The center hub rotating assembly (CHRA) houses the shaft which connects the compressor impeller and turbine. It also must contain a bearing system to suspend the shaft, allowing it to rotate at very high speed with minimal friction. For instance, in automotive applications the CHRA typically uses a thrust bearing or ball bearing lubricated by a constant supply of pressurized engine oil. The CHRA may also be considered "water cooled" by having an entry and exit point for engine coolant to be cycled. Water cooled models allow engine coolant to be used to keep the lubricating oil cooler, avoiding possible oil coking from the extreme heat found in the turbine. The development of air-foil bearings has removed this risk.

Tonglint can design, process and produce cartridges according to clients' drawings and samples.

For clients in need of cartridges, it is strongly recommended to provide us the model and assembly no. Of products. If you have some special requirements for a certain one, please specify your requests and technical parameters.

If you want to get more information, please feel free to contact us.