M.1015.6953 Kollmorgen
Wake Industrial LLC is not an authorized distributor of this product.
The Kollmorgen M.1015.6953 is part of the NSM Brushless Servo Motors series and features a continuous torque of 6.8 lb-in with a peak torque of 18.5 lb-in. This motor has a back emf constant of 21 V/kRPM and operates with a winding voltage of 230 V. It is equipped with a 2000-line encoder and a 26LS31 line driver.
Internal Product Review
The M.1015.6953 is a Kollmorgen NSM brushless servo motor with 6.8 lb-in continuous torque and 18.5 lb-in peak torque. A 2000-line encoder and 230 V winding support precise motion control and clean integration in servo axes. Strong torque delivery and stable feedback make the unit a very capable choice for compact positioning applications.
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Product Description:
The M.1015.6953 is a brushless servo motor produced by Kollmorgen for the NSM Brushless Servo Motors series. As a frameless torque source, it couples directly to machinery axes and supplies responsive motion control in automated assembly, packaging, and positioning equipment. The motor incorporates a load-holding brake, an incremental encoder for speed and position feedback, and windings suitable for closed-loop industrial actuation.
This model delivers a continuous shaft torque of 6.8 lb-in and tolerates momentary demands up to 18.5 lb-in without magnetic saturation. Output torque scales linearly with current because of its torque constant of 0.17 Nm/A, while the back electromotive force is 21 V/kRPM; these values support calculations of voltage and current margins across the operating range. Thermal buildup is limited by a housing-to-ambient thermal resistance of 1.6 °C/W, and the shaft can accept a radial load of 56 lb at 3,000 rpm without bearing distress. The encoder provides 2,000 lines per revolution through a 26LS31 line driver, which supplies differential channels at up to 300 mA from a regulated 5 VDC rail. This differential feedback arrangement helps maintain signal integrity over long cable runs in electrically noisy industrial equipment.
The winding set is designed for a bus voltage of 230 V. Copper resistance is 2.2 Ω at 25 °C, supporting manageable resistive losses, while an inductance of 6.1 mH filters current ripple for smoother torque generation. A normally engaged brake energizes at 24 VDC to release the shaft, preventing back-driving when power is removed. The feedback disk provides 8,000 counts after quadrature decoding, allowing the connected controller to maintain accurate speed and position loops. The motor’s direct coupling arrangement reduces the need for intermediate transmission components in compact machine axes.
