Which Motor Interface Dimensions Must Be Checked?

Key Takeaway:Pay particular attention to shaft diameter, Shaft Length / Keyway, Pilot Diameter & Mounting Hole Spacing, Confirm flange thickness and thread specifications when necessary.

Shaft Diameter & Length

Shaft diameter determines the clamping sleeve or input bushing fit; An overly long shaft may bottom out, An overly short shaft may have insufficient clamping length.

Locating Pilot

The pilot keeps the motor concentric with the gearbox input, A mismatch affects mounting and concentricity.

Mounting Hole Spacing

Hole Spacing, Hole Count & Thread Specifications Must Match, Flange Outline Dimensions Alone Are Insufficient.

Keyways & Plain Shafts

Keyed Shaft, Plain Shaft, D Shaft shapes require matching input connection methods.

How to Apply This Information to Selection?

Do not make a final selection from a single parameter. Review the motor model, Load, Target Output Speed, Torque, Inertia, Check acceleration/deceleration time and mounting interfaces together, Then select the series and model.