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ORB-S

ORB-S

High performance hydraulic motor

  • ● Made in Japan quality
  • ● Features higher torque version of ORB-M
ApplicationsPower source for construction machine, agricultural vehicle, boat etc.
Load-bearing capacityPermissible for radial load and thrust loadMore detailed specs (Japanese)
Serial/parallel connectionBoth connections applicable
Rotation directionBoth directions usable (Clockwise/Counter-clockwise)

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)
05054.0103457 (15.06)68 (17.96)11013515.5 (2248.09)19.0 (2755.72)7 (1015.27)*note 57.1 (15.65)
07071.479076 (20.08)1531837.2 (15.87)
10098.55882102467.4 (16.31)
120118.447825230018.5 (2683.20)7.6 (16.76)
130*129.043825033014.0 (2030.53)7.7 (16.98)
160165.334632238317.0 (2465.65)8.0 (17.64)
190189.83073634328.1 (17.86)
205205.02734034758.3 (18.3)
240235.524039549512.0 (1740.46)15.5 (2248.09)8.5 (18.74)
280282.520141047910.5 (1522.90)12.5 (1812.98)8.9 (19.62)
310306.91844405199.1 (20.06)
380376.41514645319.0 (1305.34)10.5 (1522.90)9.6 (21.16)
410409.91384705558.5 (1232.82)10.0 (1450.38)9.9 (21.83)
Model numbering system (Japanese)Performance table (Japanese)

1: Do not drive motor with max. torque or max. pressure in more than 6 seconds.
2: Recommended hydraulic oil: ISO-VG32 or same class.
3: If output torque exceeds 280N・m, it is highly recommended to use spline shaft.
4: Max. Input torque must be less than 21MPa (3045.80 psi).
5: Max. permissible back pressure is 7MPa (1015.27psi), but in the case of operating with more than 1.8MPa (261.07 psi), 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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