ORB-SR
Hydraulic motor with mechanical brake
- ● Made in Japan quality
- ● Built-in mechanical brake with taper roller bearing
- ● No piping is required because of brake relief system with internal pilot
| Application | Power source for construction machine/vehicle, fishing boat, etc | |
|---|---|---|
Specifications
| Size | Theoretical Displacement (cm3/rev) | Normal Continuous Revolution (rpm) | Normal Continuous Flow rate ℓ/min (US gal/min) | Max. Instantaneous Flow rate ℓ/min (US gal/min) | Normal Continuous Torque (Nm) | Max. Instantaneous Torque (Nm) | Normal Continuous Pressure △P MPa (psi) | Max. Instantaneous Pressure △P MPa (psi) | Permissible Back Pressure MPa (psi) | Approx. Weight kg(lbs) | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| B16/B20 | B30 | ||||||||||
| 050 | 54.0 | 1034 | 57(15.1) | 68 (17.96) | 110 | 135 | 15.5 (2248.09) | 19.0 (2755.72) | 7 (1015.27) *See note 4 | 13.5 (29.76) | 14.4 (31.75) |
| 070 | 71.4 | 790 | 76 (20.08) | 153 | 183 | 13.7 (30.20) | 14.6 (32.19) | ||||
| 100 | 98.5 | 588 | 210 | 246 | 14.0 (30.87) | 14.9 (32.85) | |||||
| 120 | 118.4 | 478 | 252 | 300 | 18.5 (2683.20) | 14.1 (31.09) | 15.0 (33.07) | ||||
| 130 | 129.0 | 438 | 250 | 330 | 14.0 (2030.53) | 14.3 (31.526) | 15.2 (33.51) | ||||
| 160 | 165.3 | 346 | 322 | 383 | 17.0 (2465.65) | 14.6 (32.19) | 15.5 (34.17) | ||||
| 190 | 189.8 | 307 | 363 | 432 | 14.7 (32.41) | 15.6 (34.39) | |||||
| 205 | 205.0 | 273 | 403 | 475 | 14.9 (32.85) | 15.8 (34.83) | |||||
| 240 | 235.5 | 240 | 395 | 495 | 12.0 (1740.46) | 15.5 (2248.09) | 15.1 (33.29) | 16.0 (35.274) | |||
| 280 | 282.5 | 201 | 410 | 479 | 10.5 (1522.90) | 12.5 (1812.98) | 15.5 (34.17) | 16.4 (36.16) | |||
| 310 | 306.9 | 184 | 440 | 519 | 15.7 (34.61) | 16.6 (36.60) | |||||
| 380 | 376.4 | 151 | 464 | 531 | 9.0 (1305.34) | 10.5 (1522.90) | 16.2 (35.72) | 17.1 (37.70) | |||
| 410 | 409.9 | 138 | 470 | 555 | 8.5 (1232.82) | 10.0 (1450.38) | 16.5 (36.38) | 17.4 (38.36) | |||
| Model numbering system(Japanese) | Performance table(Japanese) | ||||||||||
2: Recommended hydraulic oil: ISO-VG32 or same class.
3: Input pressure must be less than 21MPa (3045.80psi) at maximum.
4: Max.permissible back pressure is 7MPa(1015.27SPI), but in the case operating more than 1.8MPa (261.07PSI), drain-piping is required to protect oil sealing.
5: To release brake securely, the pressure level for motor must be more than one for releasing brake.
6: To activate brake serurely, hydraulic circuit to stop motor must be ABT-Open.
7: Consult with NOP customer support if you use hydraulic motor under the condition that outut torque exceeds 280Nm, or revolution speed exceeds 500rpm.
8: △ means differential pressure
9: Inpossible to install counter balance valve and counter balance brake valve in parallel.
Specification of brake system
| Mechanical brake Specification | Character | Brake torque | Brake relief pressure |
|---|---|---|---|
| B16 | 160N・m | 1.6 MPa (232.06PSI) | |
| B20 | 200N・m | 2.0 MPa (290.08PSI) | |
| B30 | 300N・m | 2.0 MPa (290.08PSI) |
FAQ
- Overview of NOP® Orbmark® motor
-
NOP® Orbmark® is a type of hydraulic motor, driven by internal gear and fluid flow. Nippon Oil Pump has a variety of the line up/variation of its motor and also provides many type of accessories like reducer, control valve. All Orbmark® motors are manufactured/assembled/Inspected in NOP® factories in Japan and provides high-quality products to the many customers.
- Overview of high performance motor ORB-S
-
High performance motor ORB-S series has a built-in taper-roller bearing, having high durability against radial/thrust load.
Its motor is able to receive the high pressure in intake port, and NOP® unique structure of "X-Ring" and "Double-tight processing" prevents troubles by oil-leaking.
- Specs and performance chart of Orbmark® motor
-
See below link to check the basic specs/type of Orbmark motor
Model list of Orbmark® motor (Japanese)See below link to check performance chart of Orbmark® motor
Performance chart of Orbmark® motor
Contact us if you have something unclear.
If you have any question on NOP® products, please take a look at "FAQ" at the first place.
If you can not find suitable answer, please give your inquiry via "Contact to" or phone-call.
