520, 620 or Hex-Hole? A Mini 4WD Bearing Buying Guide
520 and 620 describe size categories; hex-hole describes an interface. Identify the location and exact part before deciding what to replace.
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Tamiya AO-1017 520 Ball Bearings (4 pcs.)(94752)
USD11.50
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Description
This AO-series reorder pack contains four 520 ball bearings intended as a running upgrade for Tamiya kits that ship with plain plastic bushings on their rotating shafts. Tamiya specifically lists the HG N-04/T-04 Carbon Unit (Item 94722), the GP.382 N-03/T-03 Bumperless Unit, and the GP.384 N-03/T-03 Bumperless LED Red kit as compatible swaps. Fitting a sealed ball bearing in place of the stock plastic part reduces rotational friction and wear at the shaft, a common Mini 4WD tuning step.
- Contents: 4x 520 ball bearings
- Fits: HG N-04/T-04 Carbon Unit (Item 94722), GP.382 N-03/T-03 Bumperless Unit, GP.384 N-03/T-03 Bumperless LED Red
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