Needle Bearings Or Ball Bearings


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Old 07-27-04, 01:18 AM
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Needle Bearings Or Ball Bearings

can someone help me on deciding which angle grinder would be better.
4-1/2" grinder with neddle bearings
4-1/2" grinder with ball bearings ---- amps are same on both & both are same name grinders.
thanks--mccoy
 
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Old 07-27-04, 05:39 AM
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The style of bearings won't make one much better than the other.

Are there not other features to set them apart?
 
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Old 07-27-04, 08:19 AM
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Grinders

the only difference are the type
the ball bearing is industrial grinder
the needle bearing is heavy duty grinder.
other than this acording to description there is no difference.
thanks--mccoy
 
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Old 07-27-04, 03:35 PM
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How about price?

I purchased a 4 1/2" DeWalt grinder a couple of years ago.
Needed it and just grabbed one that looked good off the local store shelf.
Now that I am thinking of a second one and compare others to what I have, I see that I happened to grab one with a metal gearbox. The inexpensive ones are all plastic and I now have to go out of my way to find one like my old one.
 
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Old 07-28-04, 06:16 AM
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Hello WHEELERBUFFY mccoy! I asked your question to a customer of mine who builds custom commercial kitchen and cafeteria equipment. He cuts, bends, and welds stainless steel into sinks, countertops and so on. His shop does an awful lot of grinding. They need to clean each weld with a grinder and then polish so the grain in the stainless matches. His suggestion was to go with the needle bearings because they will perform better during extended all day use and will allow less "wobble" as the tool ages. Good luck. NBK
 
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Old 08-29-05, 09:40 PM
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Needle beairngs are probably better, but any bearing is better than just a bushing.

Think of needle bearings like cylinders rolling against each other... Seems to be more stable.


Jim
 
 

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