B14 flange-mounted electric motors are compact motors with a small threaded-hole flange on the shaft-side face, connected directly to the machine by being bolted. B14 is a practical mounting type that allows the motor to be fixed to the machine body without feet, and is especially preferred in space-constrained applications.

What Is the B14 Mounting Type?

In B14 mounting, the motor is connected directly to a machine, gearbox or pump via the threaded-hole round flange (pad flange) on the front face. The connection is made using the screw holes on the flange. Being smaller and lighter than the B5 flange, it is ideal for compact systems.

Advantages of B14 Motors

B14 flange-mounted motors can be mounted directly to the machine without a separate foundation, take up little space and provide ease of alignment. With these features, they are suitable for pumps, gearboxes and small drive units.

Where Is B14 Used?

B14 motors are used in applications requiring direct flange connection, such as small pumps, gearbox inputs, packaging machines and compact automation units. For higher power and heavy loads, B5 or B35 flange types are preferred.

Choosing the Right Flange Type

In flange type selection; the bolt circle diameter, flange size and motor power are decisive. DRG Motor offers B3, B5, B14 and B35 options suitable for different mounting needs. You can review the mounting dimensions on our technical drawings page and see our industrial electric motors guide for the right choice.

Differences Between B14 and B5 Flanges

Both B14 and B5 are flange mounting types but have different structures. The B14 flange is threaded-hole and smaller; the motor is bolted directly from the flange surface and is ideal for compact applications. The B5 flange is clearance-hole and larger, preferred for applications carrying higher power and load. Correct flange selection is critical for connection strength and alignment.

Frequently Asked Questions

What is the difference between B14 and B5 flanges?

The B14 flange is threaded-hole and smaller, the motor is bolted directly from the flange face. The B5 flange is clearance-hole and larger, suitable for applications carrying higher power and load.

In which powers is a B14 motor available?

B14 mounting is common in small and medium power steps. Contact our technical team for a power and flange combination suitable for your needs.