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Item # 3192, Rol-Seal® RSA and RSB Series 2000 Resolution Per Minute (rpm) Maximum Continuous Speed Hydraulic Motor

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When Von Ruden® introduced the first hydraulic motors built on our Rotary Abutment principle, their performance and durability advantages were obvious. Today, that same set of benefits are just as valid.




Specifications  · Features  · Advantages  · Other Motor Designs for Other Applications  · Note

Specifications

Brands
Rol-Seal®
Von Ruden®

Displacement
2.0 in³/rev

Continuous Flow
18 gpm

Intermittent Flow
31 gpm

Maximum Continuous Speed
2000 rpm

Maximum Intermittent Speed
3500 rpm

Continuous Pressure
2500 psi

Intermittent Pressure
3000 psi

Peak Pressure
3750 psi

Maximum Theoretical Torque
796 in·lb

Maximum Intermittent Torque
955 in·lb

Weight
13.0 lb

Rotational Moment of Inertia (Wk2)
1.23 lb·in²

Radial Load Capacity1
600 lb

Thrust Load Capacity
600 lb
1 Based on load located 1" from mounting flange.


Features
Regardless of size, each model delivers:
  1. High Starting Torque: Typically this is in the 92-94% range. That means overall hydraulic systems savings because designers can use smaller motors. Higher starting torque also means increased vehicle gradeability and more drawbar pull.
  2. High Running Torque: Friction loss and viscous drag at high speed are both lower due to the internal rolling contact seal elements. Large flow passages reduce internal pressure drop. Typical breakaway pressure at a no load condition is less than 10 PSI.
  3. More Useable Speed: Smooth running at low speed (less than 10 RPM) with minimal performance loss at high speeds (up to 3,500 RPM). Smooth performance over an unusually wide speed range. Low speed characteristics often eliminate the need for additional speed reduction.
  4. Long Life: Performance stays relatively constant over the motor’s working life. The internal rolling seal elements are essentially frictionless and wear compensating. The rolling seal element design also tolerates a high degree of contamination so the motors perform well in free-wheeling applications.


Advantages
The positive contact provided by rolling seals between rotor and housing and between abutments and seal plates creates relatively frictionless operation that makes these motors relatively insensitive to wear over their exceedingly long working life.


Other Motor Designs for Other Applications
When accuracy and precise repeatability are your application’s primary concern, you should consider our line of Axial Vane hydraulic motors.


Note
  1. Intermittent conditions must be less than 10% of every minute.
  2. Inlet and return pressures are not to exceed ratings listed above.
  3. Peak conditions are to be less than 1% of every minute.
  4. Intermittent speed and peak pressure must not occur simultaneously.


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 DOWNLOADS 

Brochure for Rol-Seal® MRSA, MRSSA, RSA, RSB, and RSC Series Hydraulic Motors
(PDF, 14157KB)