 
  
        KP-55 Spacer 520K09
The #520K09 spacer is an OEM-grade precision metal component designed for use in the KP-55 and KP-60 handpieces from KUPA. It provides the correct spacing and structural support between internal assemblies, helping to maintain alignment and proper clearance under high-speed rotation. When a spacer wears, becomes undersized, or is lost, tool performance can suffer — this replacement ensures your handpiece continues to operate smoothly.
Features
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Dimensions: - 
Outside Diameter (OD): approx. 11.95 mm 
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Inside Diameter (ID): approx. 8.87 mm 
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Length (thickness): approx. 15.48 mm 
 
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Material: Aluminum, high-speed rated. 
Installation Tips
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Confirm the spacer currently in your handpiece matches the required spec (ID ~8.87 mm, OD ~11.95 mm, length ~15.48 mm). 
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Inspect the surrounding internal housing or components (bearing surfaces, housing, spindle) for wear or damage—if adjacent parts are worn, just replacing the spacer may only partially restore performance. 
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Disconnect the handpiece from power and ensure it’s stopped before disassembly. 
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Remove the front housing or relevant internal assembly to access the spacer location. 
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Remove the old spacer carefully, clean the mating surfaces of debris or old lubricant. 
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Insert the new 520K09 spacer, ensuring it seats fully and squarely and that nearby parts (bearings, shaft, housing) align properly. 
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Re-assemble the handpiece and perform a no-load test run (with no bit installed) to check for smooth rotation, minimal vibration or noise before full use. 
