im getting this small grinder operational and i wonder about the spindle. er16, around 15'000 rpm. its quiet, has no vibrations and is pretty stiff for its size, 0.01 mm up and down by hand pressure (0.0004"). however there is axial play of 1 mm (0.04"). when under power it gets pushed forward and doesnt seem to be rubbing, no idea if the belt/pulley does it or what. thre is no problem gringing with small stones (13 mm).
so i have been thinking, maybe thats how its supposed to be? kind of insurance against breaking the stone in a hole? i cant think of a configuration that would still run well with that much wear. could it be designed that way?
thoughts?
so i have been thinking, maybe thats how its supposed to be? kind of insurance against breaking the stone in a hole? i cant think of a configuration that would still run well with that much wear. could it be designed that way?
thoughts?
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