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.

BELARUS Hydraulic Gear Pump NSH32A3 NSH32A300 100 102 560 562 570 572 800
BELARUS Hydraulic Gear Pump NSH32A3 NSH32A300 100 102 560 562 570 572 800
$298.00
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RE29103 John Deere Hydraulic Pump Seal Kit 3010 2520 4000 4010 4020 4040 4055 ++
RE29103 John Deere Hydraulic Pump Seal Kit 3010 2520 4000 4010 4020 4040 4055 ++
$64.70
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FIAT Tractor Hydraulic Pump 480 480DT 500 500DT 540 540DT 72 93DT 82 93DT
FIAT Tractor Hydraulic Pump 480 480DT 500 500DT 540 540DT 72 93DT 82 93DT
$171.99
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R43075 New John Deere Tractor Hydraulic Pump Drive Shaft Coupler 4040 4230 +
R43075 New John Deere Tractor Hydraulic Pump Drive Shaft Coupler 4040 4230 +
$70.00
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1683301M92 Pump Hydraulic Lift Fits Massey Ferguson 20C 50E TRACTOR 230 699
1683301M92 Pump Hydraulic Lift Fits Massey Ferguson 20C 50E TRACTOR 230 699
$956.61
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JOHN DEERE 2500A HYDRAULIC PUMP PART  AMT2471
JOHN DEERE 2500A HYDRAULIC PUMP PART AMT2471
$125.00
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Case IH Hydraulic Pump Assembly K962635
Case IH Hydraulic Pump Assembly K962635
$513.95
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FORD 9N 2N 8N LOADER HYDRAULIC PUMP CRANKSHAFT DRIVE PULLEY 192160
FORD 9N 2N 8N LOADER HYDRAULIC PUMP CRANKSHAFT DRIVE PULLEY 192160
$46.25
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Ford Newholland Hydraulic Pump 1 Year Warranty
Ford Newholland Hydraulic Pump 1 Year Warranty
$375.00
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Ford Backhoe Hydraulic Pump 655 A Vickers
Ford Backhoe Hydraulic Pump 655 A Vickers
$295.00
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John Deere Hydraulic Pump
John Deere Hydraulic Pump
$1,500.00
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Ford Hydraulic Pump D8NN600LB 1 Year Warranty
Ford Hydraulic Pump D8NN600LB 1 Year Warranty
$370.00
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NEW Hydraulic Pump Cover Gasket for Ford New Holland 1800 SERIES 2000
NEW Hydraulic Pump Cover Gasket for Ford New Holland 1800 SERIES 2000
$19.95
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CCPN600B Hydraulic Pump Repair Kit
CCPN600B Hydraulic Pump Repair Kit
$34.99
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9N640 Hydraulic Pump Control Valve
9N640 Hydraulic Pump Control Valve
$19.99
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ALLIS CHALMERS DUAL HYDRAULIC PUMP 79016058 70269936
ALLIS CHALMERS DUAL HYDRAULIC PUMP 79016058 70269936
$1,765.00
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Massey Ferguson Hydraulic Pump Repair Kit W Valve Chambers 135 165175 178
Massey Ferguson Hydraulic Pump Repair Kit W Valve Chambers 135 165175 178
$198.00
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ALLIS CHALMERS HYDRAULIC PUMP 70248735 190 GAS 190XT DIESEL
ALLIS CHALMERS HYDRAULIC PUMP 70248735 190 GAS 190XT DIESEL
$2,183.00
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ALLIS CHALMERS HYDRAULIC PUMP TRIPLE 70249437 180 185
ALLIS CHALMERS HYDRAULIC PUMP TRIPLE 70249437 180 185
$1,835.00
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Massey Ferguson Hydraulic Pump Repair Kit 1810858M91 35 35 X 65 765 TO35
Massey Ferguson Hydraulic Pump Repair Kit 1810858M91 35 35 X 65 765 TO35
$198.00
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Exmark Mower Hydrostatic Drive Pump Hydraulic System Oil Filter Mount
Exmark Mower Hydrostatic Drive Pump Hydraulic System Oil Filter Mount
$20.00
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FORD Main Hydraulic Pump A42 L 5179714
FORD Main Hydraulic Pump A42 L 5179714
$238.50
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White Oliver Replacement Hydraulic Pump 2 70 1600 1650 1750 1800 1850 1950
White Oliver Replacement Hydraulic Pump 2 70 1600 1650 1750 1800 1850 1950
$506.93
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OLIVER 1250 HYDRAULIC PUMP 670668a
OLIVER 1250 HYDRAULIC PUMP 670668a
$228.00
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WHITE Main Hydraulic Pump A42 L 909916 1930226
WHITE Main Hydraulic Pump A42 L 909916 1930226
$268.50
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John Deere Hydraulic Pump Parts Kit AR98993 NSN 4320 00 008 1738 NEW B2614
John Deere Hydraulic Pump Parts Kit AR98993 NSN 4320 00 008 1738 NEW B2614
$13.99
Time Remaining: 18h 23m

FIAT Tractor Hydraulic Pump 5179728 8282886 5169039
FIAT Tractor Hydraulic Pump 5179728 8282886 5169039
$199.95
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FORD Tractor Hydraulic Pump 5129486 5179728 8282886 TL70 4635 4835
FORD Tractor Hydraulic Pump 5129486 5179728 8282886 TL70 4635 4835
$214.50
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WHITE CRAWLER TRACTOR W LOADER HYDRAULIC PUMP 1909916 1930226 5120850 516977
WHITE CRAWLER TRACTOR W LOADER HYDRAULIC PUMP 1909916 1930226 5120850 516977
$250.00
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WHITE TRACTOR HYDRAULIC PUMP 5121276 1370 1365
WHITE TRACTOR HYDRAULIC PUMP 5121276 1370 1365
$138.00
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FRONT MOUNT HYDRAULIC PUMP BACKHOE CRAWLER LOADER MASSEY FERGUSON 30 32 212 225
FRONT MOUNT HYDRAULIC PUMP BACKHOE CRAWLER LOADER MASSEY FERGUSON 30 32 212 225
$535.00
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New Gleaner Combine Hydraulic Pump Belt 71152608
New Gleaner Combine Hydraulic Pump Belt 71152608
$14.00
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New Gleaner Combine Hydraulic Pump Belt 71152609
New Gleaner Combine Hydraulic Pump Belt 71152609
$14.00
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New Gleaner Combine Hydraulic Pump Belt 71167408
New Gleaner Combine Hydraulic Pump Belt 71167408
$12.00
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New Gleaner Combine Hydraulic Pump Belt 71194117
New Gleaner Combine Hydraulic Pump Belt 71194117
$17.00
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FARMALL IHC H belly pump drive coupler hydraulic system part used
FARMALL IHC H belly pump drive coupler hydraulic system part used
$29.99
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MASSEY FERGUSON HYDRAULIC PUMP 1684582M92 135 150 165 175 20 235 30 40 180
MASSEY FERGUSON HYDRAULIC PUMP 1684582M92 135 150 165 175 20 235 30 40 180
$525.00
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JOHN DEERE 4020 3020 4010 3010 HYDRAULIC PUMP STROKE CONTROL VALVE R32442R
JOHN DEERE 4020 3020 4010 3010 HYDRAULIC PUMP STROKE CONTROL VALVE R32442R
$50.00
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JOHN DEERE 4020 3020 4010 3010 HYDRAULIC PUMP SHAFT
JOHN DEERE 4020 3020 4010 3010 HYDRAULIC PUMP SHAFT
$50.00
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AR94661 New John Deere Hydraulic Pump Assembly 4000 4020 4320 + 1 Year Warranty
AR94661 New John Deere Hydraulic Pump Assembly 4000 4020 4320 + 1 Year Warranty
$1,001.65
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T22915 New John Deere Hydraulic Pump Drive Shaft 2030 2440 2630 2640 300B 302A +
T22915 New John Deere Hydraulic Pump Drive Shaft 2030 2440 2630 2640 300B 302A +
$124.75
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M1769T John Deere 40 320 330 Hydraulic Pump Base
M1769T John Deere 40 320 330 Hydraulic Pump Base
$95.00
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M1770T John Deere 40 320 330 Hydraulic Pump Cover
M1770T John Deere 40 320 330 Hydraulic Pump Cover
$95.00
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W248351B breather for White Planter Hydraulic Pump Assembly
W248351B breather for White Planter Hydraulic Pump Assembly
$25.00
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W248420B relief valve for internal pump on White Planter Hydraulic Pump
W248420B relief valve for internal pump on White Planter Hydraulic Pump
$125.00
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W248421B internal pump for White Planter Hydraulic Pump assembly
W248421B internal pump for White Planter Hydraulic Pump assembly
$395.00
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W248418B 38 tooth gear for White Planter Hydraulic Pump 1000 RPM PTO
W248418B 38 tooth gear for White Planter Hydraulic Pump 1000 RPM PTO
$198.00
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W248423B 32 tooth gear for White Planter Hydraulic Pump 1000 RPM PTO
W248423B 32 tooth gear for White Planter Hydraulic Pump 1000 RPM PTO
$128.00
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W248084B front housing for White Planter Hydraulic Pump
W248084B front housing for White Planter Hydraulic Pump
$128.00
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W248085B rear housing for White Planter Hydraulic Pump
W248085B rear housing for White Planter Hydraulic Pump
$128.00
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3072695R91 New International Tractor 424 444 Hydraulic Pump with Power Steering
3072695R91 New International Tractor 424 444 Hydraulic Pump with Power Steering
$477.25
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MASSEY FERGUSON TRACTOR HYDRAULIC LIFT PUMP 20C 30B 50E 230 265 699 A 1683301M92
MASSEY FERGUSON TRACTOR HYDRAULIC LIFT PUMP 20C 30B 50E 230 265 699 A 1683301M92
$1,030.00
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MASSEY FERGUSON FORKLIFT INDUSTRIAL HYDRAULIC GEAR PUMP 2500 100 54 A 1075358M1
MASSEY FERGUSON FORKLIFT INDUSTRIAL HYDRAULIC GEAR PUMP 2500 100 54 A 1075358M1
$530.00
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MASSEY FERGUSON TRACTOR HYDRAULIC PUMP 3050 3120 6110 6160 A 3382280M1
MASSEY FERGUSON TRACTOR HYDRAULIC PUMP 3050 3120 6110 6160 A 3382280M1
$615.00
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MASSEY FERGUSON TRACTOR HYDRAULIC PUMP 135 150 165 178 35X 50 65 A 1081639M91
MASSEY FERGUSON TRACTOR HYDRAULIC PUMP 135 150 165 178 35X 50 65 A 1081639M91
$715.00
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MASSEY FERGUSON TRACTOR HYDRAULIC PUMP 20C 50D 135 168 235 565 690 A 886821M94
MASSEY FERGUSON TRACTOR HYDRAULIC PUMP 20C 50D 135 168 235 565 690 A 886821M94
$500.00
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MASSEY FERGUSON TRACTOR HYDRAULIC PUMP 30 1080 165 245 290 4840 699 A 531607M93
MASSEY FERGUSON TRACTOR HYDRAULIC PUMP 30 1080 165 245 290 4840 699 A 531607M93
$775.00
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Ford Hydraulic Pump Safety Valve E1ADDN984
Ford Hydraulic Pump Safety Valve E1ADDN984
$27.90
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Hydraulic Pump John Deere Tractor Cotton Backhoe 1830 1840 2130 2350 2440 2550
Hydraulic Pump John Deere Tractor Cotton Backhoe 1830 1840 2130 2350 2440 2550
$1,308.95
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Hydraulic Pump John Deere Tractor Backhoe Loader Skidder Grader 401D 300B 302A
Hydraulic Pump John Deere Tractor Backhoe Loader Skidder Grader 401D 300B 302A
$1,355.95
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John Deere Tandem Hydraulic Pump AR55346
John Deere Tandem Hydraulic Pump AR55346
$499.00
Time Remaining: 1d 2h 17m

David Brown Hydraulic Pump Shaft 4 3 4 long K200464
David Brown Hydraulic Pump Shaft 4 3 4 long K200464
$85.69
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Allis Chalmers 5040 Hydraulic Pump
Allis Chalmers 5040 Hydraulic Pump
$400.00
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TX11234 HYDRAULIC PUMP FOR ALL LONG OLD SYLE TRACTORS
TX11234 HYDRAULIC PUMP FOR ALL LONG OLD SYLE TRACTORS
$149.30
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SEAL KIT FOR HYDRAULIC PUMP FOR LONG TRACTOR
SEAL KIT FOR HYDRAULIC PUMP FOR LONG TRACTOR
$17.90
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John Deere hydraulic piston pump parts
John Deere hydraulic piston pump parts
$15.00 (1 Bid)
Time Remaining: 1d 3h 18m

New Massey Ferguson Hydraulic Pump 519343m93
New Massey Ferguson Hydraulic Pump 519343m93
$646.80
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Massey Ferguson Hydraulic Pump Chamber 184471m1
Massey Ferguson Hydraulic Pump Chamber 184471m1
$28.20
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New Tandem Hydraulic Pump for David Brown A310386
New Tandem Hydraulic Pump for David Brown A310386
$948.33
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11050 Giant Tire Bead Breaker Used with 10000 PSI 700 bar Air hydraulic pump
11050 Giant Tire Bead Breaker Used with 10000 PSI 700 bar Air hydraulic pump
$945.00
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Ford TLB HYD pump A D8NN600AA Hydraulic pump for 445540545A 550 555 4500
Ford TLB HYD pump A D8NN600AA Hydraulic pump for 445540545A 550 555 4500
$653.02
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NCA905 FORD TRACTOR HYDRAULIC PUMP NOSE HOUSING NEW OLD STOCK
NCA905 FORD TRACTOR HYDRAULIC PUMP NOSE HOUSING NEW OLD STOCK
$125.00
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Tractor Cessna Hydraulic Pump IH Case Allis John Deere Ford
Tractor Cessna Hydraulic Pump IH Case Allis John Deere Ford
$599.99
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AR56160 R Remanufactured Rebuilt Hydraulic Pump Fits John Deere 444 544 544A 644
AR56160 R Remanufactured Rebuilt Hydraulic Pump Fits John Deere 444 544 544A 644
$1,723.24
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New Front Loader Hydraulic Pump Massey Ferguson Ford 600 700 900 2N 8N 9N NAA ++
New Front Loader Hydraulic Pump Massey Ferguson Ford 600 700 900 2N 8N 9N NAA ++
$291.37
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Ford Tractor Hydraulic Pump Wobble Shaft Part  C5NN966A or D9NN966AA New
Ford Tractor Hydraulic Pump Wobble Shaft Part C5NN966A or D9NN966AA New
$84.50
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