What is turbocharger balancing?

Turbocharger balancers are typically based on the. Hines Cradle Balancing Machine which offers two plane balancing. With two plane correction, the turbocharger can be corrected for stack up unbalance caused by the compressor and thrust spacers.

Does a turbo have to be balanced?

The answer is a definite “YES,” all turbochargers need to be balanced during and after assembly. If you do not properly balance your turbocharger, you can burn out the bearings, seals and thrust collar with off-balance, non-parallel rotation.

What is VSR balancing?

The purpose of the VSR balancing process is to control a turbo’s vibration level, both to reduce noise and to prolong bearing life. This vibration force is initially transmitted through the turbo bearings, and high levels can cause excessive loading and premature bearing failure.

What does Chra mean turbo?

center housing rotating assembly
The center housing rotating assembly (CHRA) refers to SWA installed in the center-housing but without the compressor and turbine housings.

What is the balance tolerance for a turbocharger?

Modern turbocharger tolerances are typically expressed in milligram-inches, or thousandths of a gram-inch. For example, the Garrett T-3 and T-4 frame turbos generally have component balance tolerances around .010 gram-inches (10 milligram inches). One area of confusion about turbo balancing is component versus assembly balance.

How big does a turbo balancing machine get?

It is a technical computerised state of the art machine used to balance turbo rotor assemblies with a capacity of up to 20kg in weight as well as being 400mm in diameter.

What are the different types of Turbo Chra balancing?

There are two types of Turbo CHRA balancing, high speed (VSR) and low speed (balancing machine). The VSR (Vibration Sort Rig) is a machine that uses compressed air to spin the assembled Turbo CHRA to a relatively high speed, while pressure oiling the bearings and sensing vibration of the unit.

Can a turbo be preformed without balancing it?

It can’t be preformed on a turbo without having conducted the previous steps. Doing so can cause damage to the machine or operator. We will not check the balance on your new EBAY turbo. Balancing is absolutely vital to turbocharger rebuilding, because it provides the stability that is critical at high speeds.