Electric motors are manufactured in different mounting configurations to suit a wide range of mechanical layouts. IEC 60034-7 defines the standardized mounting codes such as B3, B5, B14, V1, and others. Choosing the correct mounting type ensures proper alignment, ease of installation, and reliability in operation.

1. Why Mounting Type Matters

• Mechanical compatibility: Ensures motor fits directly onto the machine.
• Alignment accuracy: Reduces vibration and bearing wear.
• Serviceability: Easier replacement or maintenance.
• Application-specific layouts: Vertical pumps require V-mounts; machinery uses foot or flange mounts.

2. Common IEC Mounting Types

• B3 – Foot Mounting: Motor sits on a base with feet. Most common industrial mounting. Used in pumps, blowers, conveyors.
• B5 – Full-Flange Mounting: Large circular flange on the front. Used where motors couple directly to machinery or gearboxes.
• B14 – Face Mounting: Smaller flange with threaded holes. Common in compact machinery and OEM equipment.
• B35 – Foot + Flange Mounting: Combination of B3 and B5. Maximum mounting flexibility.
• B34 – Foot + Face Mounting: Combination of B3 and B14.
• V1 – Vertical, Shaft Down: Used in vertical pumps and agitators. Motor is mounted vertically with shaft facing downward.
• V3 – Vertical, Shaft Up: Motor shaft faces upward. Used in mixers and special-purpose applications.

3. How to Choose the Right Mounting

• Application Type: Horizontal machines → B3/B5; Vertical pumps → V1.
• Space Constraints: Compact OEM machines → B14/B34.
• Vibration Requirements: Vertical mounting requires stronger thrust bearings.
• Ease of Replacement: If unsure, B35/B34 provide maximum flexibility.
• Coupling Arrangement: Flange motors are preferred for direct coupling.

4. CG Power Motor Mounting Options

• Standard mounts: B3, B5, B14
• Combination mounts: B35, B34
• Vertical mounts: V1 and V3
• Custom mounting available on request
• Available for both flameproof and non-flameproof designs

Final Thoughts

Correct mounting selection ensures proper fit, alignment, and long-term performance of electric motors. CG Power offers a complete range of mounting configurations to suit every application, and Bombay Engineering Syndicate provides expert guidance to ensure seamless integration with your machinery.

Contact us today to select the right mounting type for your motor.

By: Manish Chandrani; +919825014977