Oberdorfer 6408 Coupling – Fits 991
This is the genuine Oberdorfer 6408. A coupling is deliberately the sacrificial element in a drive train: it is meant to wear or fail before the shafts and bearings do.
A failed coupling can leave the pump stationary while the driver runs, which on a cooling circuit is a fault that costs a great deal more than the coupling did.
Check alignment in both planes whenever a coupling is renewed on a pedestal installation.
Key Features
- Genuine Oberdorfer 6408 coupling component
- Factory material specification
- Transmits drive torque while absorbing small misalignment
- Protects pump and driver bearings from shock loading
- Direct replacement for the original component
Applications
- Pedestal mounted pump and driver assemblies
- Engine and motor driven marine pumps
- Industrial circulation and transfer installations
- Drive train repair after a coupling failure
- Scheduled maintenance of Oberdorfer pump sets
Specifications
- Brand: Oberdorfer
- Manufacturer: Ingersoll Rand
- Manufacturer Part Number: 6408
- Part Type: Coupling
- Fits: 991
- Condition: New
Frequently Asked Questions
Q: Why did the last coupling fail early?
Alignment is the first thing to check, then a worn keyway or a bent shaft. A coupling rarely fails on its own account.
Q: Does alignment need checking after fitting?
On any pedestal or coupled installation, yes, in both the angular and parallel sense.
Q: Can hubs be driven on with a hammer?
Avoid it. Impact damages the bearings at both ends of the drive train before the pump has turned a revolution.
Q: Is a spare worth holding?
On a critical circuit it is, because a coupling failure stops flow completely and with no warning.
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 coupling before you order.
CLRMarine
