it seems to me that gear driven machines pump alittle more psi and gpm than belt with the same specs. has anyone noticed this ?
How many machines have you tested back to back? How did you test the gpm and psi on them? Same engines, water supply, hose length and fittings?
just from what I’ve observed
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In general, gear driven systems are more efficient than belt driven systems. You have loss from belt slip with V belts where gears don’t slip. Even cogged belts or timing belts have more losses due to the friction of rubber teeth entering and exiting the pulleys. All belt driven systems generate a lot of heat, this is a dead giveaway you’re losing efficiency. Precision gears will have loses in the form of heat as well, but much less than belts.
exactly
i prefer gear drive, but you have to make sure it doesn’t rust onto the shaft is all.
