Product News: Mechanical Power Transmission

BXR-LE Brakes offer maximum speed of 6000 RPM.

Press Release Summary:

BXR-LE Brakes offer maximum speed of 6000 RPM.

May 02, 2017 -

Suitable for robotic arm joints, CNC machine centers, direct drive servo motors and locking sensor alignment applications, BXR-LE Brakes deliver static friction torque ranging from 0.06 Nm - 3.20 Nm. Operated in -20°C - 60°C temperature range, units feature lightweight and slim design. Equipped with voltage controller, brake’s power consumption is reduced to 7 VDC after split second for 24VDC brake actuation.

Miki Pulley US - Plymouth, MN

Original Press Release

Expanded Size Selection for BX Series Brakes from Miki Pulley for Servo Motor Applications Which Use One-Third Power With Less Heat Than Larger Brake Models

Press release date: Apr 27, 2017

Electromagnetic Miki Pulley BX series brakes are a power-off, engaged type brake. When the stator is energized, the brake is disengaged allowing free rotation. When no current is applied, compression springs halt the brake rotor thereby stopping the input shaft rotation. This is an ideal feature to prevent power failure events.

Of the BX series, the BXR-LE has expanded to 3 additional sizes. (6 total size configurations to choose from.) These brakes boast advantages including a slim design and high holding torque in a compact package. They provide quiet operation with long service life. This brake was designed for smaller machine and robotic applications, where cantilevered loads can negatively impact operation. The brake’s unique compact and lightweight design optimizes machine design efficiency. With accompanying voltage controller, power consumption is stepped down to 7VDC after a split second of 24VDC for brake actuation.

When compared to the other BX brakes in the Miki lineup, this revolutionary BXR-LE design provides just one-third power consumption and heat generation in one-half the overall size thickness.

Specifications are:

  • Maximum RPM: 6000
  • Static friction torque range: 0.06 Nm – 3.20 Nm (0.044 ft-lbs – 2.36 ft-lbs)
  • Ambient operating temperature: -20°C -- 60°C (-4°F -- 140°F)

Applications for the BXR-LE brakes include:

  • Robotic arm joints to stop movement during a catastrophic power failure
  • Z-axis ball screw brake on CNC machine centers
  • Internal brake for direct drive servo motors
  • Pan/tilt brake for security cameras
  • Brake for locking sensor alignment
  • Z-axis brake

For more information

Jon Davidson

The Miki Pulley US Sales Office

13200 Sixth Avenue North,

Plymouth, Minnesota 55441-5509.

Fax: 763-546-8260