pulleys R us

I needed a new pulley for my compressor when the new pump arrived . So I cast a

Have you checked your lathe?

Look in your city for a place called Johnstone Supply. They are HVAC distributors, and do have some pulleys. I have account there. If they have it and won't sell you, I'll buy one and ship it to you.

where would you try next?

If it matters, "A" only(or 4L) size belt (everybody has went to dual A and B on same pulley), 3.15" OD, two groove. The old broke one has a QD bushing, I'll take one with 5/8 bore.

Karl

If you were in the UK I would suggest Challenge PT

Good one!

Are you still not home?

yep, going to have to make it. Got plenty on my plate right now, didn't want to spend several hours on a $20 part.

Yep Tom, I'm back up nort'

Surplus Center Item# 1-2BK34-B It is an a-b but should give you your diameter from the a only pulley. Unless you are limited by OD.

I am confused. I thought the two groove pulleys can use either two A size or two B sized belts. I can not imagine anyone making a pulley that was two groove with one groove for an A size belt and the other groove for a B size belt. I think they list two diameters because the pitch diameter is different when used with an A or B size belt. Look at your Grainger catalog. It lists a single groove pulley of 3.15 outside diameter and lists A and B pitch diameters.

Dan

Yea, like you have something better to do?

You found the one I bought. Couldn't make it fit.

Karl

The "A" only pulley is 0.500 wide at the top of the pulley groove.

The "A B" is 0.625 wide at the top of the grove and plenty deep to run an "A" pulley. BUT it is wider and larger OD than the pulley runs, also make a double groove put a gap between belts.

I learned this the hard way.

Karl