Sauer Hydraulic Piston Pump Assy LRR030
Elephant fluid power supply A series of Sauer Piston pumps
Best choice for replacment.
Photos of LRR030
Sauer 90 pump
Hydraulic pump Sauer Sundstrand 90R series 90R030, 90R042, 90R055, 90R075, 90R100, 90R130, 90R180, 90R250
90L series 90L030, 90L042, 90L055, 90L075, 90L100, 90L130, 90L180, 90L250
Closed circuit
Size 030 042 055 075 100 130 180 250
Series 90
Maximum loads of 480 bar (6960 psi)
Controls device: CA, DC, DD, KA , KP, HF, MA, MB, etc.
Series 90 axial piston variable displacement pumps are of cradle swash plate design with variable displacement, and are intended for closed circuit appliions. The flow rate is proportional to the pump input speed and displacement. The latter is infinitely adjustable between zero and maximum displacement. Flow direction is reversed by tilting the swash plate to the opposite side of the neutral (zero displacement) position.
- The Series 90 - Advanced Technology Today
- 8 Sizes of Variable Displacement Pumps
- Complete Family of Control Systems
- Proven Reliability and Performance
- Optimum Product Configurations
- Compact and Lightweight
Technical Data
Table of values (theoretical values, without efficiency and tolerances; values rounded)
| Sauer 90 | Dimension | 90R030
90L030 | 90R042
90L042 | 90R055
90L055 | 90R075
90L075 | 90R100
90L100 | 90R130
90L130 | 90R180
90L180 | 90R250
90L250 |
| Displacement | cm3 | 30 | 42 | 55 | 75 | 100 | 130 | 180 | 250 |
| in3 | 1.83 | 2.56 | 3.35 | 4.57 | 6.1 | 7.93 | 10.98 | 15.25 |
| Input speed | Minimum | min-1 (rpm) | 500 | 500 | 500 | 500 | 500 | 500 | 500 | 500 |
| Rated | min-1 (rpm) | 4 200 | 4 200 | 3 900 | 3 600 | 3 300 | 3 100 | 2 600 | 2 300 |
| Maximum | min-1 (rpm) | 4 600 | 4 600 | 4 250 | 3 950 | 3 650 | 3 400 | 2 850 | 2 500 |
| Max. Attainable | min-1 (rpm) | 5 000 | 5 000 | 4 700 | 4 300 | 4 000 | 3 700 | 3 150 | 2 750 |
| Theoretical | Nm/bar | 0.48 | 0.67 | 0.88 | 1.19 | 1.59 | 2.07 | 2.87 | 3.97 |
| Torque | in lb/1000 psi | 290 | 410 | 530 | 730 | 970 | 1 260 | 1 750 | 2 433 |
| Mass moment of inertia of the int. rotating parts | kg m2 | 0.0023 | 0.0039 | 0.006 | 0.0096 | 0.015 | 0.023 | 0.038 | 0.065 |
| lb • ft2 | 0.0546 | 0.0926 | 0.1424 | 0.228 | 0.356 | 0.546 | 0.902 | 1.543 |
| Weight (with MA Control) | kg | 28 | 34 | 40 | 49 | 68 | 88 | 136 | 154 |
| lb | 62 | 75 | 88 | 108 | 150 | 195 | 300 | 340 |
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