UP-200 Bearing 830ZZ
This is the OEM‑replacement stainless steel deep‐groove ball bearing specified for the KUPA UP‑200 / UG12 nail‑drill handpieces.
Features
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Smooth high‑speed rotation: Because the bearing is rated and sized for high speed, it helps maintain smooth operation and low vibration in the handpiece.
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Precise fit: With the correct inner/outer dimensions, the bearing fits the spindle/shaft and housing as designed, maintaining alignment and concentricity — critical in high‑RPM nail‑drill handpieces.
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Durability: Using a proper OEM specified bearing helps prevent premature wear of the spindle, collet or front housing due to misaligned or worn bearings.
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Dimensions:
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Inner Diameter (ID / shaft) ≈ 3 mm
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Outer Diameter (OD / housing) ≈ 8 mm
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Width (thickness) ≈ 4 mm
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Material: Stainless steel, shielded (ZZ means metal shields on both sides) — suitable for high‑speed tool use.
Installation Tips
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Ensure your handpiece indeed uses the 830ZZ bearing (verify in your service diagram or existing bearing).
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Check that the seating surface, shaft, housing and surrounding components are in good condition—if the bearing seat or shaft is damaged, simply installing a new bearing may not solve the underlying issue.
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Power off the handpiece and ensure it is fully stopped before disassembly.
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Remove the front housing, collet and any parts required to access the bearing.
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Remove the old bearing carefully (note orientation, shields) and clean out any debris (metal shavings, old lubricant).
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Install the new bearing #830ZZ, ensuring it sits fully flush in the housing and is aligned correctly on the shaft.
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Re‑assemble the handpiece, then run an unloaded test (without bit) at low speed to verify smooth rotation, no unusual noise or vibration before full use.