Oilless Bushing Sleeve Flange Size POM The professional manufacture & sale of oilless lubrication bearings.

POM Bearing Bushing

The Kx Oilless Bushing Sleeve with flange size and made from POM (Polyoxymethylene) is a self-lubricating component designed for superior performance in a range of industrial applications. POM, also known as acetal, is a highly durable and wear-resistant material that offers excellent mechanical properties and stability.

The flange design of this bushing sleeve provides additional support and stability, ensuring a secure fit within the housing. This not only enhances the load-bearing capacity but also contributes to the overall reliability and performance of the bushing.

The self-lubricating nature of POM material significantly reduces the need for external lubrication, simplifying maintenance and extending the service life of the bushing sleeve. This feature is particularly beneficial in applications where regular lubrication is difficult or impractical.

The Kx Oilless Bushing Sleeve is suitable for use in a wide range of machinery and equipment, including pumps, motors, and gearboxes. Its high-quality construction and materials ensure smooth and reliable operation, even under high loads and speeds.

In summary, the Kx Oilless Bushing Sleeve with flange size and made from POM is a robust and reliable component that offers exceptional performance and durability in various industrial settings. Its self-lubricating properties and flange design combine to provide optimal support, stability, and lubrication, making it an ideal choice for demanding applications.

A small amount of lubricant is required for these bushings (All greases or oils designed for lubricating plain bearings). POM bushings have good sliding properties and are suitable for rotary and rocking movements. They have a low coefficient of friction, low sensitivity to edge loading and good damping properties. They can be post-machined. They are low maintenance due to the long relubrication intervals.

This material is designed for semi-dry friction working conditions with limited lubrication. Regularly arranged circular depressions are formed on the sliding surface, which are filled with sufficient lubricant once during assembly. The sliding material consists of polyacetal anchored in porous bronze on a sintered steel substrate.

The KX bimetallic strip has a 0.25 mm thick layer of polyacetal over the bronze interlayer so that it can be machined if required. It has good conformability, hence its resistance to edge pressures, but is not suitable for dry work.

The coefficient of friction is low when initially lubricated with grease and increases thereafter. When the sliding life of the KX bimetallic belt is not sufficient with the basic lubricant supply, it can be increased by repeated relubrication. KX bimetallic belt products have excellent sliding properties.

The operating temperature range is from -40 to +110°C, short term up to +130°C.
The POM bushings are equivalent to the bushings marked PM...,PCM...M, PAP...P20, GLY.AB..., MX..., SF-2...,
Parameters
Inner diameter (mm)
14
Outer diameter (mm)
16
Width (mm)
15
Temperature range °C
-40..+250
Friction coefficient µ
0,04-0,12
Dynamic load N/mm2
120
Static load N/mm2
250
Permissible sliding speed m/s
2,0
Shaft tolerance
h7-h8
Tolerance of body
H7
Shaft surface roughness Ra µm
0-0,8
Shaft hardness HB
150-600

POM bushing size chart

METRIC BEARING POM BUSHES WITH OIL HOLES.pdf

View POM style composite bushing and self-lubricating bearings from bronzegleitlager.com

All sizes are in stock & ready for reliable shipment.

Cylindrical Pom Composite Self-Lubricating Bearing

The POM-based sleeve bearing, also called POM bushing, boundary lubricated bearing, oil-free bearing, dry bearing, POM bearing and POM coated dry sleeve. It has a similar material structure with dowels. The difference lies in the POM coated layer.
Yellow POM composite bushing is a standard item of our company. This type self-lubricating bearing has same material structure with other bushing.

1. POM 0.3~0.5mm.
2. Porous bronze 0.2~0.3mm.
3. Steel backing 0.4~2.2mm.
4. Copper plating 0.008mm.

• Environmental protection composite bushing multi-layer material without lead

• Custom 14*12*15 Composite POM Oilless POM Steel Split Bearing Bush

• Composite Steel Backed Bronze Self Lubricating PTFE Bushing Bearing with

POM SPLIT BUSH BEARING - POM TYPE

POM marginally lubricated bushings Characteristics

· Good load-bearing capacity and wear resistance
· Suitable for linear, oscillating and rotating movements
· Optimal performance at relatively high loads and low speeds
· Lead-free sockets can meet environmental protection requirements

Yellow pom composite self-lubricating bearing is widely used in the machine where lead-free is unacceptable, such as textile machinery, self-acting parts, car chassis, forging machine, metallurgy and so on.

RELATED POM SELF-LUBRICATING BEARING BUSHES

Yellow Pom composite self-lubricating Bearing Technical Date

Metal-Polymer Plain Bearings Grease Lubricated POM Bush

POM bush - Oil or grease lubricated bearings - Metric Size

• Marginally lubricated POM bushings for grease or oil lubricated applications
• Standard parts contain grease notches on the sliding layer; flat sliding layer available upon request
• Optimal performance under relatively high loads and low speeds
• Suitable for linear, oscillating and rotating movements
• Wide range of parts available from stock

Structure & Composition

• Metal-Polymer Composite Bushing Material
• Steel Back + Porous Bronze Sinter +
  POM with Lubrication Indents

Microsection

1.Sliding layer POM with or without lubricant indents for machining

2.Porous Bronze Sinter

3.Steel Back

Self-lubricating bearing POM bush Properties

Availability

Bearing forms available in standard dimensions

• Standard cylindrical POM bushing
• POM thrust washers
• POM strips are availabe
• Customzied POM bushing

Metric bearings and imperial bushings made to order: standard bushing forms in special dimensions, half-bushings, special shapes obtained by stamping, bearings with locating notches, lubricant holes and machined grooves, customized bushing designs

POM bushing Typical applications

• Agricultural equipment
• Off-highway, truck, and automotive
• Handling and lifting equipment
• Machine tool building industry
• Hydraulics
• Engineering and general applications

Beyond Grease: A Deep Dive into Oilless Bushings & Why Viiplus Leads the Way

Friction is the enemy of efficiency. In countless machines, from massive industrial equipment to intricate automotive components, the constant battle against wear and tear dictates performance, longevity, and maintenance costs. Traditionally, grease and oil have been the go-to solutions, but they come with their own set of challenges: frequent re-lubrication, potential contamination, environmental concerns, and limitations in extreme conditions.

Enter the world of oilless bushings, also known as self-lubricating bearings or sliding bearings. These innovative components offer a smarter way to manage friction, delivering reliable movement without the need for external lubrication.

At Viiplus (www.viiplus.com), we don't just supply these components; we engineer solutions. Leveraging deep expertise in metallurgy and tribology (the science of friction, wear, and lubrication), we've become a leading name in sliding bearing technology. But what exactly are oilless bushings, and why should they be on your radar? Let's dive deeper.

What Exactly Are Oilless Bushings? The Science of Self-Lubrication

Unlike traditional ball or roller bearings that rely on rolling elements and require constant lubrication films, oilless bushings operate on the principle of sliding motion. Their "magic" lies in their material composition and structure, designed to provide their own lubrication at the bearing surface. This can be achieved through several key technologies:

1. Solid Lubricants Embedded: Materials like graphite, MoS₂, or PTFE are embedded directly into the metallic matrix (often bronze) of the bushing. As the shaft rotates or slides, a minuscule amount of this solid lubricant is transferred to the mating surface, creating a low-friction film.

2. Porous Metal Structures: Sintered bronze or iron materials are created with microscopic pores. These pores are vacuum-impregnated with oil during manufacturing. In operation, slight heating causes the oil to expand and seep onto the bearing surface, providing lubrication. When it cools, the capillary action draws the oil back in, creating a closed-loop system.

3. Layered Composites: These often feature a strong backing (like steel), an intermediate sintered layer (like bronze), and a low-friction overlay (often PTFE-based). The PTFE layer provides the primary sliding surface, offering extremely low friction.

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Contrasting Logic: Oilless vs. Traditionally Lubricated Bearings

The Tangible Benefits: Why Make the Switch?

Choosing oilless bushings isn't just about eliminating grease guns. It's about unlocking significant operational advantages:

• Drastically Reduced Maintenance: This is the most obvious benefit. No re-greasing means less labor, less scheduled downtime, and simplified maintenance protocols. Imagine the savings across a factory floor!

• Enhanced Reliability: Lubricant starvation is a major cause of bearing failure. Self-lubricating bearings ensure consistent lubrication, leading to predictable performance and longer service life, especially in hard-to-reach locations.

• Superior Performance in Harsh Conditions: Oilless bushings excel where traditional lubricants fail:

  • High Temperatures: Certain types can operate at temperatures far exceeding the limits of conventional greases.

  • Low Temperatures: No grease means no stiffening or freezing issues.

  • Contaminated Environments: The absence of sticky grease reduces the ingress of dirt, dust, and debris.

  • Vacuum or Underwater: Ideal for applications where liquid lubricants are impractical or impossible.

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• Cost Savings (Total Cost of Ownership): While the initial purchase price might sometimes be higher, the TCO is often significantly lower due to savings on lubricants, labor, downtime, and potential component failure replacement.

• Environmental Friendliness: Eliminating oil and grease leakage prevents contamination of products, machinery, and the environment. Crucial for industries like food processing, pharmaceuticals, and textiles.

• Compact & Simplified Designs: Without the need for lubrication systems (nipples, lines, reservoirs), machine designs can be more compact and streamlined.

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Exploring Viiplus's Portfolio: Finding Your Solution

Viiplus offers a comprehensive range of self-lubricating bearings designed to meet diverse application needs. Understanding the different series helps in selection:

• JDB Series (Graphite Plugged Bronze): Excellent for high-load, low-speed applications, intermittent motion, and high temperatures. The graphite plugs provide continuous solid lubrication. Ideal for heavy machinery, molds, and hydraulic components.

• SF Series (PTFE-Based Composite): Typically metal-backed (SF-1: steel, SF-2: steel/bronze) with a PTFE-based lining. Offers very low friction, good wear resistance, and suitability for dry running or marginal lubrication. Common in automotive, office equipment, and hydraulics.

• JF Series (Bimetal Bushings): Combines a steel backing with a sintered bronze or lead-bronze lining. Good load capacity and fatigue strength. Often used with grease or oil but can operate marginally lubricated. Found in engines, chassis parts, and agricultural machinery.

• FB Series (Wrapped Bronze): Often made from bronze strip, sometimes with lubrication pockets or through-holes. A cost-effective solution for medium loads and speeds, typically requiring initial greasing but offering extended re-lubrication intervals.

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Quick Comparison Chart (General Guide):

(Note: This is a simplified guide. Always consult specific product data sheets or Viiplus experts for precise application requirements.)

Uncertain which material or type suits your project? Our Bushing Material Selection Guide is designed to help, or Contact Us for a Free Quote and Expert Advice.

Why Partner with Viiplus? Expertise Meets Quality

Choosing the right supplier is as critical as choosing the right bushing. Here’s why companies worldwide trust Viiplus:

• Deep Expertise: Our foundation in metallurgy and tribology, coupled with a talented R&D team, means we understand the science behind reliable movement. We don't just sell; we solve friction challenges.

• Uncompromising Quality: We employ advanced manufacturing techniques (including sand casting, centrifugal casting, metal casting, investment casting) and a rigorous quality management system, ensuring every bushing meets the highest standards.

• Comprehensive Range: From standard metric sizes in JDB, SF, JF, and FB series to custom solutions including cylindrical, flange, double flange bushings, wear plates, and guide rails – we have the portfolio to match your needs.

• Global Reach, Seamless Logistics: Based in China, we ship sliding bearings worldwide. Our professional team handles customs clearance efficiently, ensuring smooth, timely delivery with all necessary documentation.

• Customer-Centric Approach: We believe in ethical practices and building trust. We offer flexible production (single units to large series), competitive pricing, and  online support.

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