Tamiya Mini 4WD 13mm Dia. Roller Ball Bearings (2pcs.) II(15475)

A pair of ball bearings sized for 13mm rollers, giving smoother, lower-friction rotation than a plain bushing so the car holds its speed and stability through banked and guide-fence sections. The steel casing is built for durability under repeated race use. The "II" in the name marks this as a later revision of Tamiya's 13mm ball bearing roller part, reissued into the Grade-Up Parts line after the original had cycled out of production, with the bearing spec itself unchanged. Like other roller bearings, it isn't tied to a specific stay or chassis — it simply presses into any roller sized to accept a 13mm ball bearing — so Tamiya lists it as compatible across the full chassis range, from the original Type 3 through current MA, AR, VZ and ME Chassis machines, covering both vintage and current-generation cars equally.

• Outer diameter 13mm, inner diameter 5mm, thickness 3mm
• Steel casing
• 2 bearings per set
• "II" denotes a reissued revision of the original 13mm bearing part