PMB31B-20214-00

Product Description:

The PMB31B-20214-00 brushless servomotor is built as part of the PMB Brushless Servomotors family by Pacific Scientific. A NEMA Size 34 frame holds everything together tight, and the motor manages a max speed of 6000 rpm for setups needing fast, repeatable movement. Encoder accuracy hits 2048 ppr, giving it the sensitivity needed for jobs where a small change matters, and a rotor inertia of 1.8 x 10^-6 kg·m² lets it handle sudden starts and stops without extra wobble. Flight leads with MS connectors come standard, helping with direct cable management.

In places where space disappears quick, this model’s size makes it easier to fit into cramped electromechanical builds. The digital encoder with commutation plays a big role in keeping control slick when position or rotation checks need to happen quick. There's +4 to 24 VDC (Hall) on the main feedback and 5 V DC ±15% voltage needs at the encoder, so it settles in with plenty of different controller types. The current from the drive comes in at 2.7 ARMS at 240VAC at stall—a solid pick for machines not pausing much. Motor phases land at 3 and total poles at 8, getting smoother torque without high ripple, which matters for lines chasing fewer shutdowns for maintenance.

Threading the encoder in at 200 kHz max frequency response, the output catches fast swings from motion controllers. At just 0.3 kg max, this brushless motor trims off weight, keeping gantry arms or moving fixtures light. Topics like joint play and misalignment don’t eat up precision here. For shops run heavy on automation—or labs spinning intricate assemblies—the steady digital readout and high RPM keep it a likely fit. Flying leads suit automated panel builds, and the bright digital signal stays crisp over long sessions.