PMB32B-00114-00
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The PMB32B-00114-00 is a NEMA Size 34 brushless servo motor with a continuous stall torque of 1.54 Nm (13.6 lb-in). Manufactured by Pacific Scientific, it is part of the PMB Brushless Servomotors series and weighs 2.9 kg (6.4 lbs). This motor features a digital encoder with commutation.
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Product Description:
The PMB32B-00114-00 is a PMB brushless series permanent magnet servo motor from Pacific Scientific. It operates from a 240V AC and features a flat shaft that makes integration simple with various machines. The motor is designed in a rugged IP40 housing that protects against environmental pollutants to ensure long-lasting durability
The PMB32B-00114-00 motor is equipped with double-shielded protective bearing that can rotates the shaft at a peak achievable speed of 6000 RPM and generates a maximum torque of 11.40 Nm at ambient conditions. It has a continuous stall current of 2.7 Arms and its inertia value is 0.00027 kg·m², which ensures rapid acceleration and deceleration in dynamic scenarios. The motor’s thermal impedance is 0.920 °C/W and its heat dissipation value is 30 minutes that contributes in its self-cooling mechanism. It mounts through a heat sink of size 10 x 10 x 1/4 inches for efficient heat dissipation to maintain an optimal operating temperature. The PMB32B-00114-00 motor is equipped with a 2048 ppr encoder system that support commutation as well to provide position and speed control. It comes with AMP mini Mate-N-Lock® connectors for providing secure and reliable electrical connections for both power and feedback. The unit weighs 4.4 kg and possess a total length of 6.78 inches, while its shaft measures 25.4 mm in length and comes without a protective seal.
The PMB32B-00114-00 motor features a maximum static friction of 0.12 Nm and its viscous damping factor is rated as 0.026 Nm/krpm. It comes with standard features but extends it support for special customizable specifications like sealing ring and thermistor inclusion if needed. This servo motor generates 3.84 Nm of torque at all times and its internal structure is designed from 8 pole pairs.
Frequently Asked Questions about PMB32B-00114-00:
Q: How does the 8-pole design of the PMB32B-00114-00 enhance its performance?
A: The 8-pole configuration increases torque density and smoothness at lower speeds. It also reduces cogging torque, improving precision and steady motion control.
Q: Why is a flat shaft used on the PMB32B-00114-00?
A: A flat shaft enables secure, backlash-minimized coupling with various machine flanges or couplings. It ensures easy mechanical alignment and torque transmission.
Q: What benefit does the double-shielded bearing bring to PMB32B-00114-00?
A: The double-shielded bearing protects against particulate contamination and retains lubrication. This extends bearing life and supports high-speed operation.
Q: How does the low inertia (0.00027 kg·m²) influence PMB32B-00114-00 dynamics?
A: The low inertia allows swift acceleration and deceleration, improving response to control inputs. It enhances precision in applications with frequent speed changes.
Q: What role does the thermal time constant of 30 minutes play in PMB32B-00114-00 operation?
A: It indicates how long the motor takes to reach thermal equilibrium under load. This helps predict temperature rise and manage thermal load during intermittent high-duty cycles.
