Hydraulic Pump

how efficient is a hydraulic pump and hydraulic motor?

how efficient is hydraulic motor connceted to a hydraulic pump so the pump runs the motor. what kind of losses are there? is there a different lose at different speeds

If the components are new, the circuit will be relatively efficient. Inefficiency will be a function of leakage in the pump and motor.
The losses will go up with speed and load. The suppliers normally provide a graph that enables you to work out what the delivered power will be at a given load and speed setting.

Just a quick note about the above answer, liquids are compressible but at low pressures the compression is so low it can be virtually ignored. However in applications like fuel systems, operating at around 2000 bar, diesel is compressed to be 85% of its original volume.

Toro Groundsmaster Reelmaster Hydraulic Stack Pump Danfoss Webster 49913 49913
Toro Groundsmaster Reelmaster Hydraulic Stack Pump Danfoss Webster 49913 49913
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Husqvarna P ZT Zero Turn Hydraulic Pump Replacement Belt 576 66 72 01
Husqvarna P ZT Zero Turn Hydraulic Pump Replacement Belt 576 66 72 01
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Gravely Tractor Hydraulic Lift Pump 8000 G Series Tractors P N 18813 08900900
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John Deere Hydro Pump TCA18087 647A 657A 667A 717A 727A 737 757 Hydraulic Part
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Case Ingersoll Tractor Mower 220 Hydraulic Oil Hose Pump to Control Valve
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Case Ingersoll Tractor Mower 220 Kohler K241 10HP Engine Hydraulic Pump Mount
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Gravely Tractor Mower 816 Hydraulic Oil Pump
Gravely Tractor Mower 816 Hydraulic Oil Pump
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John Deere 112 garden tractor HYDRAULIC LIFT PUMP and CYLINDER Kohler Engine
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Spring 52401 21543876 4EA HYDRO GEAR hydraulic pump transaxle transmission
Spring 52401 21543876 4EA HYDRO GEAR hydraulic pump transaxle transmission
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Spring 51605 4EA EXTENSION RTN44LBS HYDRO GEAR HYDRAULIC pump transaxle
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Brake pin 44127 6EA ACTUATING HYDRO GEAR HYDRAULIC pump transaxle transmission
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Spring 51833 732 0448 21544001 HYDRO GEAR 4EA HYDRAULIC pump transaxle
Spring 51833 732 0448 21544001 HYDRO GEAR 4EA HYDRAULIC pump transaxle
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Hydraulic Pump Ford 6610 7610 83996272 550131600E1NN600AB83996272E1NN600AB
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Ford New Holland 83996272 83996336 1101 1012 Hydraulic Pump
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Pump PR 5JQC FY1X X1XX HYDRO GEAR HYDRAULIC
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Spring kit 70873 RTN CW HVY HYDRO GEAR HYDRAULIC pump transaxle transmission
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Kohler Parts Hydraulic Pump Adapter for 18 27HP Command Twi KO Adapter 2475509
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John Deere Hydro Pump TCA18087 647A 657A 667A 717A 727A 737 757 Hydraulic Part
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CASE 442 444 Tractor Hydraulic Oil Pump Mount
CASE 442 444 Tractor Hydraulic Oil Pump Mount
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CASE Ingersoll 224 Hydriv Tractor Hydraulic Oil Pump Mount
CASE Ingersoll 224 Hydriv Tractor Hydraulic Oil Pump Mount
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lawnmower hydraulic pump HYDRO GEAR PG 1BNQ DB1X XXXX 1 brand new
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John Deere 110 112 Tractor Hydraulic Pump Idler Pulley
John Deere 110 112 Tractor Hydraulic Pump Idler Pulley
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CASE 155 Tractor Hydraulic Oil Tube Pump To Transmission
CASE 155 Tractor Hydraulic Oil Tube Pump To Transmission
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Aux Hydraulic Gear Pump 105 3317 Toro 6500 D 6700 D Reelmaster Mower
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Hydrostatic Hydraulic Piston Pump 105 3356 Toro 6500 D 6700 D Reelmaster Mower
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John Deere F620 hydraulic pump lever AM123919
John Deere F620 hydraulic pump lever AM123919
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John Deere F620 hydraulic pump lever AM12390 rep by TCA51195
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John Deere hydro pump 717 727 737 757 647A 657A 667A Dual Hydraulic Fits ZTR
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Genuine Toro OEM Hydraulic Pump
Genuine Toro OEM Hydraulic Pump
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Genuine Toro OEM Hydraulic Pump
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Genuine Toro OEM Hydraulic Pump
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16HP CASE 1816B HYDRAULIC PUMP MOUNT
16HP CASE 1816B HYDRAULIC PUMP MOUNT
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CASE 222 224 226 444 448 446 Tractor Hydraulic Oil Pump Line hoses
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John Deere Hydraulic Pump 737 757 Hydro Part PG 4HQN DY1X XXXX 6284P0255
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Shaft 70763 HYDRO GEAR HYDRAULIC pump transmission transaxle
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Allis Chalmers 5015 Tractor Hydraulic Oil Pump Mount Bracket
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Hydraulic Gear Pump TCA12336 off 2004 John Deere 3225C Mower 3235C 3225B 3235B
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John Deere 2500 2500E Greensmower Hydraulic pump motor drive hub coupling NICE
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NEW OEM Hydro Gear pump PL BGQQ DY1X XXXX
NEW OEM Hydro Gear pump PL BGQQ DY1X XXXX
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NEW OEM Hydro Gear pump PR2HBCGY1EXXXX
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John Deere 110 112 Round Fender Garden Tractor Hydraulic Lift Pump
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John Deere 3245C TCA14808 Hydraulic Pump
John Deere 3245C TCA14808 Hydraulic Pump
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CASE 220 Tractor Hydraulic Oil Pump Mount
CASE 220 Tractor Hydraulic Oil Pump Mount
$17.59
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CASE 448 446 Tractor Hydraulic Oil Pump Mount
CASE 448 446 Tractor Hydraulic Oil Pump Mount
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Toro orbit motor filter hydraulic pump motor reelmaster
Toro orbit motor filter hydraulic pump motor reelmaster
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CASE 220 222 224 Tractor Hydraulic Oil Pump
CASE 220 222 224 Tractor Hydraulic Oil Pump
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John Deere 2243 Greens Mower Hydraulic Oil Pump
John Deere 2243 Greens Mower Hydraulic Oil Pump
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Seal kit 70312 HYDRO GEAR HYDRAULIC pump transaxle transmission
Seal kit 70312 HYDRO GEAR HYDRAULIC pump transaxle transmission
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Case 448 Hydraulic Pump Bracket
Case 448 Hydraulic Pump Bracket
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Case 220 hydraulic transaxle pump
Case 220 hydraulic transaxle pump
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Pump PE 1HCC DY1X XXXX 200028 Hydro Gear FOR hydraulic transaxle transmission
Pump PE 1HCC DY1X XXXX 200028 Hydro Gear FOR hydraulic transaxle transmission
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Pump PG 1GAP DY1X XXXX 103 1943BDP 10A 433 FOR Hydro Gear hydraulic transaxle
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CASE 220 Tractor Hydraulic Oil Pump Mount
CASE 220 Tractor Hydraulic Oil Pump Mount
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John Deere 300 312 314 317 Hydraulic Transmission Pump Hydro Pump PT Am39998
John Deere 300 312 314 317 Hydraulic Transmission Pump Hydro Pump PT Am39998
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Simplicity 157230 V Belt Soverign Hydraulic Pump Drive
Simplicity 157230 V Belt Soverign Hydraulic Pump Drive
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New Holland S 14H Tractor Hydraulic Oil Pump Mount
New Holland S 14H Tractor Hydraulic Oil Pump Mount
$15.83
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Dixie Chopper Hydraulic Pump  20051
Dixie Chopper Hydraulic Pump 20051
$825.00
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Dixie Chopper Hydraulic Pump  20052
Dixie Chopper Hydraulic Pump 20052
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Center section 70684 HYDRO GEAR HYDRAULIC FOR TRANSMISSION TRANSAXLE PUMP
Center section 70684 HYDRO GEAR HYDRAULIC FOR TRANSMISSION TRANSAXLE PUMP
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Transaxle ZC DUBB 2ADC 1WPX ZC DUBB 2ADC 1DPX HYDRO GEAR OEM HYDRAULIC pump
Transaxle ZC DUBB 2ADC 1WPX ZC DUBB 2ADC 1DPX HYDRO GEAR OEM HYDRAULIC pump
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Transmission BDU 10S 115 HYDRO GEAR HYDRAULIC pump transaxle
Transmission BDU 10S 115 HYDRO GEAR HYDRAULIC pump transaxle
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Transmission 70477 CENTER SECTION HYDRO GEAR HYDRAULIC pump transaxle
Transmission 70477 CENTER SECTION HYDRO GEAR HYDRAULIC pump transaxle
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Transmission 71565 CENTER SECTION HYDRO GEAR hydraulic pump  transaxles
Transmission 71565 CENTER SECTION HYDRO GEAR hydraulic pump transaxles
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Transmission 70667 CENTER SECTION HYDRO GEAR HYDRAULIC pump transaxle NLA
Transmission 70667 CENTER SECTION HYDRO GEAR HYDRAULIC pump transaxle NLA
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Transmission ZC AHBB 3D8B 2DPX ZT2200 HYDRO GEAR HYDRAULIC pump transaxle
Transmission ZC AHBB 3D8B 2DPX ZT2200 HYDRO GEAR HYDRAULIC pump transaxle
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Transaxle 70250 50704 70214 70201 CENTER SECTION FOR HYDRO GEAR HYDRAULIC pump
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Transmission 70760 center section HYDRAULIC Hydro Gear pump transaxle
Transmission 70760 center section HYDRAULIC Hydro Gear pump transaxle
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Transmission BDU 10L 210 160 1030 HYDRO GEAR OEM Hydraulic pump transaxle
Transmission BDU 10L 210 160 1030 HYDRO GEAR OEM Hydraulic pump transaxle
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Transmission 70864L LH CENTER SECTION HYDRO GEAR HYDRAULIC pump transaxle
Transmission 70864L LH CENTER SECTION HYDRO GEAR HYDRAULIC pump transaxle
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Transaxle ZC AUBB 3D5A 2WPX ZC AUBB 3D5A 2DPX HYDRO GEAR HYDRAULIC OEM pump
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Transmission 5066S BDR CENTER SECTION HYDRO GEAR HYDRAULIC pump transaxle
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Transmission ZC AUBB 2K7B 1WPX HYDRO GEAR OEM ZT2200 HYDRAULIC pump transaxle
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TransaxleT2 ABBE 5X1A 1XX1 618 04925 618 04925A HYDRO GEAR HYDRAULIC OEM pump
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Transmission 71561 CENTER SECTION HYDRO GEAR HYDRAULIC pump transaxle
Transmission 71561 CENTER SECTION HYDRO GEAR HYDRAULIC pump transaxle
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Transmission BDU 10L 120 HYDRO GEAR Hydraulic Pumps  Transaxles
Transmission BDU 10L 120 HYDRO GEAR Hydraulic Pumps Transaxles
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Transmission BDU 10L 216 48784 HYDRO GEAR HYDRAULIC pump transaxle
Transmission BDU 10L 216 48784 HYDRO GEAR HYDRAULIC pump transaxle
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