These are great for very high speed applications, I used these to rebuild a very high speed hand drill like a dentist uses (300,000 RPM). The only problem is they are only shielded on on side. I don't think that this will be a problem since the bearings are inside a housing. Shipped and received them super quick. Very happy about rebuilding this air motor for just a few dollars over buying a new one for over $150.00.
Verified purchase: Yes | Condition: New
Very good!!!
Verified purchase: Yes | Condition: New
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