Product Description
Product Description
KTR BOWEX FLE-PA 48 D-241 Flange Coupling For Excavator Hydraulic Pump
| Port | HangZhou |
| Standard or Nonstandard | Standard |
| Balance | Balanced |
| Application | Excavator/Wheel loader/Truck |
| Tardmark | YNF |
| Part Name | Excavator coupling assembly |
| Stock Condition | In Stock |
Our advantages:
1). OEMs Supplier,
2) Professional manufacturer,
3). Professional and high efficiency equipments
4). Quality first, Great variety
5). Good service
More Excavator coupling for your review
1. 8A: SK04V2 PC20
2.16A: PC60 PC40 EX50
3. 16AS: PC40-5 EX55
4. 30A: SK100-5 CZPT MS70B E307
5. 30AS: EX60 HD250 S60-6 SK07
6. 30H: MS110 DH55
7. 40H: EX200-2
8. 50A: E312 E120B HD450 E3118B
9. 50AS: MS120 MS110 MS140 HD512 SH120 LS120 HD450 E120 SH100
10. 50AC 14T : E200B SH200
11. 50AM 16T: MS180-8 E320 E240
12. 50H: EX200-1 EX200-3 EX200-5 HD700 PC200-1 HD800 PC200-3 PC200-5 HD900 E320
SK200 SK220 R210 LS160 LS70 E320B SK200-6 SK200-3 E320C DH220-5 R220-5 R225-7
13. 110H: EX220 EX300-1 EX300-2 EX300-3 SK230 SK220-3 ZAX330 EX350-5 EX330 E325 LS430 EX300
14.140H: HD280 HD1430 PC300-1HD1250 R300 HD300 E330 SK912 SK820 HD1880 DH320-2
15. 160H: LS380 R290 R300-5 SH300A2
16. 28AS: EX120
17. 28A: ZAX200
18. 45H: ZAX200
19. 25H: R60-7 ZAX55
20. 50AM 20T: SH280
We also have stock in these parts:
1. Crank shaft, various sun gear, various planet gears, drive shaft, various travel coupling, transmission gear, speed cut gear, various travel gear discs, travel bearing cover, minor axis, varous drive shaft, vertical shaft
2. Excavator bearing
Material options for H series Couplings H series coupling we produced is made of Hytrel. It has elasticity like that of rubber. It is excellent in absorbing vibrations and shocks. It also excels in resistance to heat, low temperature and oil. Input and output can be connected and disconnected easily merely by moving axially. By using a unique claming mechanism, mounting in a spline shaft is possible. Hub and spline shafts are completely fixed by using a clamping hub of the mechanism. No fretting wear is caused.
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Workshop & FAQ
1.What parts you have ?
-We are specialized in the excavator spare parts, such as electrical parts,rubber series,pressure sensor series,valve series,mini parts,wearing parts and so on. If you have a lot of products to customize, we can also produce them.
2.If i don’t have part number, can you check for me?
– Yes, If possible, you can send us pictures of old products, nameplate or the size for reference.
3. How do you ship the goods and how long does it take?
– We usually ship by DHL,UPS,FEDEX. It usually takes 5-15days to arrive. By air,by sea are also acceptable

Impact of Flange Coupling on Noise and Vibration in a Mechanical System
Flange couplings play a significant role in the overall noise and vibration levels of a mechanical system. The type of flange coupling used and its design characteristics can have varying effects on the system’s noise and vibration. Let’s explore how flange couplings impact noise and vibration in a mechanical system:
1. Rigid Flange Couplings:
Rigid flange couplings, being solid and inflexible connections, are generally considered to be more rigid than flexible couplings. As a result, they can transmit vibrations more directly between the connected shafts and the rest of the system. The lack of misalignment compensation can lead to higher stress on the bearings and other components, contributing to increased vibration levels.
However, rigid flange couplings are also less likely to introduce any additional sources of vibration due to their simple and solid construction. If the system is well-aligned and requires no misalignment compensation, rigid flange couplings can provide a stable and reliable connection.
2. Flexible Flange Couplings:
Flexible flange couplings are designed to dampen vibrations and shocks in the system. The flexibility of these couplings allows them to absorb and minimize the transmission of vibrations between the connected shafts and the rest of the system. As a result, flexible flange couplings can reduce overall vibration levels and provide a smoother and quieter operation.
Additionally, the misalignment compensation capability of flexible flange couplings helps to reduce stress on the bearings and other components. By accommodating misalignment, these couplings prevent the system from experiencing excessive vibrations that can lead to premature wear and failures.
Overall Impact:
The choice of flange coupling design will significantly influence the noise and vibration levels in the mechanical system. In applications where precise alignment is crucial, rigid flange couplings may be preferred despite potentially higher vibration levels. On the other hand, flexible flange couplings are ideal for systems where misalignment is expected or where vibration dampening is a priority.
It’s important to consider the specific requirements of the application when selecting a flange coupling. Factors such as torque capacity, operating conditions, alignment needs, and desired noise and vibration levels should all be taken into account. Proper installation and maintenance of the chosen flange coupling can also impact its performance in reducing noise and vibration levels in the mechanical system.

How Does a Flange Coupling Contribute to the Longevity of Connected Equipment?
A flange coupling plays a crucial role in enhancing the longevity of connected equipment by providing several key benefits:
- Shock and Vibration Damping: Flange couplings, especially flexible types, are designed to absorb and dampen shock loads and vibrations that may occur during the operation of rotating machinery. By reducing the impact of these forces on the connected equipment, the coupling helps prevent premature wear and fatigue, thus extending the lifespan of the equipment.
- Misalignment Compensation: In many industrial applications, shaft misalignment is unavoidable due to various factors like thermal expansion, foundation settling, and equipment repositioning. Flange couplings, especially flexible ones, can accommodate both angular and parallel misalignment, ensuring that the connected equipment operates smoothly even under such conditions. This helps prevent stress on the equipment’s bearings and other components, leading to longer service life.
- Torsional Vibration Control: Torsional vibrations can occur in rotating machinery, especially when sudden changes in load or speed happen. Flange couplings with proper torsional stiffness and damping characteristics help control these vibrations, reducing the risk of fatigue failure in the connected equipment.
- Reduced Wear and Tear: By minimizing shock, vibration, and misalignment-related stresses, a flange coupling helps reduce wear and tear on the connected equipment’s components, such as shafts, bearings, and gears. This reduction in wear contributes to the equipment’s overall longevity and decreases the frequency of maintenance and replacement.
- Protection Against Overloads: Flange couplings can act as a safeguard against unexpected overloads in the system. In cases where the equipment experiences excessive loads or torque spikes, the coupling can provide a level of protection by disengaging or slipping, preventing damage to the machinery.
- Optimized Power Transmission: A well-selected and properly installed flange coupling ensures efficient power transmission between the driving and driven shafts. The smooth and reliable transfer of power reduces the risk of power losses, heat buildup, and excessive strain on the connected equipment, which are all factors that could impact its longevity.
- Corrosion Resistance: Flange couplings made from corrosion-resistant materials are well-suited for applications in harsh environments, such as those involving moisture or corrosive substances. By protecting against corrosion, these couplings help maintain the integrity and durability of the connected equipment.
In conclusion, a flange coupling’s ability to dampen shocks, compensate for misalignment, control vibrations, and optimize power transmission contributes significantly to the longevity and reliable performance of the connected equipment, ultimately leading to reduced downtime and maintenance costs.

Can Flange Couplings Handle Misalignment Between Shafts?
Flange couplings are designed to handle a limited amount of misalignment between shafts. However, their ability to accommodate misalignment is more limited compared to flexible couplings.
The misalignment that flange couplings can tolerate is typically in the form of angular misalignment and axial misalignment. Angular misalignment occurs when the axes of the two shafts are not perfectly aligned, causing the flanges to be at an angle to each other. Axial misalignment, on the other hand, refers to the displacement of one shaft along its axis with respect to the other shaft.
It is essential to note that excessive misalignment can lead to increased stress on the coupling and connected equipment. Flange couplings may not be suitable for applications with significant misalignment requirements.
For applications that involve substantial misalignment or require flexibility to accommodate misalignment, flexible couplings are more appropriate. Flexible couplings, such as elastomeric or jaw couplings, can handle both angular and axial misalignment more effectively than rigid flange couplings.
In summary, while flange couplings can handle some degree of misalignment, their primary strength lies in their ability to transmit high torques and withstand heavy loads in more rigidly aligned shaft arrangements. When dealing with misalignment-sensitive systems, it is best to consider flexible coupling options to ensure optimal performance and prevent premature wear on the equipment.


editor by CX 2023-09-11