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Oilless Flanged Bushing

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Graphite flange bushings (also known as flange bearings) are used whenever support is needed for a shaft that runs perpendicular to the bearing’s mounting surface. With this support, we can avoid problems with high speeds and heavy loads that cause shafts to flex, vibrate, or otherwise move. Dimensions on these bushings can vary; they can be manufactured in a variety of lengths, diameters, and thicknesses.

Our Oilless Bushing has been developed for high load, low-speed applications and is made of rotational cast high-strength bronze using a specially formed graphite plug as a lubricant.

  • Ultra-low friction
  • Extended machinery lifespan
  • Reduced wear and tear
  • Minimal maintenance required
  • Optimal performance even in extreme conditions

Description

Unbelievable Oilless Flanged Bushing Secrets Revealed!

Say goodbye to costly downtime and frustrating maintenance. Our Oilless Flanged Bushing is engineered to perfection, reducing friction to a bare minimum. With its precision design, it ensures your machinery operates seamlessly, saving you time and money.

oilless flanged bushing, LG2 Bronze Graphite Bushings

Introduction to Oilless Flanged Bushings

Oilless flanged bushings, also known as plain bearings, are cylindrical devices designed to reduce friction and wear between moving parts in various machinery and equipment. Unlike traditional ball bearings that require lubrication, oilless flanged bushings are self-lubricating, making them ideal for applications where maintenance and frequent lubrication are impractical or impossible.

Significant cost savings in terms of maintenance, replacement, and reduced downtime compared to traditional self-lubricating products.

Our oil-free flanged bushings are available in various standard configurations, including cylindrical oilless bushings, flanged oilless bushings, thrust washers, and slide plates. Moreover, custom solutions can be fabricated to meet specific customer requirements. Whether you need non-standard sizes or special materials, these bushings can be tailored to your exact specifications.

Oilless flanged bushings are versatile components used in a wide range of industries, including:

Automotive Industry

In the automotive sector, oilless flanged bushings are employed in suspension systems, steering columns, and gearboxes, enhancing vehicle performance and safety.

Aerospace Industry

The aerospace industry relies on oilless flanged bushings for their lightweight and high-performance characteristics. They are used in aircraft landing gear, control systems, and engine components.

Manufacturing Sector

Manufacturing machinery, such as conveyor belts, injection molding machines, and robotics, benefit from the precision and reliability of oilless flanged bushings.

Flanged Gunmetal bronze bushing, oilless flanged bushing
flange graphite plugged bronze bushing, oilless flanged bushing

Advantages of Using Oilless Flanged Bushings

  • Maintenance-Free: Oilless flanged bushings require no external lubrication, reducing maintenance costs and downtime.
  • Self-lubricating: The built-in lubrication layer ensures consistent performance and extends the lifespan of the bushing.
  • Noise Reduction: Oilless flanged bushings operate quietly, making them suitable for noise-sensitive environments.
  • High Load Capacity: Certain types of oilless flanged bushings can withstand heavy loads, making them ideal for industrial applications.
  • Resistance to Corrosion: Bronze and graphite bushings are resistant to corrosion, ensuring longevity even in harsh conditions.

Oilless Bushing Flanged Bearing – Elevate Your Productivity

When you choose our Oilless Flanged Bushing, you’re not just buying a product; you’re investing in your business’s success. Experience increased productivity and efficiency, leading to higher profits. Don’t let friction hold you back; choose excellence today.

Oilless flanged bushing, graphite dry bushing

Flange Bronze Bushing Characteristics

Exceptional Performance under High Load, Low-Speed Operation

Oilless Flanged Bushings excel in applications where heavy loads and low speeds are prevalent. What sets them apart is their ability to perform admirably even without the need for external lubrication. This makes them a cost-effective solution for industries seeking reliable, low-maintenance bearings.

Excellent Wear Resistance

In scenarios where traditional lubrication methods struggle to create an oil film due to reciprocating, oscillating motions, or frequent intermittent operations, bronze Flanged Bushings shine. Their impressive wear resistance ensures longevity and reliability even in challenging conditions.

Remarkable Corrosion and Chemical Resistance

These bushings exhibit remarkable resistance to corrosion and chemical attacks. They can withstand exposure to water and caustic chemicals without compromising their performance, making them ideal for diverse environments.

Maintenance-Free and Cost-Efficient

Composition Of Oilless Flanged Bushing

Outer Sleeve: This is the outermost layer of the bushing, which provides structural support and stability when the bushing is installed. It often includes a flange for easy mounting.

Lubrication Layer: Beneath the outer sleeve lies a specially formulated lubrication layer. This layer can be made of various materials, including bronze, graphite, or plastic, depending on the specific requirements of the application.

Inner Shaft: The inner shaft, also known as the journal, is the part of the bushing that comes into direct contact with the rotating or sliding shaft of the machinery. It is precisely machined to minimize friction and wear.

Round Flanged Graphite Bushing, oilless flanged bushing
Flanged Graphite Dry Bushing flange cast bronze bushing with graphite

Types of Oil-free Flanged Bushings

Oilless flanged bushings come in various types to suit different applications. The three most common types are:

  1. Bronze bushings are known for their excellent load-bearing capacity and resistance to corrosion. They are often used in heavy-duty applications where high strength and durability are essential.
  2. Flange Graphite bronze bushings are valued for their self-lubricating properties and ability to operate in high-temperature environments. They are commonly found in industrial ovens, kilns, and conveyor systems.
  3. Plastic bushings are lightweight, cost-effective, and suitable for applications where low friction is required. They find use in the automotive industry and household appliances.

Oilless Flanged Bushing: Your Solution for High-Performance Bearings

oilless bushingReasons for Selecting Bronze Flange Bushing Products

  • Total Self-Lubricating: No Oil or Grease Required
    The self-lubricating properties of Oilless Flanged Bushings eliminate the need for external oiling or greasing. This is particularly advantageous in situations where traditional lubrication methods are impractical or expensive.
  • Excellent Wear Resistance
    These bushings offer exceptional wear resistance, making them suitable for heavy loads, low velocities, reciprocating, oscillating, and intermittent motions, where oil film formation is challenging.
  • Low Coefficient of Friction
    With a typical friction coefficient ranging from 0.04 to 0.2, Oilless Flanged Bushings minimize friction, leading to improved efficiency and reduced wear.
  • Wide Operating Temperature Ranges
    They can perform reliably in extreme temperature conditions, from -415°F to 1,100°F, ensuring consistent performance in diverse industrial settings.
  • Corrosion and Chemical Resistance
    Oilless Flanged Bushings are impervious to water and caustic chemicals, making them highly durable in harsh environments.
  • Designed to Exceed Your Requirements
    These bushings are precision-engineered with close tolerances, ensuring high-quality, reliable performance.
  • Cost-Competitive
    The extended service life of Oilless Flanged Bushings reduces maintenance, replacement, and downtime costs compared to similar self-lubricating products, making them a cost-effective choice.

Technical Data

Bronze materialCuZn25Al6Fe3Mn3

+SL2

CuSn5Pb5Zn5

+SL2

CuAl10Fe5Ni5

+SL2

CuSn12

+SL2

Cu%Rest858088
Sn%512
Pb%5
Zn%255
Al%610
Ni%5
Fe%35
Mn%3
Density8.2 g/cm38.8 g/cm38.5 g/cm38.8 g/cm3
Hardness>HB210>HB70>HB150>HB80
Max. Load Pressure100 N/mm240 N/mm250 N/mm245 N/mm2
Max. Linear Speed0.5 m/s(dry)0.4 m/s(dry)0.25 m/s(dry)0.5 m/s(dry)
Max. PV1.65 N/mm* m/s1.00 N/mm* m/s1.25 N/mm* m/s1.20 N/mm* m/s
Tensile Strength>750 N/mm2>200 N/mm2>500 N/mm2>360 N/mm2
Elongation>12 %>15 %>10 %>8 %
Temperature Limit-40 ~ +300 oC-40 ~ +250 oC-40 ~ +400 oC-40 ~ +300 oC

Products Standard: ISO 4379 (replaces DIN 1850)

Solid Lubricants

CodeMaterialFeaturesApplication
SL2Graphite compositeLow friction

Chemical resistant

Low cost

Temperature limit 400oC

Widely used for machinery
SL4PTFE+MoS2 composite waterWater contacting lubricating

Longer life

Temperature limit 300oC

(Sea) Water lubricating
Technical Datas
TypeJDB-1JDB-2JDB-3JDB-4JDB-5
Base materialCuZn24Al6CuSn6Zn6Pb3CuSn6Zn6Pb3HT-250GCr15
Hardness HBHB>210HB>90HB>80HB>160HRC>55
Friction coef(μ)<0.16<0.15<0.14<0.17<0.17
Temp limit300℃350℃300℃400℃350℃
Max static load100 N/mm260 N/mm270 N/mm270 N/mm2250 N/mm2
Max dynamic load m/min15 N/mm215 N/mm220 N/mm210 N/mm270 N/mm2
Sliding velocity limitDry 0.40 m/s0.2 m/s0.2 m/sDry 0.15 m/sDry 0.15 m/s
Oil 0.25 m/sOil 0.25 m/s
Oil 0.50 m/s
PV limit3.8 N/mm2·m/s0.5 N/mm2·m/s0.6 N/mm2·m/s0.8 N/mm2·m/s0.8 N/mm2·m/s


Self-lubricating bearings with different metal materials

JDB-1 solid lubricant embedded bushing is a new type made from strong brass and homogeneously embedded with solid lubricant in its body. It breaks through the limit of general bearing whose lubrication depends on an oil film. So it is suitable for high temperatures. heavy duty, anti-corrosion, or where it is hard to be introduced. Its performance doubles both on hardneswear wears friction. It is now widely applied in successive casting machines, steel rollers in metallography, mineral machine, ships, steam turbine, hydraulic turbines, and injection molding machines for plastics.

Suitable for low load position, wear performance worsens greatly when under middle or high load Can be applied in furnace door linage, furnace, conveyor, tool machines, light industries, etc.

Suitable for low load position wear performance worsens when under middle or high load. The mating layer is the same as JDB-2 so that more cost-saving than JDB-2 whereas compression strength increases and is weldable. Most suitable for a dry position in the construction, metallurgical machines, conveyor machines, etc.

Very good performance when under low load. Not suitable for middle and high load. Atypical cost-saving material. Can substitute JDB-4 to be applied in the position without high requirements such as die guider, plastic injection machines, etc.

Can be used under low, middle, and high loads. Due to its superb high hardness, when under high load, it over-performs another JDB-5 type. Not suitable for water. Acid, alkali circumstances Most suitable for the supporting position of hoisting machine, e. g. bulldozer supporter, hoister supporter, reeling machine supporter, etc.

bronze flanged bushing size

Flanged Bronze Bushing Size Chart

d₁  2530405060  65658080100100
d₂  3540556575  8080100100120120
d345506575859090110110130130
r1020202020  202020202020
r111222222222
r222222  222233
l3710101010101010101010
l23340607070  701109013090130
l1  405070808080120100140100140

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