M18 Ball-Bearing MR128ZZ 12x8x3.5 (2) (Item No longer available)
XR309080 This part has been superceded by XR930812
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Set of two high-speed ball-bearings. 12x8x3.5mm.
These ball-bearings are fitted with special polyamid blue covers, and are degreased and lightly oiled with AeroShell Fluid 12 oil for maximum smoothness, long life, highest tolerance and maximum performance.

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