Ultra-Thin Servo Motor Brake
Product Details

Technical Parameters
| Frame Size | Static Torque (N·m) | Over-Excitation Output (20℃) | Steady Excitation Output (20℃) | Heat Class | Max Speed (r/min) | Rotational Inertia J [kg·m²] | Allowable Single Braking Energy E₈ₐₛ [J] | Total Braking Energy E_T [J] | Pull-in Time tₐ [ms] | Release Time tₐᵣ [ms] | Mass [kg] | ||||||
| Voltage [V] | Power [W] | Current [A] | Resistance [Ω] | Voltage [V] | Power [W] | Current [A] | Resistance [Ω] | ||||||||||
| 10LE | 0.02 | 24 | 16 | 0.67 | 36 | 7 | 1.36 | 0.19 | 36 | F | 6000 | 4.6×10⁻⁹ | 5 | 1000 | 50 | 20 | 0.02 |
| 15LE | 0.06 | 24 | 16.5 | 0.69 | 35 | 7 | 1.4 | 0.2 | 35 | F | 6000 | 5×10⁻⁸ | 5 | 1000 | 20 | 20 | 0.03 |
| 20LE | 0.1 | 24 | 16.5 | 0.69 | 35 | 7 | 1.4 | 0.2 | 35 | F | 6000 | 8×10⁻⁸ | 15 | 3000 | 35 | 20 | 0.06 |
| 25LE | 0.32 | 24 | 16.5 | 0.69 | 35 | 7 | 1.4 | 0.2 | 35 | F | 6000 | 3×10⁻⁷ | 15 | 3000 | 35 | 20 | 0.08 |
| 35LE | 0.62 | 24 | 16.5 | 0.69 | 35 | 7 | 1.4 | 0.2 | 35 | F | 6000 | 7×10⁻⁷ | 90 | 1.8×10⁴ | 50 | 20 | 0.12 |
| 40LE | 1.3 | 24 | 16.5 | 0.69 | 35 | 7 | 1.4 | 0.2 | 35 | F | 6000 | 2×10⁻⁶ | 90 | 1.8×10⁴ | 60 | 20 | 0.16 |
| 45LE | 2 | 24 | 24 | 1 | 24 | 7 | 2.04 | 0.29 | 24 | F | 6000 | 3×10⁻⁶ | 150 | 3×10⁴ | 60 | 25 | 0.23 |
| 50LE | 3.2 | 24 | 24 | 1 | 24 | 7 | 2.04 | 0.29 | 24 | F | 6000 | 4×10⁻⁶ | 200 | 4×10⁴ | 60 | 25 | 0.4 |
| 100LE | 5 | 24 | 20 | 0.83 | 28.8 | 7 | 1.7 | 0.24 | 28.8 | F | 5000 | 2×10⁻⁵ | 500 | 1×10⁵ | 80 | 40 | 0.5 |
| 110LE | 5.5 | 24 | 24.5 | 1.02 | 23.5 | 7 | 2.08 | 0.3 | 23.5 | F | 5000 | 3.45×10⁻⁶ | 500 | 1×10⁵ | 100 | 40 | 0.55 |
| 130LE | 6.6 | 24 | 21.5 | 0.9 | 26.8 | 7 | 1.83 | 0.26 | 26.8 | F | 5000 | 3.5×10⁻⁵ | 800 | 1.6×10⁵ | 110 | 50 | 1.1 |
| 150LE | 10 | 24 | 18 | 0.75 | 32 | 7 | 1.53 | 0.2 | 32 | F | 5000 | 3.9×10⁻⁵ | 1000 | 2×10⁵ | 110 | 50 | 1.5 |
| 180LE | 25 | 24 | 31 | 1.29 | 18.6 | 7 | 2.6 | 0.38 | 18.6 | F | 5000 | 3.1×10⁻⁵ | 1500 | 3×10⁵ | 110 | 50 | 2.7 |
| 220LE | 40 | 24 | 32 | 1.33 | 18 | 7 | 2.72 | 0.39 | 18 | F | 4000 | 8.6×10⁻⁴ | 2000 | 4×10⁵ | 300 | 100 | 6 |
| Frame Size | Radial Dimensions | Axial Dimensions | Rotor Hub Machining Size | |||||||||||||
| A | B | C | D | dmax | F | S | V | H | K | N | a | L | D2 | F2 | dmax | |
| 10LE | 15 | 2.4 | 6 | 2.5 | 4 | 14-14.2 | 17 | 12 | 0.1 | ≥2.5 | 5.1 | 4 | 2.5 | |||
| 15LE | 26 | 22 | 7 | 12 | 4 | 8 | 4.3 | 2.3 | 9.6-9.8 | 14 | 7 | 0.1 | ≥4 | 10 | 8 | 4 |
| 20LE | 32 | 28 | 9 | 16 | 8 | 12 | 5 | 2.3 | 9.6-9.8 | 14 | 7 | 0.1 | ≥4 | 14 | 12 | 7 |
| 25LE | 39 | 33 | 9 | 18 | 8 | 12 | 5.5 | 3 | 9.6-9.8 | 14 | 7 | 0.1 | ≥4 | 14 | 12 | 7 |
| 35LE | 48 | 42 | 16 | 28 | 14 | 19 | 5.5 | 3 | 9.6-9.8 | 14 | 7 | 0.1 | ≥4 | 23 | 19 | 14 |
| 40LE | 56 | 50 | 16 | 28 | 14 | 19 | 6.5 | 3.4 | 10-10.2 | 14.5 | 7.4 | 0.1 | ≥4 | 23 | 19 | 14 |
| 45LE | 66 | 60 | 24 | 37 | 20 | 25 | 6.5 | 3.4 | 11.6-11.8 | 16 | 8 | 0.1 | ≥4 | 31 | 24 | 20 |
| 50LE | 71 | 65 | 22 | 37 | 20 | 25 | 8 | 4.4 | 14.1-14.3 | 19 | 10.5 | 0.1 | ≥4.5 | 31 | 24 | 20 |
| 100LE | 83.5 | 76 | 47 | 47 | 28 | 35 | 9 | 4.5 | 17-17.4 | 25 | 14.7 | 0.1 | ≥5 | 42 | 40 | 28 |
| 110LE | 93.5 | 85 | 50.5 | 60 | 38 | 45 | 9.5 | 4.5 | 13.55-13.75 | 20.5 | 10.5 | 0.1 | ≥5 | 55 | 45 | 38 |
| 130LE | 123.5 | 115 | 62 | 83 | 38 | 45 | 9.5 | 4.5 | 18-18.2 | 24.3 | 13.7 | 0.15 | ≥5 | 55 | 45 | 38 |
| 150LE | 137.5 | 130 | 65 | 92 | 42 | 50 | 12 | 4.5 | 17.6-17.8 | 25 | 12.6 | 0.15 | ≥5 | 60 | 50 | 42 |
| 180LE | 167.5 | 158 | 80 | 112 | 52 | 60 | 12 | 6.5 | 16.5-16.7 | 25 | 13.2 | 0.15 | ≥5 | 74 | 60 | 52 |
| 220LE | 185 | 175 | 100 | 100 | 52 | 60 | 12.5 | 6.5 | 32.8-33.3 | 48 | 31.5 | 0.2 | ≥5 | 74 | 60 | 52 |
Ultra-Thin Servo Motor Brake
As Thin as 12mm – Redefining the Boundaries of Compact Braking
When every millimeter of axial space saved unlocks new design possibilities, and when humanoid robot joint modules demand the ultimate in integration – our Ultra-Thin Servo Motor Brake, with a profile down to just 12mm, opens up new horizons for precision drives and automated equipment.
Covering the full 10LE–220LE frame size range, with static torque spanning 0.02 to 40 N·m and support for custom specifications, this is not just another brake – it is a systematic answer to the four key challenges of compactness, efficiency, cleanliness, and quiet operation.
Four Core Advantages
1. Ultra-Slim Profile – Designed for Space-Constrained Applications
With a minimum axial thickness of only 12mm, this brake saves significant installation space compared to conventional designs. Whether in compact automation modules or the narrow cavities of humanoid robot joints and rotary actuators, it integrates effortlessly.
All models feature standardized radial and axial dimensions that precisely match standard servo motor flanges, enabling seamless assembly without additional modifications.
2. Full Torque Coverage – 0.02 to 40 N·m, Customizable on Demand
From micro servos to heavy-duty equipment, we have you covered:
| Series | Torque Range | Typical Applications |
|---|---|---|
| 10LE–40LE | 0.02–1.3 N·m | Micro servos, collaborative robot small joints, vision inspection equipment |
| 50LE–130LE | 3.2–6.6 N·m | Standard servo motors, CNC modules, AGV drive units |
| 150LE–220LE | 10–40 N·m | Heavy-duty automation, machine tool spindles, large robot joints |
Torque, mounting dimensions, and voltage can all be customized to meet diverse project requirements.
3. Over-Excitation Energy-Saving Magnetic Circuit – Fast Engagement, Low Steady-State Power
Our dual-coil over-excitation control applies a high voltage during engagement for rapid braking, then switches to a low voltage for steady-state holding, dramatically reducing long-term power consumption.
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Class F coil insulation ensures stable performance even at elevated temperatures
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Withstands high speeds up to 6000 r/min with reliable braking response
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Low heat generation, ideal for continuous operation
4. Proprietary Friction Lining – Solving Industry Points at the Source
Dust shedding and brake squeal have long plagued high-precision equipment users. Our in-house formulated friction material fundamentally eliminates dust generation and abnormal noise. With a maximum single braking energy of 2000 J and extended wear life, it is built for long-term, high-accuracy continuous operation.
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Axial thickness | From 12 mm (minimum) |
| Torque range | 0.02–40 N·m |
| Coil voltage | Over‑excitation 24 V / Steady‑state 7 V |
| Max. speed | 6000 r/min (10LE–150LE); 4000 r/min (220LE) |
| Max. single braking energy | 5–2000 J |
| Total braking energy capacity | Up to 4×10⁴ J |
| Coil insulation class | Class F |
| Engagement time | 50–300 ms |
| Release time | 20–100 ms |
Typical Applications
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Humanoid robots – joint modules, rotary actuators
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Collaborative robots – lightweight joints, electric grippers
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Precision drives – CNC modules, servo spindles
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Automation equipment – AGV drive units, vision inspection systems
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Industrial robots – heavy-duty joints, high‑torque actuators
Why Choose Our Ultra-Thin Servo Motor Brake?
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Thin – down to 12 mm, freeing up valuable design space
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Comprehensive – 0.02–40 N·m full torque coverage plus custom options
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Efficient – over‑excitation control for low steady‑state energy consumption
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Clean – proprietary friction lining eliminates dust and noise
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Reliable – stable high‑speed braking up to 6000 r/min with precise timing
Available in 10LE–220LE frame sizes; torque, dimensions, and voltage can be tailored to your needs. Contact us for more information.
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