PSH - Shaft Key for ND.1 Pool Pump (Pack of 10) - 4100150R

PSH – Shaft Key for ND.1 Pool Pump (Pack of 10)

This is a genuine PSH shaft key (woodruff/drive key) for the PSH ND.1 pool pump, corresponding to position 54 in the official exploded-view diagram. The shaft key is the small but critical component that locks the impeller or pulley to the motor shaft, preventing rotational slip and ensuring full torque transfer during pump operation. Supplied in a convenient pack of 10 pieces.

Compatibility

Designed exclusively for the PSH ND.1 pool pump (Nova Delfino series) manufactured up to and including 2018. This part is not compatible with the revised ND.2 range or any other PSH pump family. Always cross-reference the exploded-view diagram (ref. 54) for your specific pump serial number before ordering.

Why Genuine Matters

As an OEM PSH spare part, this shaft key is precision-manufactured to the exact tolerances required by the ND.1 pump shaft and keyway. An undersized or off-spec key can wear rapidly under load, cause vibration, and ultimately damage the impeller hub or motor shaft — making genuine quality essential for long-term reliability.

Installation

Replacement of the shaft key typically requires partial disassembly of the pump motor end, including removal of the impeller. The task is straightforward for qualified pool technicians following the PSH ND.1 service manual and exploded-view diagram. Having a pack of 10 on hand ensures you are prepared for multiple services or future preventive maintenance.