Bronze Bearings made of CuSn8 with Grease Reservoirs

Bronze Bearings and Bronze Sleeve Bushings made of CuSn8

Bronze Bearings and Bronze Sleeve Bushings made of CuSn8 with Lubrication Indents, with Grease Reservoirs for Long Term Lubrication

CUSN8 bronze bearing component made from CUSN8 material; metric Wrapped Bronze Bush bushes. Bronze plain bearing bushings with lubrication pockets. Manufacturer.

Product Description: Bronze Bearings Made of CuSn8 with Lubrication Indents and Grease Reservoirs

FB090 and FB092 Bronze Bearings

The FB090 bronze bearing is constructed from high-density CuSn8P (tin bronze) alloy, featuring a specially formulated, high-density copper strip as the base material. Its surface is precisely rolled with either diamond-shaped oil pockets or hemispherical oil grooves, depending on the user’s specific requirements. This innovative design offers high bearing pressure resistance, excellent wear resistance, and an extended service life. The design allows the FB090 bearing to replace traditional cast copper sleeves, reducing mechanical volume and overall costs.

FB092 Bronze Bearings are similarly made from CuSn8P, with the surface of the bearing incorporating evenly spaced lubricating through-holes, which are positioned at a specific angle and density. This design facilitates the formation of an oil film during operation, significantly reducing the coefficient of friction. Both the FB090 and FB092 bearings are recognized for their excellent fatigue strength, corrosion resistance, wear resistance, and high load-bearing capacity. These properties make them ideal for applications in high-load, low-speed environments.

Structural Properties and Uses

  • FB090 Bronze Coiled Bearings: These bearings are made from CuSn8P and feature diamond-shaped oil pockets on the surface that store grease, extending refueling intervals and improving lubrication performance. These bearings are particularly suitable for high-load, low-speed applications.
  • FB092 Bronze Coiled Bearings: These bearings are also made from CuSn8P, with uniformly arranged lubricating through-holes. They can store grease and form an oil film during operation, further reducing friction. The FB092 series is widely used in agricultural machinery, construction machinery, and other high-load, low-speed applications.

Product Advantages

  1. Material and Cost Efficiency: The FB090 and FB092 bearings save a significant amount of copper material and reduce machining time compared to traditional copper sleeves.
  2. Lightweight and Cost-Effective: These bearings are lighter than vehicle-made bushings or rolling bearings, offering a more affordable solution.
  3. Extended Maintenance Intervals: The bearings are capable of storing grease on their friction surfaces, which extends the lubrication interval up to five times longer than that of copper sleeves.
  4. High Load-Capacity: These bearings are designed to withstand extreme loads, making them ideal for use in rough friction surfaces.
  5. Versatility: The bearings can be processed with various hole patterns or lubrication pits, providing flexibility for different operational needs.

Metallographic Features

  • FB090 Material Structure: The high-density bronze roll-forming process, along with the spherical oil pockets, reduces wear, improves anti-corrosion performance, and prolongs service life. The oil pockets are specially synthesized to minimize wear.
  • FB092 Material Structure: The regular arrangement of oil holes on the surface enables the bearing to store grease, which can be applied before or after assembly. This ensures the easy formation of an oil film during operation, significantly reducing the friction coefficient.

Applications

These bearings are widely used in machinery and equipment across various industries, including:

  • Agricultural Machinery
  • Construction Machinery
  • Forest Machinery
  • Lifting and Hoisting Equipment (e.g., conveyors, elevators, hoists, levelers)
  • Automotive and Tractor Chassis
  • Machine Tool Industry
  • Mining Machinery
  • Steel Rolling Industry

FB090 and FB092 bearings are commonly found in applications such as lifting machinery, conveyors, automotive chassis, and agricultural equipment, offering a compact and cost-effective alternative to traditional copper sleeves. They can also be manufactured into bearing bushes, flanged bushings, thrust washers, and ball bowls.

Conclusion

The FB090 and FB092 bronze bearings represent an advanced solution for high-load, low-speed applications, providing superior lubrication, enhanced wear resistance, and reduced maintenance costs. These bearings are an excellent choice for industries requiring long-lasting, reliable bearing solutions in demanding conditions.

Metal-Polymer Plain Bearings Grease Lubricated

  • Availability

    We offer a wide range of bearing forms in both standard and custom dimensions:

    • Cylindrical Bushings / Split Bushings
    • Thrust Washers
    • Sliding Plates
    • Custom Bearings and Bushings

  • In addition to standard bushing forms, we provide tailored solutions, including:

    • Metric and imperial bushings made to order
    • Special bushing dimensions
    • Half-bushings
    • Custom shapes formed by stamping
    • Bearings with locating notches, lubrication holes, and machined grooves
    • Fully customized bushing designs

  • We ensure flexibility in manufacturing to meet unique specifications and application requirements.

Metal-Polymer Plain Bearing Material Grease Lubricated
  • Extended Service Life: Increased longevity from the high-wear-resistant bronze layer and superior overlay resistance against fatigue loading, cavitation erosion, and edge loading.
  • Reduced Noise
  • Eliminates metal-to-metal contact between the bearing and the shaft, reducing noise during operation.
  • Efficient Operation
Product Benefits
  • Ideal for Continuous Sliding and Rotation
  • Suitable for Continuous Sliding, Rotating, and Oscillating Movements
  • Easy Assembly
  • Cost-Effective System
  • Reduced Downtime and Labor Costs
  • Competitive Pricing
  • Compact One-Piece Design
  • Efficient Lubricated Operation
Rolled Bushing Bearing forms made to order: cylindrical bushes with non-standard dimensions, customized bearing designs

Slide bearings Alloys

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Standard Bushing Tolerance（According to DIN ISO/3547）

Roller Bushing Tolerance

Standard diameter Outer diameter of bushing Matching hole Bushing inner diameter size Matching shaft diameter
10-18 +0.065
+0.030		 +0.018
0		 +0.046
0		 – 0.016
– 0.043
18-30 +0.075
+0.035		 +0.021
0		 +0.052
0		 – 0.020
– 0.020
30-50 +0.085
+0.045		 +0.025
0		 +0.062
0		 – 0.025
– 0.064
50-80 +0.100
+0.055		 +0.030
0		 +0.074
0		 – 0.030
– 0.076
80-120 +0.120
+0.070		 +0.035
0		 +0.087
0		 – 0.036
– 0.090
120-180 +0.170
+0.100		 +0.400
0		 +0.100
0		 – 0.043
– 0.106
180-250 +0.210
+0.130		 +0.046
0		 +0.115
0		 – 0.050
– 0.122
250-315 +0.260
+0.170		 +0.052
0		 +0.130
0		 – 0.056
– 0.137
Bronze Bearings and Flange Bushings made of CuSn8

Product Advantages, Material: Cu – 91.3% Sn – 8.5% P – 0.2%

Standard: Cu Sn8. ISO 3547. CW453K

Material and Time Efficiency: Significantly reduces copper material usage and machining time compared to traditional copper sleeves.

Lightweight and Cost-Effective: Lighter than vehicle-made bushings and rolling bearings, offering a more economical solution.

Extended Maintenance Intervals: Capable of processing various holes and pits to store grease on the friction surface, extending refueling intervals up to five times longer than copper sleeves.

Exceptional Load-Carrying Capacity: Provides high load-bearing performance, particularly effective on rough friction surfaces.

Available Bearings Products: Straight sleeves, thrust washers, flanged bushings, bearing bushes, slide plates, steel sleeve assemblies.