As mechanically inclined person:
"Designed to narrower tolerance" usually just means it's more expensive and accurate. For bearings it's great idea if you want longevity.
Allowance on the other hand is completely different matter.
"Designed to narrower tolerance" usually just means it's more expensive and accurate. For bearings it's great idea if you want longevity.
Allowance on the other hand is completely different matter.
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