Belt speed calculation.

Looks like you've got about 2199 sfpm belt speed using the single pulley setup of 6" on motor, 4" on shaft, and 4" wheel. "IF" you're able to to to the 3 step pulley of 2-3-4 (typical size here in USA) the following would be your speeds.

Grinder%20Belt%20Speeds_zpsmwhjihjl.png


That is a good selection of speeds - same as I was using before I got the VFD and was using the pulley setup.

Anything more just holler.

Ken H>
 
For me, 1800 SFPM is ok for just about everything.

Jesse

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I would prefer not to have to buy any more pulleys as per the cost noted earlier in the thread so will have to go with what I have for now unless the 2200sfpm is a bit shy for accross the board use as many have quoted about 3000sfpm as a sort of benchmark even if slower speeds will work. I can make a 5 inch belt pulley (no cost involved) which should lift the belt speed a little if necessary.
 
Awww, you're right - I was thinking you'd got a 3 step pulley from your buddy, but when back and looked and saw it was a 3" pulley. I think your 2199 sfpm is a good single speed. While it's not as much as you'd like for profiling, it's also a bit slower to use for beveling.

As I've said before, many folks here on really appreciate how good we've got it in USA for purchasing stuff.

Ken H>
 
Ok. will leave it as is and look forward to getting the motor polarity changed on wed so I can get into some blades that are ready for a bit of scratching on.
 
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