Part Number: 4440032
Application Machine Brand Hitachi excavator
Machine Model ZX17U-2
Material Natural rubber (NOT RECYCLED RUBBER)
Install position between hydraulic pump & engine
Product Category Flexible rubber coupling
About the rubber coupling:
Rubber coupling is one of the most important parts in an excavator. It’s in stalled on the hydraulic pump. It’s between the hydraulic pump and the engine. The rubber coupling for the excavator is an engine drive coupling. It transmits the power from the excavator coupling to the hydraulic pump. When an engine starts, there is a lot of vibration. These vibrations are generally attenuated by engine damping rubber (also call the rubber engine mount or rubber engine pillow) and couplings. A good shock absorber (the engine mounts) and coupling can greatly extend the working life of an excavator engine and hydraulic pump.
A high-quality coupling will be made of high-quality raw materials. The raw material for making couplings is generally rubber, because rubber has excellent shock absorption.
In our industry experience, the most used mini excavator rubber couplings are CF-A and CB series couplings, such as the coupling models of CF-A-16, CF-A-22, CF-A-30, and CB-1008, CB-3316, CB-1325, TFC-25 and other models.
We produce the hose coupling with high quality. The hose coupling oil seal is made of natural rubber (NOT recycled rubber). And the iron has been color zinc plating.
Our hose coupling have very good properties in ductility and excellent oil repellent effect.
You can compare our hose couplings with other suppliers’.
Atlas Copco air compressor perfectly replacement
High quality cost-effective and low maintenance cost
Highly flexible rubber disc coupling for internal combustion engine drives. YNF coupling is a highly torsionally flexible flange coupling with an axial plug-in facility, providing a torsionally soft connection between an internal combustion engine and a driven machine.
Are you looking for the cat 325c excavator hydraulic pump coupling flange? The flange coupling is used beteen the hydraulic pump and the engine. It transmisses the power from the engine to the hydraulic pump, thus driving the excavator to working.
There are several models of couplings that can be used on the model CAT 325C. But mostly used is the flange coupling.
From the CATERPILLAR SIS, you can see that the coupling flange is installed on the 244-8477: PUMP GP-MAIN HYDRAULIC.
Below is the drawing of the 244-8477: PUMP GP-MAIN HYDRAULIC.
The excavator coupling 778322 16as is a coupling replacement for Centaflex CF-A-16 Series 2019608 3633643 778322. It’s in the A/AS series coupling provided by YNF Machinery.