Heavy Duty Crane Bronze Sleeve Bearing for Industrial Applications

Product Description

Features

Parameters

Application Scenario

Professional Customization CNC Machine Turning Shaft Bushing High Quality Brass Sleeve Bush

Get In Touch With Us

Why Bronze? Key Material Advantages

Bronze, specifically grades like SAE 841 (or 800) or SAE 660 (932 Bearing Bronze), is the preferred material for these sleeves in crane applications for several critical reasons: High Load-Bearing Capacity: Bronze can withstand the immense static and dynamic loads that cranes are subjected to without deforming. Excellent Wear Resistance: The sleeve is designed to be the sacrificial component. It wears down slowly, protecting the more expensive and harder-to-replace steel pin and the crane's structural ears. Embeddability: Small particles of dust or debris can embed themselves into the softer bronze surface instead of scratching and scoring the hardened steel pin, preventing catastrophic failure. Conformability: Bronze can slightly deform to compensate for minor misalignments in the linkage. Corrosion Resistance: Bronze offers good resistance to corrosion, which is crucial for cranes operating outdoors or in humid environments. Low Coefficient of Friction: It provides a naturally good bearing surface against steel, especially when properly lubricated. Performance under Low-Speed / High-Load: Unlike roller bearings that can brinell (dent) under heavy static loads, bronze bushings excel in these conditions.

ZCuSn5Zn5Pb5

Casting: ZCuSn5Zn5Pb5 has good casting properties and can be formed by various casting methods such as sand casting, permanent mold casting, and pressure casting, enabling the manufacture of various complex-shaped parts. Machining: Due to its moderate hardness, it has good machinability. It can be processed by mechanical processing methods such as turning, milling, drilling and grinding to produce part surfaces and dimensions that meet different precision requirements. Heat Treatment: In order to improve the structure and properties of the alloy, appropriate heat treatment such as annealing and solution treatment can be carried out. Annealing can eliminate casting stress and improve the toughness and workability of the alloy; solution treatment can improve the strength and hardness of the alloy.

C86300

Processing Characteristics Casting: C86300 has good casting performance and can be easily formed by various casting methods, such as sand casting, die casting and investment casting. It can produce complex-shaped components with high dimensional accuracy and surface quality, meeting the needs of different application scenarios. Machining: The alloy has good machinability and can be processed by turning, milling, drilling, grinding and other machining methods. It can obtain high-precision components with good surface finish, which is convenient for subsequent assembly and use. Welding: C86300 has certain weldability and can be welded by appropriate welding methods. However, in the welding process, it is necessary to pay attention to controlling the welding parameters to avoid problems such as cracks and porosity and ensure the welding quality.

ZCuSn10Pb1.

Physical Properties Density: The density is about 8.8g/cm³. With a relatively large density, the weight factor needs to be considered in the design and use process, especially in some occasions where the weight is strictly required. Melting Point: The melting point is generally about 900℃ - 950℃. Compared with pure copper, its melting point is reduced, which is beneficial to the melting and forming in the casting process. Electrical and Thermal Conductivity: Due to the high copper content, ZCuSn5Zn5Pb5 still has good electrical and thermal conductivity and has certain application potential in some occasions where good electrical or thermal conductivity is required.

ZCuSn10Pb5.

Main Elements: The main alloying elements in ZCuSn10Pb5 are tin (Sn) and lead (Pb). It typically contains about 10% tin and 5% lead. The high tin content provides good corrosion resistance and wear resistance, while lead helps to improve the alloy's machinability and lubricity.

ZCuPb10Sn10.

Mechanical Manufacturing：It is suitable for manufacturing heavy-duty and high-speed wear-resistant parts, such as bearings, gears, and worm wheels. For example, in industrial machinery, the bearings and gears that need to work under high load and high speed can use ZCuPb10Sn10 to improve service life and reliability.

ZCuPb15Sn8.

ZCuPb15Sn8 has good casting performance and can be easily formed by various casting methods, including sand casting, die casting and investment casting. This allows for the production of complex-shaped components with high dimensional accuracy. Machining: Although it has a certain hardness, the alloy has good machinability. It can be processed by turning, milling, drilling and other machining methods to obtain components with high precision and good surface quality. Heat Treatment: Appropriate heat treatment processes, such as annealing and quenching, can be carried out on ZCuPb15Sn8 to further improve its mechanical properties and microstructure, meeting the specific requirements of different applications.

Common Types of Bronze Bushings in Cranes

Solid Bronze Bushings: The most basic type, made from a solid piece of bronze. They are durable and cost-effective for many applications.
Lubricated Bushings: These have grooves and holes machined into them to allow grease to be distributed across the entire bearing surface. This is extremely common in cranes. You will find zerk fittings (grease nipples) on the crane's joints specifically to lubricate these bronze sleeves.
Graphite-Plug Bronze Bushings (Oil-Impregnated): These bushings have small plugs of solid graphite embedded in them. As the bushing operates, the graphite slowly transfers to the mating surface, providing a constant, self-lubricating film. This is useful for applications where regular greasing is difficult.
Flanged Bushings: These have a flange on one end to handle thrust loads in addition to radial loads.

Product Application Scenarios

Bearing copper bushing

Copper sleeve bearings bushing

Flange sleeve bushing

Quick Question And Answer

Bronze Bushing, Bronze Liner, Bronze Slide, Bronze Nut, Bronze Worm Gear, Bronze Slider And Other Bronze Alloy

Do you have requirements on quantity?

We can provide the quantity of drawings according to the customer, because there is a price advantage when there is a quantity, precisely because the quantity is mostly superior.

What material of copper do you have the most wear-resistant?

Also according to the customer with the frequency, performance, environment and other conditions to determine, generally we are recommended 555 such material.

Can we finish and deliver in a week?

Yes, there is no problem at all; the deadline is decided by the customer!

What kind of casting process can your company do?

Our company has many years of experience in casting machinery processing, with sand casting, centrifugal casting, metal casting, investment casting and other casting processes.

What are the commonly used materials?

Frequently made materials include: brass, tin bronze, lead bronze, aluminium bronze, phosphor bronze.

What kind of packaging do you use?

Depends on whether you are exporting or not, all export packaging is made of 15nm thickened non-fumigation boards, the domestic standard packaging is 10mm thin non-fumigation boards, the legs are solid wood, the domestic simple packaging is a cardboard box or grass rope winding.

What is your after-sales service commitment?

Our after-sales service commitment, the spot is shipped at that time, expedited 3 days delivery, normal about 20 days delivery, bulk about 20-30 days delivery, to ensure that the material, to ensure that the size, any problem free replacement or unconditional refund.

Customers want to expedite?

Our company's normal working period is 30 days, if you have special requirements, we can also discuss with the factory, with the time off work to expedite processing, expedited costs to talk to the customer. Depending on the circumstances of the expedited cost.