Wrapped bushing, Bronze CuSn8, DIN 1494 / ISO 3547, Low-maintenance

Phosphor Bronze Bearing Bushing: Premium Wrapped Design, Crafted from Bronze CuSn8, Compliant with DIN 1494 / ISO 3547 Standards. Proudly Manufactured in China, Offering Top-Quality Products at Competitive Prices. Get Your Quote Today!

Bronze Wrapped Plain Bearings, phosphor bronze bearings, Bronze bushings belong to the group of solid bushings or solid bearings. They consist of a single material or alloy. Similar to the solid bronze bushings.

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Phosphor bronze bushings are known for their excellent wear resistance, low friction, and high fatigue strength, making them ideal for various applications across industries. Custom-size wrapped and cast phosphor bronze bushings cater to specific requirements, ensuring optimal performance and longevity. In this article, we will discuss the differences between wrapped and cast phosphor bronze bushings, their advantages, and key applications. Additionally, a table will provide a side-by-side comparison of these two bushing types.

Custom-Size Wrapped Phosphor Bronze Bushings

Wrapped phosphor bronze bushings are manufactured by wrapping a phosphor bronze alloy strip around a mandrel and then forming it into the desired shape. These bushings are typically thin-walled and feature a diamond-shaped lubrication pocket or a straight groove pattern to retain lubricants and minimize friction.

Advantages of Wrapped Phosphor Bronze Bushings:

1. Cost-effective: Wrapped phosphor bronze bushings are generally more affordable than cast counterparts due to the simplified manufacturing process.
2. Lightweight: The thin walls of wrapped bushings make them relatively lightweight, which can be advantageous in certain applications.
3. Versatility: Wrapped bushings can be easily customized to fit various shaft diameters, lengths, and shapes, allowing for tailored solutions to specific requirements.

Custom-Size Cast Phosphor Bronze Bushings

Cast phosphor bronze bushings are created by pouring molten phosphor bronze alloy into a mold, which is then allowed to solidify. Once cooled, the bushing is removed from the mold and may undergo additional machining or finishing processes as needed.

Advantages of Cast Phosphor Bronze Bushings:

1. Enhanced durability: Cast bushings tend to be more robust and better suited for heavy-duty applications due to their solid construction.
2. Superior load capacity: The solid construction of cast bushings allows them to handle higher loads compared to wrapped bushings.
3. Greater customization: Cast bushings can be tailored to fit complex geometries and larger sizes, offering more versatility in design and application.

Comparison Table: Wrapped vs. Cast Phosphor Bronze Bushings

Feature	Wrapped Phosphor Bronze Bushings	Cast Phosphor Bronze Bushings
Manufacturing Process	Wrapped around a mandrel	Cast in a mold
Wall Thickness	Thin-walled	Solid construction
Lubrication Retention	Diamond or straight groove	Surface machining
Cost	More affordable	More expensive
Weight	Lightweight	Heavier
Load Capacity	Lower	Higher
Customization Possibility	High	High
Best Suited Applications	Light to medium-duty	Medium to heavy-duty

Key Applications of Custom-Size Phosphor Bronze Bushings

1. Automotive: Phosphor bronze bushings are commonly used in automotive components such as transmissions, pumps, and steering assemblies.
2. Industrial machinery: Due to their wear resistance and high fatigue strength, phosphor bronze bushings are used in various machines, including printing presses, textile equipment, and packaging machinery.
3. Marine equipment: The corrosion resistance of phosphor bronze makes it suitable for use in marine applications such as propeller shaft bearings, rudder bearings, and winch components.
4. Electrical equipment: Phosphor bronze bushings are used in electrical switches, connectors, and other electrical components due to their excellent electrical conductivity.

Conclusion

Custom-size wrapped and cast phosphor bronze bushings offer unique advantages and can be tailored to fit specific requirements, making them an ideal choice for various applications.

PROPERTIES

Economic solution for bronze bearing application due to a thin wall thickness. High load capability and good stability with low abrasion. Suitable for rough working conditions, and good corrosion resistance.

WRAPPED BRONZE BUSHING MATERIALS

• Support materialCuSn8P (DIN 17662)
• alternative CuSn6P available

A wrapped bronze bushing is a kind of bushing wrapped by a bronze strip. This type of bronze bearing is made of a particular formulation with high specific gravity and its surface can be incorporated with spherical or diamond-shaped indentations or oil grooves based on customers’ requirements. It is a high load capacity and long life. Compared with traditional cast bronze bushing, it is cheaper and more compact.  a wrapped bronze bushing is widely used in hoisting machines, construction machines, automobiles, trucks, machine tools, mineral equipment and etc.

Wrapped bronze bearing & flanged bushing with lubrication indents ISO 3547 and DIN 1494

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Wrapped Bronze is made completely of bronze, CuSn8. The bushings are produced from strips that are then wrapped and calibrated. The working surface is machined and provided with oil holes all over its sliding surface. These indentations serve as lubricant reservoirs, where the lubricant is initially filled and progressively released during operation.

wrapped bushing, Bronze CuSn8P, DIN 1494 / ISO 3547, Low-maintenance

Application recommendations:

Bronze bushing sleeve

Shaft tolerance e7 – f8

Housing tolerance H7

Shaft roughness Ra, µm 0,4 .. 0,8

Shaft hardness, HB 150 – 400

Viiplus wrapped bronze bushings material

Viiplus wrapped bronze bushings are made entirely of bronze, CuSn8. The bushings are produced from strips which are then wrapped and calibrated.

Wrapped Bronze bushings offer many features and advantages

• insensitive to dirty environments
• resistant to shock loads and vibrations at slow speeds
• good resistance to corrosive conditions

Wrapped Bronze cylindrical bushings are made completely of bronze. They are particularly suitable for applications that must be re-lubricated due to dirty environments. The sliding surface is provided with lubrication pockets which contribute to the enhanced lubrication performance.VIIPLUS offers a full range of both plain and flanged cylindrical bushings in accordance with ISO 3547 and DIN 1494

Bushing Sleeve Lubrication Bushings

Lubrication improves the sliding properties, reduces wear, and prevents corrosion since the metal surfaces of bushing and shaft are separated from each other. VIIPLUS Wrapped Bronze bushings are intended to be lubricated with grease or oil. All commonly used greases can be used. Seals are recommended when the bearing is to be used in an aggressive environment.

Long service intervals under severe operating circumstances.

Wrapped bronze bearings are ideal for applications where there are high levels of contamination. Their running surface is provided with diamond-shaped lubrication pockets or a hole pattern. The lubrication pockets must be filled with grease when the bearing is installed. The wrapped bronze bearings are produced according to the ISO 3547.

Bushing Sleeve Maintenance， wrapped bushing, Bronze CuSn8P, DIN 1494 / ISO 3547, Low-maintenance

It is a low-maintenance bushing material. An initial greasing during installation is necessary, after that periodic greasing with oil or grease is mandatory. The diamond pockets are an excellent lubrication depot and keep maintenance to a minimum.

Bronze rolling bearing, tin bronze alloy CuSn8 as the material, the surface rolling rhombic oil hole, since the role of storage grease, it has good fatigue strength and load-carrying capacity, corrosion resistance, wear resistance. Widely used in agricultural machinery, construction machinery, construction machinery, and other high-load low-speed occasions.

The bearings are wrapped from a cold-formed homogenous bronze (CuSn8) with exceptional material properties. The standard sizes are formed with diamond-shaped lubrication indents on the bearing surface. The indents serve as lubricant reservoirs to rapidly build up a lubrication film at the start of the movement and thereafter reduce the running friction. These materials are suitable for construction and agricultural machinery applications.

The bearing is wrapped in a cold formable homogenous bronze, which will obtain exceptional material properties. The standard bearing is fitted with diamond-shaped lubrication indents on the bearing surface. These indents serve as lubricant reservoirs to rapidly build up a lubrication film in the start movement and therewith reduce the start friction. Typical application: widely  applied  in hoisting  machines  and other  construction  machines, automobiles, tractors, trucks,  machines tools, and some mineral engines

Characteristics

• High load capacity
• Works well even in difficult conditions
• Good lubrication properties because of lubrication indents
• Wide range of temperature

Type of applications

• Forest machines
• Agriculture machines
• Forklift trucks
• Hoisting equipment

Design

• Cylindrical bearings
• Flanged bearings
• Thrust washers
• Plates
• Drawing details

Technical information and standard dimensions on the datasheet

Bushing Sleeve Technical Data:

Max. Load P	Static		120 N/mm2
	Dynamic		40 N/mm2
Max. sliding speed V(m/s)			2.5 m/s
Max. PV factor (N/mm2.m/s)			2.8 N/mm2.m/s
Operating Temperature	Max. Greased		150°C
	Max. Oil-lubricated		250°C
Coefficient of friction			0.06~0.15μ
Surface roughness (Ra)			≤ 0.8 µm
Surface hardness		Normal	>200 HB
		For longer service life	>350 HB

Bronze Bushing Size Chart