Wheel Hub Mold
Wheel Hub Mold
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are spacers between bearings on your roller blades necessary?
hey, can anyone tell my whether or why you need spacers between your bearings on your roller blades?
I'm switching from mini-bearings to regular, and my old spacers don't fit. My axles fit, and I can't see why the spacers make any difference since the bearings fit on a molding in the hub and can't fall into the wheel anyway.
Absolutely needed - the skates will be really slow if you tighten up the axle at all without them.
Without the spacers, tightening the axles produces a large side force on each bearing. The forces are: frame, inner race, balls, outer race, wheel, outer race, balls, inner race, frame.
With the spacers, the force is: frame, inner race, spacer, inner race, frame.
The spacers are cheap (about $10 per set). You need to specify which bearing size and the axle diameter (6mm or 8mm).
