ShenZhen Haohaichang Industrial Co.,Ltd.
ShenZhen Haohaichang Industrial Co.,Ltd.


Bushing, a high-quality mechanical component expertly designed to reduce friction, wear, and vibration. Crafted from robust, long-lasting materials, this versatile bushing offers exceptional performance in a wide range of applications. Enhance the efficiency and lifespan of your equipment with this dependable, precision-engineered solution.

Types of Bushing/Sleeve

Related Precision Machining Products
Quality Control of Bushings/Sleeves

Quality Control of Bushings/Sleeves

Material Inspection: The quality control process begins with the inspection of incoming raw materials. The materials used for bushings/sleeves should meet specified standards and requirements. Material testing methods may include chemical composition analysis, hardness testing, and dimensional verification.

Dimensional Accuracy: Bushings/sleeves must have precise dimensions to ensure proper fit and functionality. Quality control measures involve dimensional inspections using calibrated tools and equipment, such as calipers, micrometers, and gauges, to verify inner and outer diameters, length, and wall thickness.

Surface Quality: The surface finish of bushings/sleeves is critical for smooth operation and reduced friction. Quality control checks involve visually inspecting the surfaces for defects such as burrs, scratches, or irregularities. Surface roughness measurements may also be performed using tools like profilometers.

Tolerance Verification: Bushings/sleeves have specific tolerances that define acceptable variations in dimensions. Quality control procedures involve checking the manufactured components against these tolerances to ensure they fall within the specified limits.

Mechanical Properties: Depending on the application requirements, certain mechanical properties of bushings/sleeves, such as hardness, tensile strength, and elongation, need to be assessed. These properties can be evaluated through standardized testing methods, including hardness testing (e.g., Rockwell or Brinell) and tensile testing.

Specification of Bushing


Iron, stainless steel, brass, copper, galvanized steel, titanium, Aluminium, etc.

Surface treatment

Zinc/Nickel/Tin/Ag-Plated/Au-Plated, etc.


High-Precision nonstandard parts

(OEM Service)


Stamping/Punching/Pressing, CNC machining/Turning/Milling, Deep Drawing and other process.


IATF16949 2016;I SO9001 2015; ISO14001:2015;RoHS&REACH, etc.


Automotive/ Car Thermostat, Switch, Electric Heating, Aerospace, New energy, etc.

Product Features of Bushings/Sleeves

Bushings, also known as sleeves, are cylindrical components used in various applications to provide support, reduce friction, and absorb shocks or vibrations. The specific product features of bushings/sleeves can vary depending on the intended use and the materials they are made from.

Wear Resistance: Bushings/sleeves may have specific features to enhance their wear resistance, especially in high-load or high-speed applications. These features can include special surface coatings, heat treatment, or the use of materials with inherent wear-resistant properties.

Dampening and Shock Absorption: Some bushings/sleeves are designed to absorb shocks or vibrations, reducing the transmission of impact forces. They may have properties like high elasticity, flexibility, or the ability to deform under load, providing damping characteristics.

Corrosion Resistance: Depending on the application and operating environment, bushings/sleeves may require corrosion-resistant properties. This is particularly important when exposed to moisture, chemicals, or extreme temperatures. Choosing the appropriate material or applying protective coatings can enhance the corrosion resistance of bushings.

Application-Specific Features: Some bushings/sleeves may have additional features specific to certain applications. For example, flanged bushings have a built-in flange that provides additional stability or mounting points.

When selecting bushings/sleeves, consider the specific requirements of your application, such as load capacity, speed, operating conditions, and environmental factors. Understanding the product features and their suitability for your intended use will help ensure optimal performance and longevity.

Difference between Bushings and Bearings

Bushings are simple cylindrical components designed to reduce friction between a shaft and external structures, providing support and guidance. Commonly found in furniture, automotive suspension systems, etc., they are designed for simplicity and can be solid or feature built-in lubrication grooves to decrease friction and enhance durability.

Difference between Bushings and Bearings

Bearings, on the other hand, are more complex mechanical components with rolling elements such as balls or rollers. They reduce friction, offer greater load-bearing capacity, and provide high-precision support. Widely used in engines, motors, wheel axles, etc., bearings come in various designs to meet the demands of high-speed and high-load applications. As a hardware manufacturing supplier, HHC are dedicated to delivering high-quality bushings and bearings to meet the diverse design and application needs across different industries, contributing to the development in various fields.

A Guide to Bushing Material

A bushing is a critical component that reduces friction between a shaft and external structures, and its performance is determined by the chosen materials. Here is a guide on the types of bushing materials and the suitable processing techniques for each:

A Guide to Bushing Material


Characteristics: Exhibits good thermal conductivity and corrosion resistance.

Processing Techniques: Brass is commonly processed using mechanical techniques such as turning, milling, and drilling to achieve the desired shapes and dimensions.


Characteristics: Possesses higher hardness and wear resistance.

Processing Techniques: Bronze is often processed through precision casting, cold extrusion, or other techniques to manufacture complex-shaped bushings.


Characteristics: Known for self-lubrication and corrosion resistance.

Processing Techniques: Polymer bushings are typically manufactured using injection molding, where molten polymer is injected into molds to form the desired shapes.

A Guide to Bushing Material

Metal Coatings:

Characteristics: Provides superior wear resistance and strength.

Processing Techniques: Steel bushings are often coated using processes like hot-dip galvanizing or electroplating to achieve a protective metal coating on the surface.

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