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Kollmorgen BH-826-A-43-53
Product Introduction:
The BH-826-A-43-53 is a high-torque electromagnetic holding brake from Kollmorgen’s BH-Series, designed for integration with larger-frame servo motors (typically B-606 and above). It provides spring-applied, electrically-released holding torque for vertical-axis and safety-critical applications. The “A-43-53” configuration specifies a 24 VDC coil, standard mounting flange, and high-friction sintered compound disc material.
Detailed content
Technical Specifications:
| Parameter | Value |
|---|---|
| Brake Model | BH-826 |
| Configuration | A-43-53 |
| Rated Voltage | 24 VDC |
| Holding Torque | 6.0 Nm (Nominal) |
| Peak Holding Torque | 8.5 Nm (Short Duration) |
| Release Time | <25 ms |
| Engage Time | <35 ms |
| Power Consumption (Holding) | 0 W (Spring-Applied) |
| Power Consumption (Released) | ~8 W (24 VDC) |
| Duty Cycle | 100% Continuous |
| Operating Temperature | -20°C to +80°C |
| IP Rating | IP54 |
| Weight | ~1.2 kg |
| Compliance | CE, UL, RoHS |
Functional Features:
- Spring-applied / electrically-released fail-safe design
- High holding torque (6.0 Nm) suitable for medium-to-large servo motors
- Sintered metallic friction disc for long life and consistent torque
- Manual release mechanism for zero-power maintenance
- Integrated wear indicator (optional on some configurations)
Structural Features:
- Friction Disc: Sintered bronze-based metallic compound
- Armature: Grain-oriented silicon steel laminations
- Coil: Class H (180°C) insulated copper windings
- Housing: Cast aluminum alloy with anodized finish
- Mounting: 4-bolt flange compatible with B-606 motor rear pattern
Advantages:
- High torque capacity in a compact package
- Zero standby power — spring holds load without electricity
- Fast cycling for high-dynamic pick-and-place or indexing
- Long service life (>10 million cycles) with sintered friction material
Applicable Industries:
- Large robotic arms (shoulder/elbow joints)
- Vertical CNC spindle axes
- Heavy-duty conveyor systems
- Press brakes and stamping machines
- Wind turbine pitch control
Installation Requirements:
- Mount to motor rear flange using 4× M8 socket head cap screws
- Torque to 8.0 Nm
- Wire 24 VDC brake release to drive brake output terminal
- Verify 0.3–0.8 mm air gap at full release
Usage Notes:
- Do not exceed 28 VDC on brake coil
- Replace friction disc when thickness reduces by >50% from original
- Perform brake function test every 6 months in safety-critical applications
