33VM62-220-17 Pacific Scientific
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The Pacific Scientific 33VM62-220-17 is a PMDC servomotor that belongs to the Low Inertia PMDC Servomotors series. It features double sealed ball bearings and an ironless rotor for smooth operation. This motor also has an aluminum endbell, stainless steel shaft, and uses Alnico permanent magnets.
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Product Description:
The 33VM62-220-17 is a permanent-magnet DC servo motor manufactured by Pacific Scientific and supplied within the Low Inertia PMDC Servomotors series. Designed for closed-loop motion control, it delivers rapid acceleration and repeatable positioning on compact axes in automated assembly, electronic component insertion, and light material handling. It is well suited to applications that require frequent starts, stops, and small corrective moves during normal operation. Its compact servo format also fits machines where quick settling time is important.
Mechanical reliability begins with double-sealed ball bearings that keep grease inside the races and foreign particles out, extending service life in dusty plant environments. Routine service downtime is reduced because the brushes are field-replaceable, allowing brush replacement without dismantling the armature stack. The endbell is cast from aluminum, so heat produced by current flow is conducted away from the brush gear while maintaining a low overall weight. Dynamic response is helped by the motor’s low-inertia core, reducing the torque needed to change speed and enabling tight following of servo commands. Magnetic excitation comes from an Alnico permanent magnet ring, which supplies stable flux over a wide temperature range and eliminates the need for external field windings.
Electrically, the machine is classified as a PMDC servomotor, so proportional torque is available directly from armature current without commutation electronics. An ironless rotor eliminates cogging, producing smooth velocity at low speeds and reducing eddy-current losses associated with laminated armatures. Output torque is delivered through a stainless steel shaft that resists corrosion when coupled to gearboxes or pulleys in humid production areas. This combination supports steady low-speed motion and responsive changes in direction on light-duty servo axes. It can be used where smooth torque delivery is important for feed rollers, indexing devices, and other compact motion modules.
Frequently Asked Questions about 33VM62-220-17:
Q: What type of bearings are used in the 33VM62-220-17 servomotor?
A: The 33VM62-220-17 features double sealed ball bearings for increased durability and reduced maintenance.
Q: Are the brushes on the 33VM62-220-17 servomotor field replaceable?
A: This motor is equipped with field replaceable brushes for easier servicing and longer operational life.
Q: What type of magnet is used in the 33VM62-220-17 servomotor?
A: The 33VM62-220-17 model uses Alnico permanent magnets to generate its magnetic field.
Q: What is the shaft material of the 33VM62-220-17 servomotor?
A: The shaft is constructed from stainless steel, providing resistance to corrosion and wear.
Q: What type of rotor does the 33VM62-220-17 servomotor use?
A: This servomotor utilizes an ironless rotor design to support low inertia applications.
