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.

FAQ

Even at the Same 750W Are All Motor Interfaces Identical?

No. Different Brands, Interfaces may differ across series, even within one brand.