R35JENA-R2-NS-NV-00 Pacific Scientific
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The Pacific Scientific R35JENA-R2-NS-NV-00 is a servo motor from the R Servomotors series, featuring a 3.25 inch square frame and a stack length of 5 inches. It has a continuous stall torque of 3.8 Nm, peak torque of 10.1 Nm, and uses a rare earth samarium cobalt magnet. The motor operates at a rated speed of 1700 RPM and provides primary feedback through a frameless resolver transmitter, size 21.
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Product Description:
The R35JENA-R2-NS-NV-00 is a servo motor produced by Pacific Scientific within the R Servomotors series. It is intended for closed-loop positioning and velocity control on packaging lines, pick-and-place heads, and other motion axes where repeatable torque delivery is required. Its compact 3.25-inch square frame simplifies integration into machinery with limited installation space while providing a rigid motor housing for gear-driven and direct-coupled assemblies.
This model delivers a continuous stall torque of 3.8 Nm, allowing it to hold load torque at zero speed without thermal overload. For short acceleration bursts, it can reach a peak torque of 10.1 Nm, providing additional capacity for rapid indexing and intermittent load changes. Its rated output speed is 1700 rpm, balancing cycle time and mechanical life in gear-driven assemblies. Dynamic response is supported by a rotor inertia of 0.13 × 10⁻³ kg·m², so drive commands translate into shaft acceleration with minimal delay. The motor is supplied without a holding brake, so external clamping or drive torque must secure vertical loads when power is removed. Its standard housing does not include a shaft seal, making installation in a clean, dry enclosure appropriate for protecting the shaft opening and internal components from contaminants.
Torque density is improved through the use of rare-earth samarium-cobalt magnets, which maintain strong magnetic flux at elevated operating temperatures. Position feedback is provided by a frameless size 21 resolver, which supplies analog sine-cosine signals for absolute shaft-angle tracking by the connected servo drive. A stack length of 5 inches increases the active copper volume and supports the windings under sustained loading. The medium winding matches the motor’s voltage constant to typical DC bus levels from 160 to 320 VDC. The inch-based mounting interface supports installation with compatible machine hardware, while the absence of secondary feedback devices keeps the feedback arrangement limited to the resolver.
