Pulley size for Le Roi model# 5000

by John
(Bucks county PA.)

Hi my name is John , I wanted to know if you have any idea what size double groove pulley is correct for the electric motor ?


LeRoi compressor head model# 5000 .. 5 HP electric

Thank you for any help you can give me ..

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Feb 11, 2017
Motor first - then pully
by: Doug in s.d.ca.

Understood.

Still need to know the diameter of the pump sheave, and the RPM and HP of the motor.

If you're going for 5HP, you'll want/need a 230V, preferably 1750 RPM motor.

Those aren't cheap, so go shopping and chose what motor you can get, and we can go from there.

Feb 11, 2017
Le ROI 5000
by: John

Yes the plate says max 5hp max rpm 770 .... I picked up this compressor it has only the tank and the 5000 compressor head and pulley so I am trying to figure what single phase motor and what size pulley i should purchase to accomplish the proper RPM'S

Feb 11, 2017
Pulley size for Le Roi
by: Doug in s.d.ca.

Oh, just stumbled on something that says 770 is max RPM so we can go with that.

Feb 11, 2017
Pulley size for Le Roi
by: Doug in s.d.ca.

It depends on the sheave on the pump, and the RPM of the motor.

With that, we can guess based on a (probable) 1000 RPM for the pump.

I'm not finding specs on the pump, but there may be such info on the info plate of the pump. You may have to go a bit lower pump speed, depending depending on how much air it's trying to compress per revolution.

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