Brake Motor With Gear
The ultimate solution for high-torque, slow-speed precision.
Brake Motor With Gear
WhatsApp for 15-min engineer call
Warranty
1 Year Standard
Service
Covered by Warranty
Certified
ISO 9001:2015
Experience
24 Years
Product Overview
The Sun Star brake motor with gear is an integrated drive unit consisting of three key assemblies: a three-phase AC induction motor, an electromagnetic fail-safe brake, and a gear reducer — all assembled and tested as a single unit. The gear reducer is available in worm gear (for high reduction ratios and self-locking capability) or helical gear (for higher efficiency) configurations. Gear ratios from 5:1 to 100:1 provide output speeds ranging from 10 RPM to 300 RPM, with correspondingly high output torque.
Key Features
Technical Specifications
| Power Range | 0.5 HP to 20 HP |
| Gear Ratio | 5:1 to 100:1 |
| Output Speed | 10 RPM to 300 RPM |
| Brake Torque | Aligned with motor capacity |
| Mounting | Universal Mounting |
| Lubrication | Synthetic Oil / Grease |
Common Applications
Industries Served
Material Handling
Low-speed conveyors, bucket elevators, and scissor lifts requiring controlled speed and instant stopping.
Building Automation
Automatic gates, rolling shutters, parking barriers, and industrial doors requiring slow speed with precise positioning.
Manufacturing Automation
Rotary indexing tables, turntables, and positioning stages requiring accurate angular positioning with holding.
Key Benefits
- Single integrated unit replaces separate motor + coupling + gearbox + brake — reducing installation time and alignment issues
- Output torque is multiplied by the gear ratio — a 2 HP motor with 50:1 ratio delivers the torque equivalent of a much larger direct-drive motor
- Worm gear option provides self-locking capability — the output shaft cannot be back-driven even without the brake engaged
Why Choose Our Motors
- Factory-integrated and tested as a complete unit — no field assembly alignment issues
- Brake and gearbox matched to motor capacity at the factory — no risk of undersized components
- Available with worm gear (self-locking) or helical gear (high efficiency) options
Manufacturing & Quality
Manufacturing Process
The brake motor with gear is assembled by integrating a tested brake motor with a precision gear reducer. The motor-to-gearbox coupling is aligned on our assembly jig to ensure concentricity within 0.03mm.
Quality Standards
- Motor-gearbox concentricity verified to ≤ 0.03mm
- Output speed and torque verified under rated load
- Brake performance tested on complete assembly
- Gear noise level measured and verified against specification
- Oil seal integrity verified by pressure test
Certifications
Selection Guide
For automatic gates and rolling shutters, a 0.5–1 HP motor with 30:1 to 50:1 worm gear ratio provides adequate torque with self-locking capability. For material handling conveyors, helical gears offer 15–20% higher efficiency than worm gears at the same ratio. When specifying gear ratio, calculate the required output speed first: Output RPM = Motor RPM ÷ Gear Ratio.
Recommended For
Comparison With Similar Motors
| Feature | Sun Star Motors™ | Typical Market Motor |
|---|---|---|
| Integration | Factory-assembled single unit | Separate motor + gearbox requiring field assembly |
| Alignment | Precision-aligned to ≤ 0.03mm at factory | Dependent on field installation quality |
| Brake Position | High-speed side (motor) for fastest response | Often on output (low-speed) side |
| Testing | Complete unit load-tested before dispatch | Motor and gearbox tested separately |
| Warranty | Single warranty covers entire unit | Separate warranties for motor and gearbox |
Installation Guidelines
- Mount the unit on a flat, rigid surface using all provided mounting holes — the gearbox housing is the primary structural member
- For shaft-mounted installations, use a torque arm to prevent the gearbox housing from rotating
- Fill the gearbox with the specified lubricant to the correct level before first operation — refer to the oil level sight glass
Maintenance Tips
- Check gearbox oil level monthly — top up with the specified synthetic oil if below the sight glass minimum mark
- Change gearbox oil every 10,000 operating hours or annually, whichever comes first
- Inspect brake friction linings every 6 months per the standalone brake motor maintenance schedule
Troubleshooting Guide
| Issue | Possible Cause | Solution |
|---|---|---|
| Output shaft does not rotate when motor is energised | Brake not releasing, gearbox jammed, or coupling failure between motor and gearbox | Use manual brake release to check if motor shaft rotates. If motor runs freely with brake released, check brake coil circuit. If motor shaft does not rotate, check gearbox for seized gears. |
| Excessive noise from gearbox | Low oil level, worn gears, or foreign object in gear housing | Check oil level and top up if low. If noise persists with correct oil level, drain and inspect oil for metal particles. If metal particles present, gears need replacement. |
Warranty Information
All Sun Star Motors™ brake motors with gearbox carry a 12-month warranty from the date of dispatch, covering manufacturing defects in motor, brake assembly, and gear reducer as a complete integrated unit.
Quality Assurance • Sun Star Motors™