(cc/rev)
Input Rotation
Input Shaft
Front Flange Cover
Gear Pump 2A Series
F: Flange Mounting
L: Foot Mounting
2:2
3:3
4:4
6:6
8:8
9:9
11:11
12:12
R: Clockwise
L: Anti-clockwise
X: Straight Keyed
Y: Spline
4BJ: JIS 4-Bolt
Specification
Model
Displacement
(cc/rev)
Pressure
(bar)
Speed
(RPM)
Weight
(kg)
Rated
Max.
Rate
Min.
Max.
HGP-2A-*2*
2
210
250
1800
900
5000
1.69
HGP-2A-*3*
3
850
5000
1.70
HGP-2A-*4*
4
800
4500
1.71
HGP-2A-*5*
5
700
3500
1.71
HGP-2A-*6*
6
700
3500
1.72
HGP-2A-*8*
7.5
600
3000
1.74
HGP-2A-*9*
9
550
2500
1.74
HGP-2A-*11*
10.5
500
2000
1.74
HGP-2A-*12*
12
175
210
500
2000
1.76






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Why CB type gear pump can only be used for low pressure system
 
Gear pump in the working process, due to the oil drainage chamber and suction chamber pressure is different, the oil will inevitably leak through the clearance. CB gear pump there are a lot of leakage.
 
First, in order to reduce the mechanical friction between the gear face and the end cover, there should be axial clearance between the gear face and the end cover, and the amount of clearance can not be too small, so the axial leakage of the gear pump is inevitable. We know that the amount of leakage is increased with the increase of the amount of clearance, and the gear pump in the gear face and cover between the large leakage area, so the leakage here accounts for about 70% of the total leakage.
 
Second, in the work of the gear pump, the two gears to rotate, tooth top circle and pump body cavity also exists between the gap, resulting in the radial leakage of oil.
 
Third, two gear meshing tooth surface meshing also has leakage, this leakage through the meshing point generally accounts for only 4% - 5% of the total leakage. It can be seen that CB gear pump leakage is serious, is not easy to establish high pressure.
 
In addition, CB type gear pump has the problem of unbalanced radial force. The higher the pressure in the oil discharge chamber, the greater the pressure on the gear and shaft. The gear shaft produces bending deformation, which affects the bearing life. In order to overcome this drawback, in addition to taking certain measures to eliminate the radial force imbalance phenomenon, the appropriate reduction of oil outlet pressure, for the shaft, bearing part is of great benefit, and can make the pump operation flexible.
 
In view of the above reasons, CB type gear pump is only suitable for low pressure systems.
 
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