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Oilless Bearings services

Casting Bronze Bushing

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The benefits of oilless bronze bearings

Cast Bearing – Search Bushing Bronze At Viiplus

Cast bronze alloys have been used for centuries in a broad spectrum of bearing applications. Other bearing materials have been unable to match their versatility. Cast Bronze bearings are recommended for medium to heavy loads, impact, and temperatures. Made from U.S. Mill certified C93200 SAE 660 bearing bronze stock. This material is resistant to impact, wear, and corrosion, and has superb anti-friction properties. It also has excellent machinability, meaning a high-quality surface finish can be achieved. 

cast bronze bushing
low friction cast bronze bearing


Cast Bronze Sleeve Bearings’ Material

High-quality services – performance-based prices – simple solutions–flawless products. We offer an extensive range of cast bearing and excellent customer service. Get casting Bronze Sleeve Bearings。 Powerful and Easy to Use. To choose bearings material that suits your products. Explore the Best Info Now.

The C93200 (SAE 660) series of cast bronze sleeves and flanged bushings are made from an all-purpose leaded bronze alloy with excellent antifriction properties and machinability. These bushings exhibit exceptional wear resistance, durability, and shock-loading capabilities, allowing them to provide reliable performance across a long lifespan. Physical properties include:
35,000 psi minimum tensile strength
20,000 psi minimum yield strength
10% minimum elongation in 2″
Brinell Hardness (500 kg load): 65 typical
Machinability Rating: 70
Minimum Operating Temperature: -450°F
Maximum Operating Temperature: 500°F
P-Value Max 4,000
V Value Max 750
PV Value Max 75,000
Bushings & Bars offers the following C93200 (SAE 660) products:
Inch Sleeve Bushings
METRIC Sleeve Bushings
METRIC Flanged Bushings
The C87850 (ECO Bronze) series of cast bronze bushings provide an eco-friendly, lead-free alternative to the C93200 (SAE 600) leaded bronze series. ECO Bronze is a RoHS- and REACH-compliant alloy that has been tested through multiple independent laboratories and confirmed to be free of lead, arsenic, and bismuth. In addition to being environmentally safe and cost-effective, ECO bronze is proven to be equal to or better than traditional alloys in terms of quality and performance. Other beneficial properties of this material include:

Excellent machinability
Tolerant of high temperatures
Excellent impact and compressive strength
Resistant to dezincification and stress corrosion
100% recyclable
These properties make ECO Bronze cast bronze bushings and thrust washers perfect for meeting the strict safety and/or environmental regulations of the energy, marine, construction, medical, food, and beverage industries.

Mechanical properties of the ECO BRONZE C87850 series include:

65,000 psi tensile strength (minimum)
25,000 psi yield strength (minimum)
8% elongation in 2″ (minimum)
Brinell Hardness (500 kg load): 103 typical
Machinability Rating: 70
Minimum Operating Temperature: -400°F
Maximum Operating Temperature: 400°F
P Value Max 4,400
V Value Max 450
PV Value Max 100,000
Bushings & Bars offers the following C87850 (ECO Bronze) cast bronze products:

Sleeve Bushings
Flanged Bushings
Thrust Wash

C96900 series of cast bronze bushings are made from a continuous-cast, spinodal hardened alloy with high tensile strength and excellent machinability. This alloy exhibits excellent galling, corrosion, and wear resistance, allowing bushings and thrust washers to last longer and carry higher loads. ToughMet bushings and thrust washers provide performance advantages in a range of demanding industries, including:
Heavy equipment
Oil and gas
Drilling hardware
Mechanical properties of the ToughMet (C96900) series include:
110,000 psi tensile strength
105,000 psi yield strength
4% elongation
Rockwell C 32 typical
Machinability Rating: 8
Minimum Operating Temperature: -450°F
Maximum Operating Temperature: 550°F
P-Value Max 20,000
V Value Max 500
PV Value Max 275,000
The ToughMet series of bushings and thrust washers offer the highest PV rating in the Bushings & Bars catalog. Products include:
Sleeve Bushings
Flanged Bushings
Thrust Washers
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The benefits of oilless bronze bearings

The Applications of casting bronze bushings

Heavy-duty equipment: The hardness and impact resistance of casting bronze bushings make them ideal for use in a range of construction, agricultural, and industrial equipment requiring high reliability in harsh environments.
Hydraulic machinery: With its heat resistance and exceptional mechanical properties, bronze cast bearing are perfect for supporting components in the cylinders and motors of hydraulic machinery.
Power transmission components: Casting bronze bushings help improve the efficiency and performance of critical components used in power transmission applications:
Aerospace systems: Cast bearing help reduce weight and enhance the performance of mechanical moving parts in various aircraft systems.
Manufacturing tools and equipment: The bronze alloys used in cast bronze bushings give them the strength and wear-resistance to support components in stamping dies, presses, and other tools and equipment used in the manufacturing industry.

flange cast bronze bushing with groove
cast sleeve bronze bushing


Cast Bronze Bushing | CNC Processing

As friction-reducing components, it is essential that bushings are constructed from wear-resistant materials that provide good sliding properties. While bushings can be fabricated from a variety of plastics and metals, bronze provides several distinct advantages over alternative options in heavy-load applications. As an inherently moldable and easy-to-machine material, bronze is well-suited for achieving a range of bushing designs.

The bronze alloy used in cast bronze bushings undergoes a continuous or centrifugal casting process, giving the metal a finer grain structure and improved mechanical properties. The bronze alloy cast bar is then cut and processed into the finished bushing using a computer numerical control (CNC) lathe or other precision machining method. Casting bronze bushings exhibit excellent structural strength, durability, and resistance to compressive forces, making them well-suited for harsh, high-wear applications. They can also withstand high temperatures without losing their strength.

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Cast bearing Sleeve Bushings | Factory Price

cnc processing, cast bronze bushing


Why Do Bearings Need Grooves?

Because the copper sleeve has the advantages of large bearing capacity, small radial size, and low price, most of the copper sleeves are used as sliding bearings in the equipment with low speed and heavy load, and harsh mechanical working environment. In the main transmission system of the tire vulcanizing machine, all mechanical transmissions from the worm gear reducer use copper sleeves as sliding bearings. However, the copper sleeve has a large frictional resistance and is easy to wear and fail. Therefore, in addition to ensuring the quality of the material selection and processing, good lubrication is essential when using the copper sleeve. To ensure good lubrication, in addition to selecting a good lubricant, there must be a suitable oil groove in order to store the lubricating grease and evenly spread the entire lubricating surface, so as to form an oil film with a certain bearing capacity and reduce friction and mechanical wear. Therefore, the role of the oil tank is particularly important.

Cast Sleeve Bronze Bushing With Groove

Your Partner for Standard and special bearings 

processing cast bronze bearing

A bushing, also known as a plain bearing, is designed to reduce friction between two surfaces as they slide against one another. In machines and equipment with rotating or sliding shafts, bushings are used to enhance overall efficiency and longevity while reducing noise and vibration. They generally come in the following two styles:

Sleeve bushings. Sleeve bushings are cylindrical in shape, featuring straight inside and outside diameters.
Flanged bushings. Flanged bushings feature a flange that extends radially outward from one end. The purpose of the flange is to act as a thrust face at one end of the bushing also preventing any axial movement.

The benefits of oilless bronze bearings

Professional Bronze Bushing With Grooves

We are specialists in cutting lubrication grooves in virtually any pattern. Such as common groove patterns available are figure eight, double figure eight, loop, double loop, circular, wick or straight.Any of these grooves can be contained within the length of the part or breaking out the ends. Call us for assistance in determining which pattern is most appropriate for your application. There are industry standard groove patterns that are available for different applications.

casting bronze bushing
casting bronze bushings


Grooved Bronze Sleeve Bearings | China Supplier

Machined casting bronze bearings offer technically and economically favorable bearings solutions. It is with high load capability, low weight, and good corrosion resistance. Viiplus can offer different types of bronze alloys according to the required lifetime, service…etc. The tolerance is much tighter than wrapped bronze bushes. Please contact us to learn more about how our bearings can benefit your business.

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grease the groove