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OEM KUPA KP-55 Drive Shaft #KP-5507 – steel high-speed shaft (OD ≈ 9.95 mm, length ≈ 35.58 mm). Direct replacement for KP-55 handpieces to restore smooth, reliable performance and reduce vibration.

KP-55A Drive Shaft KP-5507

by Ovation Spas
$15.00 - $15.00
$15.00
$15.00 - $15.00
$15.00

The KUPA Drive Shaft #KP-5507 is an OEM-specified replacement component designed for the KUPA KP-55A (and compatible KP-series) handpieces. This precision steel shaft forms a key part of the internal rotor/spindle assembly, transmitting motion and supporting the high-speed rotation of your nail drill handpiece. When the drive shaft becomes worn, bent, or out of tolerance, issues such as bit wobble, excessive vibration, or reduced performance can occur. Replacing this part helps restore smooth, reliable operation.

Features

  • Dimensions: Outside Diameter: 9.95 mm (≈ 0.39″); Length: 35.58 mm (≈ 1.40″). 

  • Material: Steel, high-speed rated.

Installation Tips

  • Confirm your handpiece uses part #KP-5507 (check existing shaft diameter/length if uncertain).

  • If your unit has been modified or is a different revision, verify that dimensions match (OD ~9.95 mm, length ~35.58 mm).

  • Turn off and unplug the handpiece before disassembly.

  • Remove the front housing, collet/chuck, and other parts as necessary to gain access to the shaft.

  • Remove the old shaft, clean out any metal shavings or debris, inspect bearings and housing for wear.

  • Install the new #KP-5507 drive shaft, ensure proper orientation and seating, re-assemble the front section.

  • Run the handpiece unloaded (no drill bit) at low speed to verify smooth rotation and no unusual vibration before full use.