Premature belt failures are caused by improper installation practices.
There, we said it. It needed to be said, and we said it.
We know what you’re thinking:
“How could this be, everyone knows how to install a belt…I know how to install a belt!”
It’s ok…read on…we’ll help you through the trauma of becoming belt aware.
In upcoming weeks, we’ll make you one with the belt drive.
Episode One: Terminology!
Let’s start with a review of terminology.
Components that transmit power from the motor shaft to the fan shaft.
Pulley with grooves for V belts (pulleys are for flat belts)
AKA motor sheave; mounts on the motor shaft.
AKA blower sheave; mounts to the fan shaft.
Split Taper Bushing
Secures sheave to a shaft via friction.
Square metal stock used to engage the sheave with the shaft.
Groove machined into shaft and sheave to accommodate shaft key.
Flexible belt with angled contact surfaces.
Movable motor mount that allows for belt adjustment.
Base attached to the motor, used for alignment and adjustments.