Silencer® BN Series Brushless DC Motors

The Silencer® BN series of brushless motors offers diameters from 1.2 inches to 4.1 inches and lengths from 1.3 inches to 5.5 inches. It offers continuous torques from 2.4 to 519 oz-in and speeds up to 20,000 rpm. Built for rugged applications and environments, the Silencer series motors feature bonded rare earth magnets and aluminum housings. Options include electronic drivers, encoders and gearheads, as well as Hall effect, resolver and sensorless feedback. Our very quiet, efficient, brushless design is well suited for applications where low noise and reliable, long life operation are particularly important.

Model Dia-
meter (in)
Available Lengths Voltage Ratings (VDC) Range-Rated Torque (oz-in) Range-Rated Speed (rpm) Range-Rated Power (watts)
BN12 1.20 1.3 - 2.8 in
33.02 - 71.12 mm
12/24/36 1.8 - 6.2 0 - 13753 17 - 44.7
BN17 1.70 1.5 - 2.5 in
38.1 - 63.5 mm
12/24/36 8.2 - 17.81 0 - 13498 55 - 97
BN23 2.25 1.41 - 2.91 in
35.8 - 73.9 mm
24/36/48 12.1 - 51.9 0 - 9190 82 - 222
BN28 2.80 2.1 - 4.4 in
53.3 - 111.8 mm
24/48/72 31 - 86 0 - 9240 210 - 306
BN34 3.40 1.40 - 2.90 in
35.6 - 73.7 mm
24/50/100 60 - 214 0 - 8130 334 - 690
BN42 4.15 2.3 - 5.3 in
58.4 - 134.6 mm
24/50/100 102 - 451 0 - 6140 456 - 874