GTO RB205B Gear Motor with Brake for SL2000B, SL2200B and GPX-SL25 Slide Gate Openers
The RB205B is the replacement gear motor with integrated brake used on select GTO PRO and Mighty Mule DC slide gate operators. The motor drives the slide gate chain through the operator drive system, while the brake helps hold the gate position and control movement when the operator stops. This assembly is typically considered when the slide operator motor is weak, failed, noisy, overheating, or no longer holding the gate correctly under normal conditions. Because slide gate motor problems can also be caused by tight rollers, bad chain alignment, low battery voltage, brake drag, or control-board output issues, the full gate and operator should be checked before replacing the motor assembly.
This replacement part is intended for restoring the original mechanical or control function of the listed Linear/GTO operator. Because older GTO PRO and Mighty Mule systems have several similar-looking model generations, match the part number, operator model, and original parts diagram before ordering. The same family name can include different arms, housings, control parts, brackets, or chain lengths depending on production year and single-gate or dual-gate layout.
Features and Specifications
| Manufacturer | Linear / GTO PRO / Mighty Mule |
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| Product Type | Gear motor with brake |
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| Part Number | RB205B |
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| Application | GTO PRO and Mighty Mule DC slide gate operators |
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| Compatible Operator Type | Swing gate opener or slide gate opener service part, depending on model listed |
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| Compatibility Note | Verify the original part number and operator model before ordering, especially when comparing XL, XLS, B, and non-B generations. |
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| Motor Style | DC gear motor with brake |
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| Common Operator Family | SL2000B / SL2200B |
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| Application | Slide gate drive motor service part |
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Compatible With
- GTO PRO SL2000B slide gate opener
- GTO PRO SL2200B slide gate opener
- Mighty Mule SL2000B slide gate opener
- Mighty Mule SL2200B slide gate opener
- GTO GPX-SL25 where RB205B is specified
- Select DC slide gate operator parts diagrams that list RB205B gear motor with brake
- Not for SL1000/SL1000B motor assemblies unless the parts diagram specifically lists RB205B
Also Known As / Related Part Numbers
- RB205B
- GTO RB205B
- Linear RB205B
- Mighty Mule RB205B
- gear motor with brake
- SL2000B gear motor
- SL2200B gear motor
- GPX-SL25 gear motor
- RB205B motor brake assembly
Technician Notes
- This is a gear motor with brake, not a complete slide gate operator.
- A dragging slide gate can destroy a new motor quickly.
- Check batteries, charging voltage, chain tension, rollers, and brake wiring before replacing the motor.
- RB205B should be matched to SL2000B/SL2200B or the specific parts diagram.
Before Ordering Checklist
- Confirm the existing motor assembly or manual lists RB205B.
- Inspect chain condition, sprockets, rollers, and gate track before installation.
- Check battery voltage and charging circuit under load.
- Verify the brake leads and motor wiring are not damaged or corroded.
Professional Advisory
Gate operator repairs should be performed with power disconnected and the gate secured so it cannot move unexpectedly. Do not bypass monitored safety devices, entrapment protection, limit components, or factory control wiring. If the gate is binding, the arm is bent, the slide chain is badly worn, or the operator has water or insect damage, have the full system inspected by a qualified gate technician before replacing only one part.
Product Questions and Answers
What operators use RB205B?
RB205B is commonly listed for GTO/Linear SL2000B, SL2200B, and GPX-SL25 style slide gate operators.
Does the motor include a brake?
Yes. RB205B is described as a gear motor with brake for compatible DC slide gate operators.
Should I replace the motor if the gate is hard to push manually?
No. A hard-to-move gate should be repaired first. A binding gate can overload the operator and damage the replacement motor.
