Grooved Bushing – Casting Bronze Bushing With Grease

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A grooved bushing is a mechanical component used to support a rotating shaft and reduce friction between the shaft and the surrounding structure. It is usually made from a cast bronze bushing, cylindrical in shape, with a series of grooves or ridges on its exterior or inside surface.

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What Is A Grooved Bushing?

A grooved bushing is a type of cylindrical bearing that has a groove or channel on its outer surface. This groove can be circular or helical and is designed to improve the performance of the bearing by providing lubrication and reducing friction.

The grooves in a grooved bushing act as a reservoir for lubricant, which is held in place by capillary action. As the bearing rotates, the lubricant is released from the groove and helps to reduce friction between the bearing and the shaft it’s mounted on. This makes the bearing run smoother and last longer.

Grooved bushings are commonly used in industrial applications such as machinery, conveyor systems, and automotive components. They can be made from a variety of materials, including bronze, steel, and plastic, depending on the application requirements.

Specialization in Groove Cutting

As specialists in the field, we take pride in our expertise in cutting lubrication grooves. Our proficiency extends to various patterns, with a focus on delivering optimal performance for our clients. Whether it’s the intricate double spiral grooved bronze bushings or the versatile Straight and circular Groove, our commitment to precision sets us apart.

Grooved Bushing

Variety of Groove Patterns

The diversity in groove patterns is a testament to our commitment to customization. From the classic figure eight to the innovative double loop, we offer a spectrum of choices. Each pattern serves a unique purpose, allowing us to meet the specific requirements of different applications.

Grooved Bushing types

Application to Grooved Casting Bronze Bushing

Grooved bushings are used in a wide range of industrial applications, including automotive, aerospace, and heavy machinery. They are designed to support rotating shafts, reduce friction and increase the life of machinery.

Automotive Bushing

Automotive Industry

In the automotive industry, grooved casting bronze bushing is commonly used in engines, transmissions, and suspension systems. They help to reduce friction between moving parts, thereby increasing performance and efficiency. They also help to absorb shocks and vibrations, thereby reducing wear on machinery.

aerospace bearing

Aerospace Industry

In the aerospace industry, grooved bronze bushings are used in aircraft engines and landing gear systems. They provide reliable support for rotating shafts and reduce friction, which is essential to ensure safe and efficient flight operations.

grooved bushing used in excavator

Excavator Bushing

when In the heavy machinery industry, grooved bushings are used in mining equipment, construction machinery, and agricultural equipment. They help to reduce friction and wear between moving parts, thereby increasing the life and reliability of machinery.

The Manufacturing Process For Grooved Bushings

grooved bushings can be manufactured using a variety of processes, including casting, machining, and injection molding. The manufacturing process used will depend on the material, size, and application requirements of the bushing.

  1. The first step is to select the appropriate material for the bushing based on the application requirements. Common materials for bushings include bronze, brass, and stainless steel.
  2. Then turned on a lathe to create the outer diameter of the bushing. after turning the outside diameter, the inside diameter is created by boring the center of the bushing. Boring is the process of enlarging a hole that has already been drilled or cast.
  3. finally, grooves are cut into the outer surface of the bushing.
  4. After the grooves have been cut, the bushing is deburred to remove any sharp edges or burrs that may have been created during the manufacturing process.
  5. Check slotted bushings to ensure they are to the required specification
Grooved Bushings


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Casting Bronze Bushing With Groove

Grooved Bronze Bushing – For All Your Component Needs

Types Of Casting Bronze Bushing With Groove

Several types of grooves can be found in casting bronze bushings, each with its specific purpose and design. Some common types of grooves found on cast bronze bushings include:

  • Straight Groove: This is the most basic type of groove and runs parallel to the length of the bushing. It helps to distribute the lubricant evenly along the length of the bushing.
  • Spiral Groove: This type of groove spirals around the circumference of the bushing, providing a continuous supply of lubricant to the bearing surface.
  • Diamond Groove: The diamond groove pattern consists of a series of intersecting grooves that form a diamond shape. This type of groove is used to improve the retention of lubricant and reduce friction in high-load applications.
  • Rectangular Groove: The rectangular groove is a series of parallel, rectangular-shaped grooves that provide multiple channels for lubricant distribution and retention.
  • Elliptical Groove: The elliptical groove is an oblong-shaped groove that provides a greater surface area for lubricant retention and distribution.

Standard Grooved Bushing & Custom Service

The Advantage Of Bronze Grooved Bushing

Bronze bushings with grooves offer several advantages over ordinary plain bushings, including:

  • Improved Lubrication: The grooves on the bushing’s surface act as a reservoir for lubricant, providing a constant supply of lubrication to the bearing surface. This results in reduced friction, less wear, and a longer lifespan for the grooved bushing.
  • Reduced Friction: The grooves on the bushing’s surface help to distribute the lubricant evenly across the bearing surface, reducing hotspots and areas of excessive wear. This results in smoother operation and reduced noise levels.
  • Higher Load Capacity: The grooves on the bushing’s surface provide additional bearing surface area, which can increase the load-carrying capacity of the bushing. This makes grooved bronze bushings suitable for high-load applications.
  • Improved Cooling: The grooves on the bushing’s surface also help to dissipate heat generated by friction, improving the cooling of the bushing and reducing the risk of overheating.
  • Reduced Maintenance: Grooved bronze bushings require less maintenance than ordinary bushings because they retain lubrication better, reducing the need for frequent lubrication.
Bronze Grooved Bushing

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Bronze Bushings may need to be grooved in certain situations to accommodate changes in the size or shape of the shaft that they are mounted on, or to allow for easier installation or removal. Some situations where bushings may need to be slotted include:

  • Shaft Misalignment: If the shaft that the bushing is mounted on is misaligned or has irregularities, the bushing may need to be slotted to ensure proper fit and alignment.
  • Diameter Changes: If the diameter of the shaft changes along its length, the bushing may need to be slotted to allow for a tighter fit on one end and a looser fit on the other.
  • Installation or Removal: If the bushing needs to be installed or removed from the shaft, slots can be cut into the bushing to allow for easier installation or removal.
  • Custom Applications: In some cases, bushings may need to be slotted to accommodate custom applications where a standard bushing may not be suitable.

Grooved Bushings – Align And Fit Your Mechanical Components

Self-lubricating bushes in various Method

Difference Between Embedded Solid Lubricants And Grooving Bushings

Lubrication Method

Adding solid lubricant involves inserting a solid lubricant material, such as graphite or molybdenum disulfide, into the pores or surface of the bushing. Greasing the groove involves filling the groove on the bushing’s surface with a liquid or semi-solid lubricant, such as grease or oil.

Lubricant Type

Solid lubricants are dry lubricants and work by forming a thin layer on the bushing’s surface, reducing friction between the bushing and the shaft. Grease, on the other hand, is a wet lubricant that works by coating the bushing and the shaft with a thick layer of lubricant.

Longevity of Lubrication

Solid lubricants are long-lasting and can provide lubrication for extended periods, even under high loads and temperatures. Grease, on the other hand, may need to be reapplied periodically to maintain adequate lubrication.


graphite solid lubricants are suitable for applications where the bushing operates at high temperatures, high loads, or in harsh environments. Grease is more commonly used in applications where moderate to low loads and temperatures are present.


Embedded Solid lubricants require minimal maintenance, while greased grooves may need to be cleaned and refilled periodically to maintain optimal lubrication.

High Load Self Lubricating Bearings

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