Excavator Coupling ASSY New Condition For Doosan MEGA 300 Coupling

Product Description:

Packaging & Delivery :

Product show as below:

Contact details

YINGFENG CONSTRUCTION MACHINERY LIMTED

Guangzhou XIEBAGN MACHINERY CO., LIMTED

specialized in:

couplings, rubber mounts, gera parts, hydraulic seals and seal kits for hydraulic hammers, rock breakers, hydraulic excavators,wheel loaders, and JCB badkhoe loaders.

And, Our company also supply:

Engine parts, hydraulic piston pump and hydraulic travel motor, Swing motor assembly and hydraulic component parts, electric parts, etc. Hydraulic hammer breaker parts with piston, cylinder, chisel, through bolt, side bolt, top bush, front head bushing,accumlator, valve, etc.

We always try our best for all our customers and make it better and better. Welcome!

Coupling information:

Coupling installation method
1. Bolt direct fixing type
Low cost, most common connection method. However, since the front end of the screw is in direct contact with the shaft, the shaft may be damaged or difficult to remove. Attention must be paid.
2. Holding type
Use the force of the countersunk head bolt to shrink the slit and hold the shaft tightly. Easy to install and remove without damaging the shaft.
3. Separate type
Because the shaft sleeve can be completely separated, it can be used without moving devices, fixing, and disassembling. In addition, there will be no damage to the shaft.
4. Semi-separated type
The connection method of the shaft sleeve adopts the clamping type at one end and the separation type at the other end. First fix one end of the shaft to the clamp-type bushing end, and then install the other end of the shaft in the separate-type bushing. Easy to install!
5. Keyway type
The same as the direct bolt fixing type, it is the most traditional fixing method. It is suitable for high torque transmissions to prevent axial movement, and is usually used with bolts directly fixed type and clamp type.
6. The expansion-tightening sleeve type utilizes the connection method of the conical hypotenuse amplifiion effect, which can realize reliable and stable connection. Suitable for high-torque transmissions, most suitable for machine tool spindles.

Your Trusted Excavator Parts Supplier – Manufacturer & One-Stop Sourcing Solution

Looking for a reliable supplier of excavator parts? Whether you need OEM services or a complete range of parts, we provide the best solutions for your business. As both a manufacturer and trading company, we combine factory-direct prices with the convenience of one-stop sourcing, ensuring that you get high-quality parts at competitive prices.

At YNF Machinery, we specialize in excavator rubber parts and a wide range of excavator components. Our extensive experience and commitment to quality make us a trusted partner for distributors, wholesalers, and repair shops worldwide.

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✅ Largest Excavator Rubber Parts Factory in Southern China

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We have over 16 agents across China and are actively expanding our global presence.
✔ Looking for distributors and agents worldwide—let’s grow together!
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With decades of experience, we understand the excavator parts market inside out.
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Looking to develop your own brand or need custom parts? We’ve got you covered!
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Our Guangzhou office and showroom allow for easy business meetings and fast shipping.
✔ View and inspect products before ordering
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What Excavator Parts Do We Offer?

We cover all major excavator brands, including Caterpillar, Komatsu, Hitachi, Volvo, Kobelco, Doosan, Hyundai, JCB, Kubota, and more. Our product range is designed to keep your machines running efficiently and reduce downtime.