Finish Thompson J102790 PTFE Impeller Bushing
Finish Thompson supplies the J102790 as the ptfe impeller bushing for DB6 through DB10, KC series and SP series magnetic drive pumps. It is the sleeve inside the impeller that runs on the ceramic shaft and carries the whole rotating assembly. It is built in PTFE, which is what decides where it can safely be used.
Most pumps see this part replaced well before the pump itself needs attention. The bushing is the designed wear point. Once it has play the impeller runs off center and starts touching the barrier, which turns a cheap part into an expensive repair. Confirm the material and size against your pump before ordering, as the same position is offered in several variants across this range.
Key Features
- PTFE Impeller Bushing in PTFE built to the original factory specification
- PTFE option for chemicals that attack carbon
- Shared across several Finish Thompson magnetic drive ranges
- Sized and finished to drop straight into the position it came from
- Inexpensive component whose failure takes the whole pump out of service
Applications
- Finish Thompson DB6 through DB10, KC series and SP series magnetic drive pumps
- Pumps specified with PTFE rather than carbon bushings
- Rebuild of a wet end with bushing wear
- Scheduled overhaul and annual inspection of the pump
- Repair of a pump taken out of service after a leak or a loss of performance
Specifications
- Brand: Finish Thompson
- Manufacturer Part Number: J102790
- Part Type: PTFE Impeller Bushing
- Material: PTFE
- Position: Inside the impeller on the pump shaft
- Fits: Finish Thompson DB6 through DB10, KC series and SP series magnetic drive pumps
- Quantity Per Pump: 1
- Condition: New
Frequently Asked Questions
Q: What causes rapid wear?
Dry running, abrasive solids in the fluid, and misalignment during reassembly are the three usual culprits.
Q: Is there a wear limit to measure?
Check for visible ovality, scoring or a loose fit on the shaft, since any noticeable play at this point shows up as vibration.
Q: Should it be replaced in sets?
If the pump has several bearing points it is worth doing them together, because one fresh bearing carrying a worn neighbor rarely lasts.
Q: Does it need a break in period?
No. It reaches its working clearance almost immediately once the pump is primed and running.
Not sure this is the right part? Send us a Picture of the pump plate on your pump and the CLR Marine team will confirm the correct impeller bushing before you order.
CLRMarine
