Articles on: Learning & FAQ

How to Install a Brake on a Motor?

In order to realize functions such as emergency braking, power-off retention, and safety protection of stepper motors, a brake is usually installed on the motor. STEPPERONLINE provides customers with two optional brakes: permanent magnet brakes and non-excitation brakes.

Because permanent magnet brakes are complicated to install, they are not sold separately. Therefore, this article introduces the installation method using non-excited brakes as an example.

Specifications of non-excited brakes

ModelVoltage (V)Power(W)Static Friction Torque (N·m)Max Speed(RPM)Heat-Resistance ClassMotor size
SWB-003241.40.066000FNEMA 11 & 14
SWB-004246.10.326000FNEMA 14
SWB-012450.255000FNEMA 17
SWB-022411.52.05000FNEMA 23 & 24
SWB-0324134.05000FNEMA 34

All brakes sold by our company are power-off brakes. That is, when the power is off, the brake is applied and the motor shaft cannot rotate freely and maintain its current position.

Installation requirements for non-excited brakes

As shown in the picture above, the following requirements need to be met when installing the brake:

● The motor must have a rear shaft, and the diameter must comply with the installation dimensions and be milled flat (D-CUT)

● The rear end cover of the motor has reserved holes for brake installation.

Installation process of non-excitation brake

3.1. Prepare installation tools

3.2. Remove the brake rotor

3.3. Install the brake rotor on the rear shaft of the motor

3.4. Use tools to lock the rotor

3.5. Align the center hole of the brake disc with the rotor and insert it, then rotate the motor shaft to align the screw with the mounting hole

3.6. Use tools to tighten the screws to complete the installation

Updated on: 26/06/2024

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