Product Description

Replacement Kaeser Elements-Flexible Elastomeric Coupling Parts & Kits Screw Air Compressor Spare Parts E30 5.3129.0 5.3129.3 E40 5.3177.1 E10 5.3246e4  E20 

Product Description


CHINAMFG E Series Flexible Elements size(s) E30 close coupled style with standard imperial and standard shoe coating in Urethane (Orange) material for elastomeric couplings.

Elastomeric Coupling Type;
8-1/4″Outside Diameter; Element;
Rubber; 2.44″ Between Shaft Ends;
E30 Coupling Size;
5800RPM Maximum Speed;
3651In-Lbs Torque

Component: Element
Coupling Type: Elastomeric Coupling
Coupling Size or Series : E30
Material: Rubber
Torque: 3651In-Lbs
Maximum Speed RPM: 5800

Coupling Features

  • Good starting performance can change the load starting of the motor to no-load starting, so as to realize the soft starting of the working machine, reduce the current during starting and reduce the starting energy consumption.
  • Save electric energy and equipment cost, which can solve the unreasonable situation of the big horse-drawn trolley with load starting machine, save the motor capacity, improve the power factor and motor efficiency of the grid, reduce reactive power loss, save electric energy, and simplify the motor starting equipment and reduce equipment cost.
  • The transferred torque can be adjusted, easy to achieve overload protection.When the working machine is overloaded or jammed, the steel ball type safety coupling will slip automatically, which can prevent the motor from burning out and other parts damage.
  • Except for the starting and braking stages, the main and driven parts of the steel ball safety coupling have no speed difference, no friction loss and high transmission efficiency.
  • Nonmetallic elastic elements are adopted in the steel ball type safety coupling, which can compensate the offset of the linked 2 axes within a certain range, with a small amount of buffering and damping.
  • Reliable operation, stable performance, convenient installation, disassembly and maintenance.

Determining the right type of flexible coupling starts with the following analysis of the application:

  • Prime mover type (motor, diesel engine, etc.) of the drive side of the system
  • Actual horsepower and/or torque requirements, not prime motor-rated horsepower (note the range of variable torque caused by periodic or unstable loads, worst-case starting loads,
  • Drive system inertia related to prime mover inertia (data available from equipment supplier)
  • vibration, linear and torsional vibration (experienced supplier or consultant can help you evaluate vibration) shaft-to-shaft deviation;
  • Note the degree of Angle offset (axis is not parallel) and parallel offset (distance between axis centers when axes are parallel but not aligned);
  • Also note whether the drive/driven units share the same floor axial (inside/outside) axial motion,
  • whether they share distance (the distance between the drive end and the driven axis), and any other space-related restrictions.


Detailed Photos



We are able to offer a wide range of special couplings, which are based on your samples or drawings.

Due to the refinement of production operations and the high-end technology, we have been able to produce high-quality Rubber Coupling, Trolley Wheel, Flexible Coupling, Flexible Rubber Coupling, Industrial Rubber Coupling, Star Coupling, CHINAMFG type Coupling Spare and other products, widely used in industrial applications.


All these products are tested and checked against the set quality parameters before being sent to the customer. This shows that we are willing to provide our customers with updated and perfect product lines to meet their different needs. In addition, we also provide customized solutions to provide customers with a wide range of space, so that they can choose their favorite products according to their needs and requirements.

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1613982300 1626510900

74987806 574991005 574991106 574991133 574991401 6259092600 6259094000
1613677700 1613680401 1613684101 1613685204 1613687900 574988132 574991017
1957157125 1957157147 1957157157 1957157169 1957157185 1613679600 1613681801
2901168000 2901170000 2901171200 2901172300 2901173300 1957157142 1957157153
6259092000 625957100 6259094500 6259096700 2901168402 2901170800
574987807 574991006 574991107 574991135 574991404 6259092700
1613678300 1613680500 1613684630 1613685380 1613688200 574991001 574991018
1957157126 1957157148 1957157158 1957157170 1957157196 1613680000 1613682800
2901168100 2901175710 2901171300 2901172400 2901173500 1957157143 1957157154
6259092100 6259094600 6259095600 6259096800 2901168403 2901170900
574987901 574991007 574991108 574991137 574991004 6259092900 6259094200
1613679001 1613681300 1613684783 1613685480 1613680400 574991003 574991101
1957157127 1957157149 1957157159 1957157172 1957157146 1613685710 1613683702
2901168200 2901175710 2901171500 2901172500 2901169700 6259095000 6259096000
6259092200 625957100 6259094700 6259095700 625957100 574991127 574991142
574988106 574991009 574991117 574991138 574991102 1613685083 1613685980
1613679007 1613681401 1613684881 1613685780 1613684100 1957157164 1957157180
1957157135 1957157150 1957157161 1957157173 1957157156 2901171900 2901172900
2901168300 2901170400 2901171600 2901172600 2901171100 625957100 6259096100
6259092300 625957100 6259094800 6259095800 62595710 574991128 574991143
574988113 574991571 574991118 574991140 574991132 1613685200 1613686000
1613679200 1613681600 1613684980 1613685880 1613685202 1957157165 1957157182
1957157136 1957157151 1957157162 1957157174 1957157168 2901172000 2901173000
2901168400 2901170600 2901171700 2901172700 2901172200 6259096200
6259092500 625957100 6259094900 6259095900 625957100 574991129 574991144
574988116 574991013 574991125 574991141 574991145 1613685201 1613686600
1613679400 1613681701 1613684981 1613685900 1613687800 6259096500
1957157141 1957157152 1957157163 1957157175 1957157184 1957157145 1957157155
2901168401 2901170700 2901171800 2901172800 2901173200 2901168500 2901171000
1957157167 2901172100 1957157183 2901173100 6259096300

This is only a part of the part numbers, many oil separator filters P/N are not listed, in addition there are replacements filters for many other air compressor brands.


Company Profile

       Now over 100,000 quality filters including compressed air filters, Hydraulic Filters and complete filter housing assemblies at wholesale discounts. We offer OEM products as well as high quality replacements, engineered to precise OEM specifications and guaranteed to match the exact form, fit and function as the original equipment. Our company is committed to continuous innovation and further improvement to create, improve the efficiency and productivity of excellence, to achieve the highest level of reliability and performance.

Company team

Our company is located in the beautiful coastal city of HangZhou,is a professional manufacturer of air compressor filters and separators,

We repect the enterprise spirit of “steadyfastness,hard work and responsibility” and creat a good corporate environment based on the operation principle of “Integrity,reliability and innovation”.



With the survival idea of “perfect technology, good service and excellent quality”,
We always adhere to customer first,
aim at serving customer sincerely and touching customer with our service.

We plunge ourselves to provide clear and sustainable comprssed air to our customer,
meanwhile constantly pursue to save the sunning cost of compressor system for them.
Profession, concentration, focus is our corporate philosophy.




 Q1. What is your product range?
A: Our products cover replacement hydraulic filter, Air compressor filters, Compressed air filter element, Heavy truck insert filters, Vacuum pump filters, and Some spare parts for compressors.

Q2. Is customized filter or OEM available? 
A: Yes, just offer your required specifications and drawings.

Q3. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build new molds, but open new mold fee charged, when you place bulk order, the mold fee can return back.

Q4. What’s your terms of packing?
A: Generally, we pack our goods in neutral boxes,outside brown carton cases. If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters.

Q5. What’s your terms of delivery?
A: (1)FOB (2)CFR (3)CIF.

Q6. How about your delivery time?
A: Generally, under MOQ quantity take 5-7 working days after receiving your advance payment. The specific delivery time depends on models and the quantity of your order.



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flexible coupling

Can flexible couplings be used in precision motion control systems?

Yes, flexible couplings can be used in precision motion control systems, but careful consideration must be given to their selection and application. Precision motion control systems require high accuracy, repeatability, and minimal backlash. Flexible couplings can play a crucial role in such systems when chosen appropriately and used in the right conditions.

Selection Criteria: When selecting a flexible coupling for a precision motion control system, several key factors should be considered:

  • Backlash: Look for couplings with minimal or no backlash to ensure accurate motion transmission and precise positioning.
  • Torsional Stiffness: Choose a coupling with sufficient torsional stiffness to minimize torsional deflection and maintain accurate motion control.
  • Misalignment Compensation: Ensure the coupling can accommodate the required misalignment without introducing significant variations in motion accuracy.
  • Dynamic Performance: Evaluate the coupling’s dynamic behavior under varying speeds and loads to ensure smooth and precise motion control during operation.
  • Material and Construction: Consider the material and construction of the coupling to ensure it can withstand the specific environmental conditions and loads of the motion control system.
  • Size and Space Constraints: Choose a compact and lightweight coupling that fits within the available space and does not add excessive inertia to the system.

Applications: Flexible couplings are commonly used in precision motion control systems, such as robotics, CNC machines, semiconductor manufacturing equipment, optical systems, and high-precision measurement instruments. They help transmit motion from motors to various components, such as lead screws, spindles, or precision gears, while compensating for misalignments and providing shock and vibration absorption.

Specialized Couplings: For ultra-high precision applications, specialized couplings, such as zero-backlash or torsionally rigid couplings, may be preferred. These couplings are designed to provide precise motion transmission without any play or torsional deflection, making them suitable for demanding motion control tasks.

Installation and Alignment: Proper installation and alignment are critical to achieving optimal performance in precision motion control systems. Precise alignment of the coupling and connected components helps maintain accurate motion transmission and minimizes eccentricities that could impact the system’s precision.

Summary: Flexible couplings can indeed be used in precision motion control systems when chosen and applied correctly. By considering factors like backlash, torsional stiffness, misalignment compensation, and dynamic performance, users can select the right coupling to ensure high accuracy, repeatability, and reliable motion control in their specific application.

flexible coupling

How does a flexible coupling handle alignment issues in long-distance shaft connections?

In long-distance shaft connections, it is common to encounter alignment issues due to factors such as thermal expansion, foundation settlement, or machinery shifts. Flexible couplings play a crucial role in handling these alignment issues and ensuring efficient power transmission. Here’s how they achieve this:

  • Misalignment Compensation: Flexible couplings are designed to accommodate both angular and parallel misalignments between shafts. When the shafts are not perfectly aligned, the flexibility of the coupling allows it to bend or flex, reducing the transmission of misalignment forces to connected equipment.
  • Reduced Stress on Equipment: By absorbing and compensating for misalignment, flexible couplings reduce the stress and loads imposed on connected machinery. This feature is particularly important in long-distance shaft connections, where misalignment can be more pronounced.
  • Torsional Flexibility: In addition to angular and parallel misalignments, long-distance shaft connections may also experience torsional misalignment. Flexible couplings can handle torsional flexibility, allowing smooth torque transmission even if the connected shafts have slightly different rotational speeds.
  • Vibration Damping: Long-distance shaft connections can be susceptible to vibrations due to the extended span and potential resonance. Flexible couplings help dampen these vibrations, protecting the connected equipment from excessive wear and fatigue.
  • Resilience to Shock Loads: Long-distance shaft connections in industrial settings may experience shock loads due to sudden starts, stops, or equipment malfunctions. Flexible couplings can absorb and dissipate some of these shock loads, safeguarding the connected components.
  • Longevity: By mitigating the effects of misalignment, vibrations, and shock loads, flexible couplings contribute to the longevity of the connected equipment and reduce maintenance and replacement costs over time.

When selecting a flexible coupling for long-distance shaft connections, it is essential to consider factors such as the degree of misalignment, torque requirements, operating conditions, and the environment in which the coupling will be used. Regular inspection and maintenance of the flexible coupling can further enhance its performance and ensure reliable operation in long-distance shaft connections.

flexible coupling

Are there any safety considerations when using flexible couplings in rotating machinery?

Yes, there are several safety considerations to keep in mind when using flexible couplings in rotating machinery. While flexible couplings offer numerous benefits in terms of misalignment compensation, vibration isolation, and shock absorption, improper use or maintenance can lead to safety hazards. Here are some important safety considerations:

  • Proper Installation: Ensure that the flexible coupling is installed correctly and securely following the manufacturer’s guidelines. Improper installation can lead to coupling failure, unexpected disconnection, or ejection of coupling components, which may result in equipment damage or injury to personnel.
  • Alignment: Proper shaft alignment is essential for the reliable and safe operation of flexible couplings. Misaligned shafts can cause excessive stress on the coupling and connected components, leading to premature wear and possible failure. Regularly check and maintain proper shaft alignment to prevent safety risks.
  • Operating Conditions: Consider the environmental and operating conditions of the machinery when selecting a flexible coupling. Some couplings are designed for specific temperature ranges, hazardous environments, or corrosive atmospheres. Using a coupling that is not suitable for the operating conditions can compromise safety and performance.
  • Torque and Speed Limits: Always operate the flexible coupling within its specified torque and speed limits. Exceeding these limits can cause coupling failure, leading to unexpected downtime, equipment damage, and potential safety hazards.
  • Maintenance: Regularly inspect and maintain the flexible coupling to ensure its continued safe operation. Check for signs of wear, damage, or corrosion, and promptly replace any worn or damaged components with genuine parts from the manufacturer.
  • Emergency Stop Mechanism: In applications where safety is critical, consider implementing an emergency stop mechanism to quickly halt machinery operation in case of coupling failure or other emergencies.
  • Personal Protective Equipment (PPE): When working with rotating machinery or during maintenance tasks involving couplings, personnel should wear appropriate PPE, such as gloves, eye protection, and clothing that can resist entanglement hazards.
  • Training and Awareness: Ensure that personnel working with the machinery understand the potential hazards associated with flexible couplings and receive proper training on safe handling, installation, and maintenance procedures.

By adhering to these safety considerations, operators and maintenance personnel can mitigate potential risks and ensure the safe and reliable operation of rotating machinery with flexible couplings. Additionally, it is essential to comply with relevant safety standards and regulations specific to the industry and application to ensure a safe working environment.

China supplier Replacement Kaeser Elements-Flexible Elastomeric Coupling Parts & Kits Screw Air Compressor Spare Parts E30 5.3129.0 5.3129.3 E40 5.3177.1 E10 5.3246e4 E20  China supplier Replacement Kaeser Elements-Flexible Elastomeric Coupling Parts & Kits Screw Air Compressor Spare Parts E30 5.3129.0 5.3129.3 E40 5.3177.1 E10 5.3246e4 E20
editor by CX 2023-12-19