Foot Cum Flange Mounted Motor
Precise alignment for direct-drive applications.
Foot Cum Flange Mounted Motor
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Warranty
1 Year Standard
Service
Covered by Warranty
Certified
ISO 9001:2015
Experience
24 Years
Product Overview
The Sun Star foot cum flange motor features a standard IEC foot base combined with a large B5 flange on the drive end. This allows the motor to be bolted to a foundation through the foot mounting while simultaneously providing a flange interface for direct coupling to gearboxes, pumps, or other driven equipment.
Key Features
Technical Specifications
| Power Range | 0.5 HP to 20 HP |
| Mounting Standard | IEC / NEMA Flange |
| Flange Type | B5 (Large Flange) |
| Shaft | Standard Keyway |
| Speed | 2880 / 1440 / 960 / 750 RPM |
| Housing | Cast Iron / Aluminum |
Common Applications
Industries Served
Process Industry
Pump drives, agitator motors, and gearbox-coupled applications in chemical, pharmaceutical, and process plants.
Material Handling
Geared conveyor drives and bucket elevator motors requiring flange-coupled gearbox connections.
Key Benefits
- Dual mounting provides both structural stability (foot) and precision alignment (flange) in a single motor
- B5 spigot ensures concentricity within 0.03mm for direct-coupled applications
- Eliminates the need for separate coupling guards and flexible couplings — reducing cost and maintenance
Why Choose Our Motors
- Both foot and flange mounting in a single motor — maximum installation flexibility
- B5 spigot machined to IEC tolerance for guaranteed alignment accuracy
Manufacturing & Quality
Manufacturing Process
The B35 motor uses the same core manufacturing process as our standard motors, with additional machining operations for the flange and spigot. The flange bolt circle and spigot diameter are CNC-machined to IEC tolerances.
Quality Standards
- Spigot concentricity verified to ≤ 0.03mm TIR
- Flange bolt circle accuracy verified to IEC specifications
- Standard motor testing (IR, HV, no-load, vibration)
Certifications
Selection Guide
The B35 (foot cum flange) motor is the optimal choice when you need the stability of foot mounting combined with the precision alignment of flange coupling. Common applications include gearbox drives where the motor must be both floor-mounted and directly coupled.
Comparison With Similar Motors
| Feature | Sun Star Motors™ | Typical Market Motor |
|---|---|---|
| Mounting | B35 (foot + flange) — dual mount | B3 (foot only) or B5 (flange only) |
| Spigot Accuracy | CNC-machined to IEC tolerance (≤ 0.03mm) | Conventional machining |
| Flexibility | Foot or flange or both | Single mounting type |
Installation Guidelines
- Secure both foot mounting and flange mounting during installation — do not rely on only one mounting method
- For gearbox applications, ensure the gearbox input flange matches the motor's B5 flange dimensions
Maintenance Tips
- Check flange bolt torque quarterly — vibration can gradually loosen flange connections
- Inspect the spigot fit annually — wear in the spigot can cause alignment drift
- Follow standard motor maintenance schedule for bearings, insulation, and cooling
Troubleshooting Guide
| Issue | Possible Cause | Solution |
|---|---|---|
| Vibration at the motor-gearbox interface | Worn spigot fit, loose flange bolts, or coupling misalignment | Check spigot for wear. Retighten all flange bolts to specification. Verify coupling alignment with dial indicator. |
| Flange bolt holes do not align with gearbox | Gearbox flange is not IEC standard, or wrong motor frame size selected | Verify that both motor and gearbox conform to the same IEC standard. Check frame size compatibility. |
Warranty Information
All Sun Star Motors™ foot cum flange mounted motors carry a 12-month warranty from the date of dispatch, covering manufacturing defects under normal operating conditions.
Quality Assurance • Sun Star Motors™