Bearing Bush
Product Overview and Advantages
Sliding bearing bushes are installed between the shaft and the housing to reduce direct metal-to-metal contact. Compared with rolling bearings, they offer key application advantages:
- High static load capacity
- Shock and vibration resistance
- Compact installation space
- Operation in contaminated environments
- Reduced maintenance requirements
Bearing Bush Types
Bronze Bearing Bush: Suitable for heavy-duty applications due to high wear resistance and load-bearing capacity. Materials include tin bronze, aluminum bronze, and phosphor bronze.
Self-Lubricating Bearing Bush: Incorporates lubrication materials into the structure, making it ideal for limited lubrication, difficult maintenance, and continuous operation. Common materials include sintered bronze, PTFE composite, and polymer-based materials.
Composite Bearing Bush: Combines multi-material layers to achieve low friction and superior wear performance. Typical structure includes a steel backing layer, sintered bronze layer, and low-friction sliding layer.
Flanged Bearing Bush: Provides additional axial positioning to prevent movement inside the housing, commonly used in pivot assemblies and heavy equipment joints.
Material Selection Guide
Bronze
High load capacity, good wear resistance for heavy machinery
01
Brass
Good machinability, corrosion resistance for general mechanical parts
02
Steel-backed Composite
High strength, low friction for hydraulic and industrial equipment
03
PTFE Composite
Low friction, maintenance reduction for precision applications
04
Sintered Bronze
Oil retention capability for self-lubricating systems
05
Production processes strictly follow international manufacturing standards (such as ISO, DIN, and ASTM) to meet the rigorous demands of global industrial markets.
Machining: CNC turning, internal boring, surface machining, grooving, flange forming
Surface Treatment: Polishing, coating, hardening treatment
Quality Inspection: Inner diameter measurement, outer diameter measurement, length verification, hardness testing, surface roughness inspection, dimensional tolerance checking
Custom Solutions: Custom production is available based on customer drawings, samples, equipment requirements, and operating conditions, including customized dimensions, special materials, oil grooves, lubrication holes, split structures, flanged designs, and surface treatments.
Selection Guidelines
Check Operating Load
High-load applications generally require bronze materials, steel-backed structures, and increased wall thickness.
Consider Shaft Speed
Higher speed applications require lower friction materials, proper lubrication design, and accurate surface finish.
Evaluate Working Environment
Account for dust exposure, temperature, moisture, chemical contact, and maintenance accessibility.
Match Shaft and Housing Dimensions
Verify shaft diameter, housing diameter, installation clearance, and operating temperature.
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