Hydraulic orbital motors MS are a mechanical actuator that converts hydraulic pressure and flow into torque and angular displacement or rotation.
The hydraulic orbital motor is the rotary counterpart of the hydraulic cylinder as a linear actuator. Broadly speaking, these motors use hydraulic fluid as part of closed hydraulic circuits in hydraulic machinery. disk valve and geroller in design allows for high torque values to be achieved at low speeds.
Conceptually, a hydraulic motor should be interchangeable with a hydraulic pump because it performs the opposite function – similar to the way a DC electric motor is theoretically interchangeable with a DC electrical generator. However, most hydraulic pumps cannot be used as hydraulic motors because they cannot be back-driven. Also, a hydraulic motor is usually designed for working pressure on both sides of it.
Orbital Motors - MS
Disc Value, Geroller Design, High Torques Low Speed
| Part Number & Pricing | |
| 11/4" Straight Keyed SAE A 4Hole Mount | List Price |
| MSY80COU | $827.00 |
| MSY100COU | $839.00 |
| MSY125COU | $861.00 |
| MSY160COU | $890.00 |
| MSY200COU | $903.00 |
| MSY250COU | $926.00 |
| MSY15COU | $985.00 |
| MSY400COU | $1,046.00 |
| MSY475COU | $1,367.00 |
| MSY525COU | $1,397.00 |
| MSY565COU | $1,429.00 |
| Specifications | |||||
| cc/rev | Max Cont Speed - rpm | Max Cont Flow - lpm | Max Cont P D - bar | Max Cont I P - bar | Max Cont Torque - Nm |
| 80.5 | 810 | 65 | 175 | 210 | 240 |
| 100 | 750 | 75 | 205 | 210 | 305 |
| 125.7 | 600 | 75 | 205 | 210 | 375 |
| 159.7 | 470 | 75 | 205 | 210 | 490 |
| 200 | 375 | 75 | 200 | 210 | 610 |
| 250 | 300 | 75 | 200 | 210 | 720 |
| 314.9 | 240 | 75 | 200 | 210 | 825 |
| 397 | 185 | 75 | 160 | 210 | 865 |
| 474.6 | 155 | 75 | 140 | 210 | 850 |
| 522.7 | 145 | 75 | 80 | 210 | 850 |
| 564.9 | 130 | 75 | 75 | 210 | 850 |
#P D = Pressure Drop #I P = Inlet Pressure
| Ordering Code Mounting - 1 | |
| Code | Add to List |
| A | $0.00 |
| Q | $20.00 |
| F | $45.00 |
| W | $40.00 |
| Ordering Code Options - 2 | |
| Code | Add to List |
| E | $45.00 |
| Ordering Code Shaft - 4 | |
| Code | Add to List |
| SH | $15.00 |
| Seal Kits & Shaft Seals | ||
| Part Number | Description | List Price |
| MS-SK | Seal Kit | $120.00 |
| MSS-SK | Seal Kit | $40.00 |
Dimension & Data Mounting sheet for MS Orbital Motors
Dimensions and Mounting Data
| Type | L, mm [in.] | L2, mm [in.] | LE, mm [in.] |
| MS(F, A) 80 | 168 [6.61] | 124 [ 4.88] | 173 [6.81 |
| MS(F, A) 100 | 171 [6.73] | 128 [ 5.04] | 177 [6.97] |
| MS(F, A) 125 | 176 [6.93] | 132 [5.20] | 181 [7.13] |
| MS(F, A) 160 | 182 [7.17] | 138 [5.43] | 187 [7.36] |
| MS(F, A) 200 | 189 [7.44] | 145 [5.71] | 194 [7.64] |
| MS(F, A) 250 | 197 [7.76] | 154 [6.06] | 203 [7.99] |
| MS(F, A) 315 | 209 [8.23] | 165 [650] | 214 [8.43] |
| MS(F, A) 400 | 223 [8.78] | 179 [7.05] | 228 [8.98] |
| MS(F, A) 475 | 237 [9.33] | 193 [7.60] | 242 [9.53] |
| Type | L, mm [in.] | L2, mm [in.] | LE, mm [in.] | L1, mm [in.] |
| MSW 80 | 129 [5.08] | 87 [3.43] | 173 [6.81 | 14,0 [.55] |
| MSW 100 | 133 [5.23] | 91 [3.58] | 177 [6.97] | 17,4 [.69] |
| MSW 125 | 137 [5.39] | 95 [3.74] | 181 [7.13] | 21,8 [.86] |
| MSW 160 | 143 [5.63] | 101 [3.98] | 187 [7.36] | 27,8 [1.09] |
| MSW 200 | 150 [5.91] | 108 [4.25] | 194 [7.64] | 34,8 [1.37] |
| MSW 250 | 159 [6.26] | 117 [4.61] | 203 [7.99] | 43,5 [1.71] |
| MSW 315 | 170 [6.69] | 128 [5.04] | 214 [8.43] | 54,8 [2.16] |
| MSW 400 | 184 [7.24] | 143 [5.63] | 228 [8.98] | 69,4 [2.73] |
| MSW 475 | 198 [7.79] | 156 [6.14] | 242 [9.53] | 82,6 [3.25] |