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BXR-LE Model

Product catalog summary

Specifications (Brake Unit): The BXR(LE) models are spring-actuated brakes with specific dimensions and recommended rotor hub mounting positions. The rotor hub can be customized or selected from optional products. Key specifications include an input voltage of 24V DC with a smoothing power supply, a maximum output current of 1.0 A DC at 20°C, and a continuous time rating. The ambient environment should be between -20 to 60°C with 5 to 95% RH.

Specifications (Controller): The controller operates with a 24V DC smoothing power supply and uses PWM control. It features a timing chart for operation and is controlled via an ON/OFF switch on the input side.

Model Specifications: Various models (BXR-015-10LE to BXR-050-10LE) are detailed with static friction torque, coil specifications, maximum rotation speed, and braking energy. Each model has specific dimensions for radial and axial directions, as well as rotor hub machining dimensions.

Precautions for Handling: Care must be taken to avoid damage to the electromagnetic brakes, especially the soft materials. Lead wires should not be pulled excessively, and friction surfaces must remain dry.

Precautions for Use: These brakes are designed for holding use and should not be used for regular braking. The operating temperature range is specified, and power supply voltage should remain within ±10% of the rated voltage. Air gap adjustment is not required for BXR(LE) models.

Precautions for Mounting: The rotor hub should be installed without touching the armature or stator. Screw-locking measures are recommended, and shaft tolerance should be h7 class. The accuracy of brake attachment surfaces is crucial for proper function.

Catalog excerpts

SPRING-ACTUATED BRAKES Speciﬁcations (Brake unit) Size Lead wire Coil (at 20℃ ) Static Overexcitation output Normal excitation output Heat friction resistance torque class Ts [N·m] Voltage Wattage Current Resistance Voltage Wattage Current Resistance ［V］［W］［A］［Ω］［V］［W］［A］［Ω］ Armature Armature Max. Rotating part Allowable Total pull-in release rotation moment of braking braking Mass time time speed energy energy inertia ［kg］ (24 V DC) (7 V DC) [min-1] J [kg·m2] Ebaℓ [J] ET [J] ta [s] tar [s] Dimensions (Brake unit) (K) a Rotor hub machining dimensions * The rotor hub used to couple the shaft and rotor can either be provided by the customer based on the above diagram or selected from the optional products on the right-hand page. Rotor hubs can also be recommended or fabricated to the desired shape. Consult Miki Pulley for details. Rotor hub recommended mounting position: H φAh9 (centering mark depth: 5 mm) ELECTROMAGNETIC CLUTCHES & BRAKES BXR(LE) Models Lead wire length: 400 mm Unit [mm] Axial direction dimensions Rotor hub machining dimensions Radial direction dimensions A Speciﬁcations (Controller) Model 1000 V AC, 50/60 Hz, 1 min. (input/output - between terminal and case) Ambient environment Dielectric strength voltage Input −） Connects the 24 V DC smoothing power supply (-) （ Connects the spring-actuated brake (either pole) Connects the spring-actuated brake (either pole) Lead wire (Blue) *Controlled using ON/OFF on input side. Output Blue - Blue *Case PBT (UL94V-0), Mold: Epoxy (UL94V-0) ： Brake coil Lead wire (Blue) Control circuit 24V DC smoothing power supply Lead wire (Black) Timing Chart (Controller) Structure (Controller) Input ＋） Connects the 24 V DC smoothing power supply (+) （ Lead wire 500 V DC, 100 M Ω with Megger (input/output - between terminal and case) Insulating resistance 1.0 A DC (ambient temp.: 20° 0.8 A DC (ambient temp.: 60° C), C) Time rating 24V DC ± 10% smoothing power supply Initial: 24 V DC (0.2 sec.) Constant: 7 V DC ( ± 10%), PWM control * When the input voltage is 21 V DC, the output volta

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Options Rotor Hub ■ Set screw type (C) SPEED CHANGERS TORQUE LIMITERS ELECTROMAGNETIC-ACTUATED CLUTCHES AND BRAKES LINEAR SHAFT DRIVES CLUTCHES & BRAKES Bore diameter (dimension symbol: d) Size Controller set type Option (Rotor Hub) Blank: No rotor hub C: Set screw type Nominal static friction torque P: Press ﬁt type (3-digit number listed in the speciﬁcations tables) Items Checked for Design Purposes ELECTROMAGNETICACTUATED MICRO CLUTCHES & BRAKES ELECTROMAGNETICACTUATED CLUTCHES & BRAKES ELECTROMAGNETIC CLUTCH & BRAKE UNITS SPRING-ACTUATED BRAKE Electromagnetic brakes use many soft materials....

Open the catalog to page 2

BXR-LE Model

BXR-LE Model

Catalog excerpts

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