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ORB-PB

ORB-PB

Hydraulic motor with built-in reducer and brake

  • ● Hybrid power motor with reducer and mechanical brake
  • ● Made in Japan quality
  • ● Space saving design due to integration of motor/brake/reducer
  • ● 4 times high torque due to built-in reducer (1/4)
  • ● Anti self-actuating structure by mechanical brake (brake torque: 800N・m)
ApplicationsPower source for winch, hoist for vehicle, fishing boat, construction machine, industrial machine etc.

Specifications

○ Reduction ratio:1/4  ○ Max. flow rate: 70L/min (15.39gal/min) ○ Radial load capacity: 9800N  ○ Thrust load capacity: 8670N ○ Relief pressure: 1.0MPa (145.04 psi) ○ Brake torque: 800N・m

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)
05054.025957 (15.06)68 (17.96)44054015.5 (2248.09)19.0 (2755.72)7 (1015.27) *Note 431.0 (68.34)
07071.419870 (18.49)61273231.1 (68.56)
10098.514784098431.3 (69.00)
120118.41201000120018.5 (2683.20)31.5 (69.45)
130129.0110130014.0 (2030.53)31.6 (69.67)
160165.38710.5 (1522.90)14.5 (2103.05)31.9 (70.33)
190189.8779.5 (1377.86)12.7 (1841.98)32.0 (70.55)
205205.0688.5 (1232.82)11.5 (1667.94)32.2 (70.99)
240235.5607.5 (1087.79)9.8 (1421.37)32.4(71.43)
280282.5506.5 (942.75)8.2 (1189.31)32.8 (72.31)
310306.9466.0 (870.23)7.5 (1087.79)33.0 (72.75)
380376.4384.5 (652.67)6.3 (913.74)33.5 (73.85)
410409.9355.7 (826.72)33.8 (74.52)
Model numbering system(Japanese)Performance table(Japanese)
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: Max. input pressure must be less than 21MPa (3045.80psi).
4: Max.permissible back pressure is 7MPa (1015.27psi), but in the case of operating with more than 1.8MPa (261.07psi), drain piping is required to protect oil sealing.
5: To release brake surely, secure the pressure which must be larger than relief pressure when motor is actuated.
6: If pressure remains in pilot port, brake doesn’t work rightly.
7: Displacement capacity per one rotation is 4 times larger than above theoretical displacement.
8: ΔP means differential pressure.
9: Unit weight of 4 bolt flange model is 2.1kg(4.63lbs) heavier than above weight.
10: Gear oil is filled by NOP® factory before shipping out.

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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