40PA60-36-37-TEFC-G Pacific Scientific
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The Pacific Scientific 40PA60-36-37-TEFC-G is part of the Permanent Magnet DC Motors series, designed for motor speed monitoring and featuring a large adapter size. It has a TEFC motor enclosure and works with compatible tachometers such as GE 5PY and Baldor BTG. The kit includes parts and instructions, with a readout and control electronics interface.
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Product Description:
The 40PA60-36-37-TEFC-G belongs to the Permanent Magnet DC Motors series manufactured by Pacific Scientific. Within that product line, this model serves as a drive component that pairs a permanent-magnet motor with an external tachometer so closed-loop controllers can maintain commanded shaft speed in automated machinery. Its role in industrial automation is to generate stable mechanical output while also providing a feedback signal that allows the drive electronics to correct for load changes or line-voltage fluctuations. That arrangement suits speed-regulated conveyors, feeders, and similar axes that depend on continuous feedback rather than open-loop motor operation.
The adapter furnished for this motor is size Large, giving the shaft extension the clearance needed to couple directly to common process equipment without additional spacers. For speed feedback, the frame accepts the tachometers designated GE 5PY and Baldor BTG; either device mounts on the rear end bell and produces a proportional DC voltage used by speed regulators. Electrical connections are routed through a dual-channel interface that supports both readout and control electronics, enabling an operator display and a governor card to share the same signal. This arrangement keeps the connection scheme simple when both display and regulation functions are needed at the same time. The laminated steel housing is sealed in a TEFC configuration, so cooling air is circulated internally and contaminated ambient air cannot reach the windings. Because the tachometer excitation is user-supplied, the installation must include a stable low-voltage source so the feedback voltage remains linear over the operating range.
The shipment includes Parts and Instructions that match the mechanical drawings, allowing field assembly without special tools. The order code must carry the suffix -84 so the flange, rotor, and tachometer boss align with legacy brackets. This layout preserves the fit of mating hardware used on compatible machines. Its built-in sensing arrangement supports Motor Speed Monitoring, which lets a drive card cut power if the shaft drifts outside tolerance.
