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ORB-SB

ORB-SB

Hydraulic motor with mechanical brake to secure stopping power

  • ● Made in Japan quality
  • ● Long product life and anti-rust structure by multiplate wet brake system
  • ● Tough structure for radial load by designated bearing in output shaft
  • ● Safety and serured operation by specific brake mechanism
ApplicationsPower source for construction machine/vehicle, fishing boat, etc
*By installing hydraulic control valve like counter balance valve, counter balance brake valve in this motor, quicker operation and more secured control/stop can be realized.

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)
B10/B20B30
05054.0103457 (15.05)68 (14.96)11013515.5 (2248.09)19.0 (2755.72)7 (1015.27)
*Note 5
15.1 (33.29)15.9 (35.05)
07071.479076 (16.72)15318315.3
(33.73)
16.1 (35.49)
10098.558821024615.5 (34.17)16.3 (35.94)
120118.447825230018.5 (2683.20)15.8 (34.83)16.6 (36.60)
130129.043825033014.0 (2030.53)15.9 (35.05)16.7 (36.817)
160165.334632238317.0 (2465.65)16.2 (35.72)17.0 (37.48)
190189.830736343216.3 (35.94)17.1 (37.70)
205205.027340347516.5 (36.38)17.3 (38.14)
240235.524039549512.0 (1740.46)15.5 (2248.09)16.7 (36.82)17.5 (38.58)
280282.520141047910.5 (1522.90)12.5 (1812.98)17.1 (37.70)17.9 (39.46)
310306.918444051917.3 (38.14)18.1 (39.90)
380376.41514645319.0 (1305.34)10.5 (1522.90)17.8 (39.24)18.6 (41.01)
410409.91384705558.5 (1232.82)10.0
(1450.38)
18.1(39.90)18.9 (41.67)
Model naming 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: Usage of spline shaft is recommened if max. torque is more than 280N・m.
4: Input pressure must be less than 21MPa (3045.80psi) at maximum.
5: 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 implement to protect oil seal.
6: ΔP means difference pressure.

Brake specifications

Mechanical brake specificationCharacterBrake torqueBrake relief pressure
B10100N・m1.0 MPa / 145.04 PSI
B20200N・m2.0 MPa / 290.08PSI
B30300N・m2.0 MPa / 290.08 PSI

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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