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R21GMNA-HS-LB-NV-02 by Pacific Scientific

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The Pacific Scientific R series servomotors are available in five frame sizes ranging from 2 to 7.5 square inches, offering a wide continuous torque range from 0.32 to 50 Nm. Known for their exceptional inertia torque ratios, these servomotors are engineered to excel in dynamic applications within the automation industry. They are available in both metric and NEMA standards, subdivided into models R20, R30, R40, R60, and R80. Utilizing Samarium Cobalt magnets, these motors ensure smooth operation across all speed ranges, making them suitable for demanding industrial environments.

Technical Specifications

Continuous Stall Current
2.5 ARMS
Continuous Stall Torque
1.3 Nm (11.5 lb-in)
Current At Peak Torque
7.3 ARMS
Inductance (line-to-line)
23.0 mH
Inertia
0.071 kgm^2 x 10^-3 (0.63 lb-in-sec^2 x 10^-3)
Peak Torque
3.70 Nm (32.8 lb-in)
Resistance (line-to-line)
7.3 Ohms
Static Friction (max)
0.03 Nm (0.23 lb-in)
Thermal Resistance
0.93 deg. C/Watt
Thermal Time Constant
20.0 min
Torque Constant (rms)
0.6 Nm/ARMS (5.3 lb-in/ARMS)
Typical Rated Speed @ 240v Ac, 320v Dc Bus
4,500 RPM
Viscous Damping Coefficient
0.005 Nm/kRPM (0.04 lb-in/kRPM)
Voltage Constant (rms)
0.36 VRMS/rad/sec (37.7 VRMS/kRPM)
Weight (motor Only)
2.5 kg (5.5 lbs)

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