Fenner Flex Drive Belts

[junquecol]

Back in the summer, I bought an older Delta model 10 contractor's saw. First I was thinking of using it as a parts saw, but after cleaning it up, I realized that it would be OK. Replaced the bearings on the arbor over the weekend. Put a new Goodyear Power Flex belt on saw. Saw viberated so bad, the you couldn't balance a ROLL of nickels on it. Took Fenner Flex off my shop saw and put on this saw. You can now balance a nickel on this saw. Kept stock pulleys as they were cast iron, made by Browning. A new Flex belt will definitely be on this saw.

 

[scsmith42]

Bruce, I've often wondered if the packaging found on automotive type belts contributes to the vibration. Seems to me that there may be a bit of memory in the belt cords that would cause a problem.

Where does one acquire the Fenner Flex belts from?

Scott

 

[junquecol]

Most woodworking stores now stock Fenner Flex belts, AKA link belts. The 1/2"/ A belts are red in color. They were originally designed for the HVAC service industry. A tech could just make what ever length of belt he needed to get air handler running. Especially helpful when supply houses aren't open. In Line Industries (maker of PALS, and Duby sled) first marketed them to woodworkers. Johnstone supply will sell you a 100" roll, if you need that much. Expect to pay a little over six bucks a foot. Only major problem with flex belts is they are made from polyurathane. If pulley spins just once, belt developes a bump.

 

[scsmith42]

Bruce, thanks for the info. Graingers stocks these as well - I'm familiar with the product but not the name.

Regards,

Scott

 

[Ozzie-x]

This is good info to achieve smooth running machines. By coincidence, I'm going by Johnstone tomorrow and will ask about the Fenner belts. Scott is right about belts having a memory. Many times belts come packaged such that they are doubled or rolled up, and have kinks/bends that have "memory", and you will get "thumpity-thump" and vibration when you run the machine regardless of how you tension the belt or whatever. I went through this exercise one time with my tablesaw. Last night, I went to the auto parts to get a belt for a lathe I'm restoring. Ended up getting a wrap type belt made for lawn mowers because it was not doubled or rolled up. Surprisingly, it runs very smooth on the lathe.