B-202-B-31 Kollmorgen
Wake Industrial LLC is not an authorized distributor of this product.
The Kollmorgen B-202-B-31 is a motor from the Goldline B and BH Motors series with a continuous stall torque of 2.44 Newton-meters and a peak stall torque of 7.38 Newton-meters. It has a shaft diameter of 14 mm, motor length of 236.2 mm, and weighs 4.1 kg. The motor features a standard IP65 rating, 68 mH inductance, and a back EMF constant of 49 Vrms per kRPM.
Internal Product Review
The B-202-B-31 is a Kollmorgen Goldline B motor with 2.44 N-m continuous stall torque and 3 Arms continuous stall current. IP65 protection and 7.38 N-m peak stall torque support dependable use in demanding motion systems. A strong choice for applications requiring stable torque output and durable motor construction.
To contact sales for pricing and lead time:
Payment Methods
Shipping Methods
Our Credentials
Product Description:
The B-202-B-31 servo motor is produced by Kollmorgen within the Kollmorgen Goldline B and BH Motors series. As a brushless synchronous motor, it converts drive current into controlled torque and speed for positioning axes, pick-and-place heads, and packaging machinery. The 92 mm frame and sealed housing allow the unit to be mounted directly to gearboxes or belt drives without secondary enclosures. Its four-pole rotor supports smooth torque at moderate speeds in industrial automation cells.
The motor’s electrical constants establish its continuous operating range. A back electromotive force constant of 49 Vrms/krpm means the drive must supply approximately 49 volts for every 1,000 revolutions per minute to overcome the generated voltage. Under thermal equilibrium, the windings can carry a continuous phase current of 3 Arms. When combined with the torque constant of 0.81 N·m/Arms, this current produces a continuous stall torque of 2.44 N·m. Winding impedance includes 68 mH of inductance and 6.98 Ω of DC resistance, which affect current rise time and limit low-speed ripple. The assembly has a mass of 4.1 kg, allowing actuators to accelerate without requiring an excessively heavy support structure.
For short operating bursts, the amplifier may supply a peak phase current of 9.6 Arms, allowing the motor to generate up to 7.38 N·m of peak stall torque during rapid indexing or when overcoming static friction. Dynamic response is supported by a rotor inertia of 0.0000996 kg·m², reducing the servo loop gain needed for precise position control. The housing has an IP65 rating, protecting the motor against dust ingress and low-pressure water jets near washdown areas. A 14 mm shaft diameter with a 30 mm projection accommodates standard couplings. The 236.2 mm overall body length supports installation where axial mounting space is limited. The sealed housing also helps protect internal components from contaminants encountered in industrial production areas.
