POM Bearings
POM Bearings
Say goodbye to the hassle of frequent lubrication maintenance. Our self-lubricating technology ensures smooth operation and reduces wear and tear, extending the lifespan of your equipment. Experience uninterrupted productivity and cost savings as you bid farewell to the need for messy lubricants and time-consuming upkeep.
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POM Bearings
POM Bearings Materials， Constructed with a steel foundation, POM bearings incorporate a bonded sintered bronze intermediary, upon which a POM top stratum is subsequently applied. This middle tier of bronze facilitates the dissipation of heat and fortifies the bond between the steel support and the sliding layer.
To enhance corrosion resistance, the steel base is coated with copper or tin. The upper POM layer is designed with indentations to capture and hold lubricating grease.
Plain bearing POM Bearing, Application Scope: Suitable for applications involving rotational and oscillating movements.
Extended Maintenance Intervals: Owing to their design, these bearings feature longer intervals before re-lubrication is required.
Water Resistance: POM bearings do not absorb moisture, ensuring reliable operation even in damp environments.
Damping Capabilities: They exhibit superior performance with excellent vibration damping behavior.
Edge Load Resistance: They have a low sensitivity to edge loading, which is a crucial attribute for applications bearing high loads.
Industry Suitability: Particularly appropriate for the automotive, machinery manufacturing, and agricultural industries, as well as any applications where a continuous supply of lubricant cannot be guaranteed.
These features make POM bearings an ideal choice for a variety of industrial applications, especially in environments where maintaining a consistent supply of lubricant is challenging. If you need more information on POM bearings or have other related queries, please feel free to ask.
POM Bearing Overview: Acetal bearings, commonly referred to as POM bearings, are a specialized category of self-lubricating bearings designed for scenarios demanding minimal friction and the elimination of regular maintenance. Here’s a concise summary of their construction and key characteristics:
Steel Core: The foundational element of a POM bearing is its steel base, which ensures necessary strength and support for the bearing’s operational loads.
Sintered Bronze Interlayer: Adhering to the steel is a sintered bronze coating. Sintering is a metallurgical technique where metal powder is heated without reaching the melting point, allowing the particles to chemically bond and form a cohesive, porous network.
Solid Lubricant Integration: Into the sintered bronze’s pores, a solid lubricant such as PTFE or graphite is introduced, endowing the bearing with self-lubricating features.
POM Bearing Key Characteristics:
Friction Minimization: POM bearings are engineered to possess a low friction coefficient, conducive to seamless operation. Durability: The fusion of sintered bronze with solid lubricant augments the bearing’s resistance to wear. Maintenance Minimization: The inherent self-lubrication negates the need for recurrent manual lubrication, making these bearings ideal for hard-to-access applications or where maintenance is impractical. Corrosion Resistant: The materials selected for POM bearings are inherently resistant to corrosion, broadening their applicability across diverse settings. Typical Uses: POM bearings have broad utility, finding roles in automotive parts, mechanical assemblies, farming machinery, and other domains where conventional ball or roller bearings may be unsuitable due to spatial restrictions, environmental factors, or a preference for a maintenance-free component.
Considerations: Despite their advantages, POM bearings do have constraints; they are not recommended for high-heat scenarios or extremely heavy load conditions.
For inquiries or more detailed information on POM bearings for specific uses, feel free to reach out!
Our selection of acetal-lined POM wrapped bearings is designed for use in applications involving rotary and oscillatory motions.
Specification overview of POM bearings
| Specification overview | |
|---|---|
| Properties | POM BEARINGS |
| Max. load (Dyn/stat), N/mm2 | 140 / 250 |
| Max. sliding speed m/s | 2.5 |
| Max. PV value N/mm2 x m/s | 2.8 |
| Temperature range, oC | -400 / +130 |
| Shaft tolerance | f7 – h8 |
| Housing tolerance | H7 |
| Shaft roughness | Ra ≤ 0.4 |
| Shaft hardness | > 200 HB |
The SF-2 POM bearing is a type of self-lubricating bearing that possesses the following features and applications:
Material Composition: SF-2 pom bearings are typically made from a carbon steel base, an intermediate layer of sintered spherical bronze powder, and a surface layer of rolled modified polyoxymethylene (POM), which includes oil storage pits to enhance its self-lubricating properties.
Application Areas: SF-2 bearings are suitable for medium-load, low-speed conditions at normal temperatures and can replace traditional copper bushings to reduce costs and extend service life. They are widely used in various fields including automotive chassis, forging machine tools, metallurgical and mining machinery, construction machinery, hydropower, and the steel industry.
Product Parameters: SF-2 pom bearings have clear product parameters, including maximum bearing pressure, maximum linear velocity, highest PV value, friction coefficient, and the operating temperature range.
Maintenance and Lubrication: SF-2 pom bearings can operate for extended periods under marginal lubrication conditions without the need for oiling. Under completely oil-free lubrication conditions, their friction performance and permissible PV value are lower, so oil storage pits are usually rolled out on the plastic surface, and lithium-based grease or silicone grease is applied during assembly.
Wear Characteristics: SF-2 pom bearing materials exhibit a unique wear pattern that allows for extremely minimal wear during the initial stages. Re-oiling during this phase can prevent significant wear, thus greatly extending the life of the bearing.
Product Advantages: The advantage of SF-2 pom bush bearings is the longer intervals between required oiling compared to other materials, especially metals, with intervals approximately five times longer.
Dimensions and Tolerances: SF-2 pom bush bearings come with detailed tolerance dimensions to fit the sliding parts of different machinery, such as printing machines, lifts, textile machines, tobacco machines, gym equipment, hydraulic carriers, micro motors, solenoid valves, and more.
Product Series: In addition to the standard SF-2 sleeve bearings, there are improved models based on SF-2 pom, such as SF-2X composite bearing and SF-2Y pom bushes, which perform similarly to SF-2 sleeve bearing but differ in surface treatment or material characteristics.
Due to their excellent self-lubricating properties, cost-efficiency, and wide range of applications, SF-2 POM bearings have become a popular choice in the industrial sector.
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