Hydraulic Bent Axis Variable Displacement Motor 51V060, 51V080, 51V110, 51V160, 51V250, 51D060, 51D080, 51D110, 51D160, 51D250, 51C060, 51C080, 51C110, 51C160, 51C250
Description |
Technical Data
Table of values (theoretical values, without efficiency and tolerances; values rounded)
Specific Data | Model of Sauer 51 motor | ||||
Dimension | 51V060 | 51V80 | 51V110 | 51V160 | 51V250 |
51D060 | 51D80 | 51D110 | 51D160 | 51D250 | |
51C060 | 51C80 | 51C110 | 51C160 | 51C250 | |
Displacement maximum Vgmax cm3 | 60 | 80.7 | 109.9 | 160.9 | 250 |
[in3] | [3.66] | [4.92] | [6.71] | [9.82] | [15.26] |
Displacement minimum Vgmin cm3 | 12 | 16.1 | 22 | 32.2 | 50 |
[in3] | [0.73] | [0.98] | [1.34] | [1.96] | [3.05] |
Rated flow Q l/min | 216 | 250 | 308 | 402 | 550 |
[US gal/min] | [57] | [66] | [81] | [106] | [145] |
l/min | 264 | 323 | 396 | 515 | 675 |
Maximum flow Qmax [US gal/min] | [70] | [85] | [105] | [136] | [178] |
Mass moment kgm2 | 0.0046 | 0.0071 | 0.0128 | 0.0234 | 0.048 |
J [lb•ft2] | [0.1092] | [0.1685] | [0.3037] | [0.5553] | [1.1580] |
Maximum corner power P corner kW | 336 | 403 | 492 | 644 | 850 |
max. [hp] | [450] | [540] | [660] | [864] | [1140] |
Weight (approx.) m kg | 28 | 32 | 44 | 56 | 86 |
[lb] | [62] | [71] | [97] | [123] | [190] |
Type of mounting | Four (4) bolt flange, SAE or DIN-flange configuration. Two (2) bolt flange cartridge motor configuration. |
inimum displacement limiter
All Series 51 and 51-1 motors incorporate mechanical displacement limiters. The minimum displacement of the motor is preset at the factory with a set screw in the motor housing. A tamper-proof cap is provided.
Hydraulic fluids
Ratings and data are based on operating with hydraulic fluids containing oxidation, rust and foam inhibitors. These fluids must possess good thermal and hydrolytic stability to prevent wear, erosion and corrosion of the internal components.
Fire resistant fluids are also suitable at modified operating conditions.
Suitable Hydraulic fluids:
- Hydraulic fluids per DIN 51 524, part 2 (HLP)
- Hydraulic fluids per DIN 51 524, part 3 (HVLP)
- API CD, CE and CF engine fluids per SAE J183
- M2C33F or G automatic transmission fluids (ATF)
- Agricultural multi purpose oil (STOU)
- Premium turbine oils
Temperature and viscosity
Temperature and viscosity requirements must be concurrently satisfied. The data shown in the tables assume petroleum-based fluids, are used. The high temperature limits apply at the hottest point in the transmission, which is normally the motor case drain. The system should generally be run at or below the rated temperature. The maximum temperature is based on material properties and should never be exceeded. Cold oil will generally not affect the durability of the transmission components, but it may affect the ability to flow oil and transmit power; therefore temperatures should remain 16 °C [30 °F] above the pour point of the hydraulic fluid. The minimum temperature relates to the physical properties of component materials.
For maximum unit efficiency and bearing life the fluid viscosity should remain in the recommended operating range. The minimum viscosity should be encountered only during brief occasions of maximum ambient temperature and severe duty cycle operation. The maximum viscosity should be encountered only at cold start. Heat exchangers should be sized to keep the fluid within these limits. Testing to verify that these temperature limits are not exceeded is recommended.