China supplier Plastic Shoulder Bushing PTFE Inserts Flanged PTFE Sealing Sleeve PTFE Sliding Cum Spherical Bearings with Hot selling

Product Description

 

 

PTFE PRECISION MACHINING OF CUSTOM PLASTIC COMPONENTS

PTFE (Polytetrafluoroethylene)is a performance thermoplastic known for its chemical inertness & resistance to attack, low coefficient of friction, broad operating temperature range, excellent dielectric properties, thermal & electrical insulating, negligible water absorption and non-stick characteristic and among many others
PTFE resins have an upper service temperature of 500º F (260 C) and is 1 of the most widely used fluoroplastic material. PTFE mechanical properties are low compared to other advanced engineering plastics, but its properties remain useful over a temperature range of -400° F to 400° F forming its broad operating range suitable for many applications. PTFE can be used as low as – 436º F (-260 C ).
PTFE properties are often enhanced using a variety of fillers creating a PTFE compound, such as a 15 or 25% glass filled PTFE, to improve wear resistance, increase part stability, and improves creep strength and reduce deformation under load in comparison with virgin grade PTFE. For electrical insulators, the addition of glass filler has little impact on electrical properties.
PTFE GASKETS come in all shapes and sizes,Gaskets are an integral component of any device which requires the confinement of a gas or liquid. They compensate for the unconformity of mating surfaces. These surface irregularities may be minute or large depending on the purpose of the device but in all cases, the gasket is required to compensate for the difference while limiting the flow of fluid in either direction. Gaskets differ from seals in that gaskets are normally cut from sheets or rolls while seals are formed individually in their own configuration. A flat cut gasket is derived from material of specific thickness and to a configuration that is designed for a specific application
Expanded PTFEEPTFE Gasket material is a soft and conformable material that is ideal for applications with limited bolt load torque available. Or in applications such as glass lined pipe where excessive bolt load will cause more problems than it will solve. If you have never touched this exceptional sealing material think of a dense marshmallow. It has the same chemical resistance and temperature range as any PTFE but it is soft and will effect a seal much quicker than regular PTFE gasket material

Characteristics

  • High and low temperature resistance(-180ºC~+260 ºC)
  • Corrosion resistance(strong acid, strong alkali etc)
  • Weather resistance
  • High insulation
  • High lubrication
  • Non adhesion
  • Non toxic etc

We manufactures made-to-order high performance, high quality engineered plastic components

  • PTFE Ball valve seats, piston rings, seals, lips, cups.
  • PTFE bearings, bushings, wear strips
  • Diaphragms, insulators, lantern rings, V-rings, gaskets, washers, balls
  • Custom PTFE labware including wafer dippers, containers & process vessels
  • Low quantity PTFE parts and assemblies for university & commercial research projects.
  • Molded PTFE – Basic Shape material: PTFE Rod, Blocks, Plates and Tubes
  • A variety of made-to-order OEM industrial components

INDUSTRIES & APPLICATIONS INCLUDE

  • General Industrial PTFE Components
  • Chemical Handling such as Valve Bodies, Seats & Seals, Balls and Pump Parts
  • Semiconductor Processing Industry including custom Labware and Tools
  • PTFE Containers, Funnels and Molds for Pharmaceutical & Biotech research
  • Parts for Food Processing Equipment (made from PTFE FDA approved for food contact)
  • Packaging Equipment
  • Compressor Parts
  • Electronics & Appliances
  • Textile Machinery
  • Office Equipment

Turning Centers /Molding rings /MACHINING /TURNING

 

FAQ

1. Q: Are you trading company or manufacturer ?
A: We are manufacturer.

2. Q: How long is your delivery time?
A: According to the difficulty and quantity of product processing,It usually sent out 5-10days.

3. Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.

4. Q: What are the after-sale services?
A: In case of quality problems, the package can be exchanged within 30 days.

 

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Material: PTFE
Density: 2.1-2.3
Tempture: -180 ~ +280 Degree
Hardness: 50~60
Package: Carton
Certificated: SGS
Samples:
US$ 0/Piece
1 Piece(Min.Order)

|
Request Sample

Customization:
Available

|

Customized Request

sliding bearing

Differences Between Plain Sliding Bearings and Self-Lubricating Bearings

Plain sliding bearings and self-lubricating bearings are two distinct types of bearings used in various applications. Here are the key differences between them:

Plain Sliding Bearings:

  • Plain sliding bearings, also known as bushings, are simple bearing components that consist of a cylindrical sleeve made of a bearing material.
  • These bearings require external lubrication, such as grease or oil, to reduce friction and wear between the bearing and the shaft.
  • Regular maintenance and lubrication are essential to ensure proper operation and longevity.
  • Plain sliding bearings are cost-effective and suitable for applications where lubrication can be easily provided.
  • They are commonly used in low-speed and low-load applications, where the shaft slides within the bearing.

Self-Lubricating Bearings:

  • Self-lubricating bearings, also known as maintenance-free bearings, are designed to operate without the need for external lubrication.
  • These bearings incorporate solid lubricants, such as graphite, PTFE (polytetrafluoroethylene), or other additives, directly into the bearing material.
  • The solid lubricants are released gradually as the bearing operates, reducing friction and providing a consistent lubricating film.
  • Self-lubricating bearings are ideal for applications where frequent maintenance or lubrication is impractical or not feasible.
  • They are suitable for both low-load and high-load applications, as the self-lubricating properties help extend the bearing’s service life.

In summary, plain sliding bearings require external lubrication and are suitable for applications where lubrication can be provided, while self-lubricating bearings incorporate solid lubricants and operate without the need for regular maintenance. The choice between these two types depends on factors such as the application’s operating conditions, maintenance requirements, and budget considerations.

sliding bearing

Impact of Materials on Sliding Bearing Performance and Durability

The choice of materials used in sliding bearings significantly influences their performance, longevity, and suitability for specific applications. Different materials offer varying characteristics that affect factors such as friction, wear resistance, load capacity, and corrosion resistance. Here are some common materials and their effects:

  • Bronze Bearings: Bronze bearings, often made from bronze alloys, offer good load-carrying capacity and resistance to wear. They are suitable for applications with moderate to heavy loads and low to moderate speeds. Bronze bearings also have good heat dissipation properties.
  • Steel Bearings: Steel bearings, particularly those made from stainless steel, provide excellent corrosion resistance and are suitable for applications exposed to harsh environments or moisture. Steel bearings are often used in marine and food processing industries.
  • Polymer Bearings: Polymer bearings, such as those made from materials like PTFE (polytetrafluoroethylene) or nylon, offer low friction and self-lubricating properties. They are suitable for applications where minimizing friction and wear is critical.
  • Composite Bearings: Composite bearings combine different materials to achieve specific performance characteristics. For instance, they might feature a polymer matrix with embedded reinforcing fibers for improved load capacity and wear resistance.
  • Graphite Bearings: Bearings with graphite as a lubricating element can operate without additional lubrication in certain conditions, reducing maintenance needs and offering self-lubricating properties.

The selection of materials should consider factors such as the application’s operating conditions, load requirements, speed, temperature, and the presence of corrosive substances. The right material choice ensures optimal performance, durability, and minimal maintenance for sliding bearings.

sliding bearing

Impact of Proper Lubrication on Sliding Bearings

Proper lubrication plays a critical role in the performance and longevity of sliding bearings. Here’s how it affects their operation:

  • Reduced Friction and Wear: Lubrication forms a thin film between the sliding surfaces of the bearing, reducing direct metal-to-metal contact. This minimizes friction and wear, which can significantly extend the bearing’s lifespan.
  • Heat Dissipation: Lubricants help dissipate heat generated during operation by carrying away excess heat from the friction zones. This prevents overheating and potential damage to the bearing and surrounding components.
  • Corrosion Prevention: Lubricants provide a protective barrier against moisture and corrosive substances, preventing the formation of rust and corrosion on the bearing surfaces.
  • Sealing Effect: Proper lubrication can help create a sealing effect that prevents contaminants from entering the bearing, maintaining a clean and efficient operating environment.
  • Noise and Vibration Reduction: Adequate lubrication helps dampen noise and reduce vibration caused by friction between bearing surfaces. This contributes to quieter and smoother operation.
  • Enhanced Load Distribution: Lubrication ensures even load distribution across the bearing surfaces, preventing localized wear and extending the bearing’s overall life.
  • Stability and Performance: Proper lubrication maintains consistent performance and stability by minimizing variations in friction and reducing the risk of sudden failures.
  • Seizure Prevention: Lubricants prevent sliding surfaces from seizing or sticking together, even during periods of prolonged inactivity.
  • Optimized Efficiency: Well-lubricated bearings experience less energy loss due to friction, resulting in improved overall efficiency of the machinery.

Choosing the right lubricant type, viscosity, and lubrication interval is crucial to ensuring the optimal performance and durability of sliding bearings. Regular maintenance and monitoring of lubrication levels are essential to prevent issues and extend the bearing’s service life.

China supplier Plastic Shoulder Bushing PTFE Inserts Flanged PTFE Sealing Sleeve PTFE Sliding Cum Spherical Bearings   with Hot sellingChina supplier Plastic Shoulder Bushing PTFE Inserts Flanged PTFE Sealing Sleeve PTFE Sliding Cum Spherical Bearings   with Hot selling
editor by CX 2024-02-16