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ORB-A

ORB-A

NOP® hydraulic motor with world standard specs

  • ● Made in Japan quality
  • ● High durability because of heat-shock guard design
  • ● Unique and tough structure against oil leaking
ApplicationsPower source for agricultural vehicle, construction machine, boat etc.

Specifications

SizeTheoretical 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 (N・m)Max. Instantaneous Torque (N・m)Normal Continuous Pressure △P MPa (psi)Max. Instantaneous Pressure △P MPa (psi)Permissible Back Pressure MPa (psi)Approx. Weight kg (lbs)
0807884668 (17.96)68 (17.96)23534321.0 (3045.80)30.9 (4481.67)7 (1015.27) *Note 510.1 (22.27)
1009769069 (18.23 )87 (22.98)28838428.0 (4061.06)10.3 (22.71)
12512355270 (18.49)95 (25.10)36547610.6 (23.37)
16015846075 (19.81)44958810.9 (24.03)
20019537355171711.1 (24.47)
25024429868082126.0 (3770.99)11.8 (26.01)
29028825373783420.023.0 (3335.87)12.2 (26.90)
31530623874484819.022.0 (3190.84)12.4 (27.34)
39039318576787415.016.5 (2393.13)13.2 (29.10)
41041017777488414.516.0 (2320.61)13.0 (28.66)
Model numbering systemPerformance table
1: Do not drive motor with max. torque/max. pressure in more than 6 seconds.
2: Recommended hydraulic oil: ISO-VG32 or same class.
3: If φ1” shaft is used, it is highly recommended to actuate motor under condition that output torque doesn’t exceed 280N・m.
4: Max. input pressure must be less than 30.9MPa (4481.67psi) and do not exceed max. output torque.
5: Max.permissible back pressure is 7MPa (1015.27psi), but in the case of operating with more thn 1.8MPa (261.07psi), drain piping is required to protect oil sealing.
6: ΔP means differential pressure.

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

Check other question

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.

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