Overview
The Leeson Hydro-Mec HMQ518-07-H-IEC63 is a single-stage aluminum gear reducer engineered for efficient speed reduction and torque multiplication in industrial automation, material handling, and machinery drive systems. This compact unit combines lightweight aluminum construction with precision helical gearing, making it ideal for applications requiring reliability, compactness, and smooth power transmission. The IEC63 motor flange mounting provides direct coupling to standard IEC-frame motors.
Key Features
- Aluminum die-cast housing for lightweight, corrosion-resistant design
- 7:1 single-reduction gear ratio for moderate speed reduction and increased torque
- IEC63 motor flange mount (direct motor coupling without adapters)
- Helical gearing for smooth, quiet operation and improved efficiency
- 18mm input shaft compatible with standard motor couplings
- Right-hand and left-hand shaft configurations available
Technical Specifications
- Series: HMQ518 Bravo (Hydro-Mec)
- Motor Flange: IEC63 B5 (direct mount)
- Input Shaft Diameter: 18mm
- Gear Ratio: 7:1
- Housing Material: Aluminum alloy
- Gearing Type: Helical
- Lubrication: Oil bath (sealed housing)
- Operating Temperature Range: –10°C to +40°C (standard industrial)
- Mounting Orientation: Foot or flange mount
Typical Applications
- Conveyor systems and material handling equipment
- Automation and industrial machinery drive systems
- Pump and fan drive applications
- Packaging and labeling equipment
- Light to medium-duty power transmission
Compatibility & Replacements
Compatible With
- IEC63 B5 (foot-flange) motor mount
- Standard 18mm coupling shafts
- Three-phase and single-phase motors in the 0.25–1.0 HP range
- Direct motor coupling without intermediate adapters
Replaces / Drop-In Replacement For
- Leeson Hydro-Mec HMQ518-07-H-56-12 (alternate input flange configuration)
- Other Leeson HMQ518 7:1 ratio units with IEC63 mounting
- Verify compatibility with your system integrator before ordering.
Works With
- NEMA and IEC frame motors (56 frame and above)
- Standard motor couplings and mechanical drive systems
- Enclosed and open-frame motor assemblies
- Variable frequency drive (VFD) motor control systems
