- Joined
- Jun 29, 2014
- Messages
- 4,170
Yes, but bronze has to have more clearance left in for oiling. With a roller bearing you can preload the bearings to almost zero clearance. Yes, they're expensive but so is everything in the machining world lol.
Bronze bearings like you are describing often have grooves or oiler holes to allow for lubrication. While there is clearance between the spindle and bushing, the purpose is for proper runout and preloading of the spindle. Clearance that you are referring to is usually in sliding bronze elements not rotating ones.
With that said, you are rolling the dice on purchasing without testing. Do a search on buying surface grinders here and you will get some good advice on what to look for and what to do.
Edit: ball bearing races are usually sliding or press fits so very, very little clearance or an actual intereference. We are comparing apples to oranges when talking about clearances.
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