Solid lubricating bearings

Self-Lubricating Bearings With Solid Lubricants

These bearings do not need to be lubricated because they are filled with a solid, porous resin that is impregnated with lubricating oil.

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Brief Description

This material provides a maintenance-free and low friction bearing solution, particularly for high load and intermittent oscillating motion. Solid lubricants within the bronze combine the strength of the bronze with the wear resistance of the graphite. Applications covered are automotive production lines, water industry, dam gates, plastic molding machinery etc. Different types of bronze alloy can be offered according to the application.


 Custom Graphite Lubricating Bearings  Suppliers

High-quality performance – High-quality oilless bushings

Solid Lubricated Bearings
Grease-Free. Zero Maintenance for Life.

Bearing Sleeve Plugged Brass Bush Graphite Bushes Bronze Bushing Bearing

Bronze + Solid Lubricants

An oil-free bearing (self-lubricating bearing) can increase productivity and save cost/time through material properties that can withstand both high and low temperatures, corrosive environments, debris, and shock loads.
Graphite Plugged Oil Bearing is made of cast bronze alloy base material with special plugged solid lubricants. The base metal withstands high loads, and the graphite provides self-lubrication. This type of oil-bearing shows excellent performance without lubrication under extreme high / low-temperature conditions at low speed. JDB bearings with graphite plugged oil provide a maintenance-free bearing solution, especially for high loads, intermittent oscillatory motion.

Dry Lubrication = using solid lubricant

What is solid lubricant?: Powder or solid lubricant used in adverse conditions such as high temperature and corrosive environment, and where oil or grease cannot be used. It is usually mostly made with natural graphite, molybdenum disulfide, and P.T.F.E.
How does solid lubrication work?
A solid lubricant is a polymer material that is poured into the bearing cavity. This material consists of innumerable micropores containing oil. The oil is released during the operation of the bearing and when the bearing is idle the pores absorb the oil again.
Solid lubricating bearings – maintenance-free, Excellent performance under high loads and intermittent operation; Also available with graphite inserts for temperatures above 250°C.
Cast Bronze Bearing Material with Solid Lubricant Inserts
Self-lubricating slide bearings with dry lubricating

Bushings with graphite inserts

Widely used on mold construction.


Cast Bronze Bearings

with Solid Lubricant Inserts

China Copper Bushing – High-Quality Price, sliding bush, Find the perfect sliding bush for your requirement at, Browse through multiple variations for sliding bush that matches yours.

Safe Trading Copper Self-lubricating Bushing on

Solid lubricating bearings High wear resistance and high load to use  the process without refueling maintenance

Self-lubricating bearing is used where the demand for maintenance-free operation, high load, or high temperature makes it impossible to use conventional bearings.  Manufactured and sell the bearing from China. Function oil-free bronze self-lubricating bearings use high-grade bronze alloys as their base material and have a finely finished surface with pockets in which a specially formulated solid lubricant is embedded. The pattern of the lubricating material is arranged geometrically, so that the entire bearing surface is lubricated permanently, in the direction of motion. During operation, a very thin, but nevertheless extremely strong, the lubricating film is deposited automatically over the complete moving surface. This film remains intact at all times, even at standstill. The solid lubricant covers 25–30% of the sliding surface. Oil-free bushing bearings are primarily intended for intermittent duty.

Solid lubricating bearings BENEFITS

Product Material resists Chemicals
Chemical Resistant
Material is suitable for continuous sliding, rotating, and oscillating movement
Suitable for Continuous Sliding, Rotating, and Oscillating Movement
Material ideal for roller bearing replacement
Replace Roller Bearing
Quality materials you can rely on
The material allows for compact design
Common to One-Piece Compact Design
The material offers good wear resistance
Increased Wear Resistance
Material operates well in a dry environment
Dry operation
The material provides dimensional stability
Dimensional Stability

Solid lubricating bearings size

Self Lubricating Bearings,

Wear-resistant metal matrix material by adding a variety of lubricating material to reduce the friction coefficient and self-lubricating …

oiless bronze bearing size chart

Solid Lubricating Bearings Characteristics:

1. May work without any oil for long period.
2. Extremely high load capacity, good anti-wear, and low friction.
3. Particularly appropriate for low speed and high load.
4. Suitable single direction axial loads
5. Free design is possible on the shape and size
6. Can be used in a wide range of temperatures, from - 40℃+ 300℃

 Solid lubricating Bearings & Bronze Bearing Design

The geometry, as well as the choice of material, is based on the specific application of the bearing. This means that each bearing is specially made to meet all load, environmental, and temperature requirements where it is to be used.

Base material produces a wide range of copper-based alloys, which are used as base material on oil-free bushing bearings. Data relating to four of those alloys are given in the table below. The capacity or carrying load is very much dependent on the choice of alloy, The selection of the base material will thus be based on the requirement of load-carrying capacity. Note that the temperature has an influence on the allowable load values and also the choice of lubricant.

  • CuSn5Pb5Zn5 Gun Metal oil-free bronze bushing
  • CuSn12 Tin Bronze oil-free bronze bushing
  • CuSn10Pb10 Lead-Tin Bronze bushing

Oilless Bushings  Alloy materials

Model JDB-1 JDB-2 JDB-3 JDB-4 JDB-5
China Brands
ZCuSn6Zn6Pb3 ZCuAI10Fe3 ZCuSu10P1 Steel+ZCuSn6Zn6Pb3 HT250 GCr15
GCuSn6Zn6Pb3 GCuAI10Fe3 CuSn12 Steel+CuSn6Zn6Pb3Fe3Ni5 B1
GB-CuSn5Zn5Pb5 GB-CuAI10Ni GB-CuSn10 Steel+CuSn6Zn6Pb3Ni 100Cr6
United States
C86300 C83600 C95500 C90800 C83600 Class40 52100
British Standard HTB2 LG2 AB1 PB4 LG2

Material alloy chemical composition

Chemical Elements JDB-1 JDB-2 JDB-3 JDB-4 JDB-5
Cu ( % ) Rest Rest Rest
Sn ( % ) 6 10 6
Zn ( % ) 25 6 6
Ni ( % )
AI ( % ) 6 10
Fe ( % ) 3 3 Rest Rest
Mn ( % ) 3 0.905 – 1.3 0.20 – 0.40
Cr ( % ) 1.30 – 1.65
C ( % ) 2.5 – 4 0.95 – 1.05
Si ( % ) 1.0 – 1.3 0.15 -0.35
Pb ( % ) 3 3

Technical Parameters

Performance JDB-1 JDB-2 JDB-3 JDB-4 JDB-5
Max.load P ( N/mm² ) 100 60 70 60 250
Max.speed V ( m/s ) Dry0.4 oil5 2 2 0.5 0.1
Max.PV ( N/mm²·m/s ) 3.8 0.5 0.6 0.8 2.5
Density ρ( g/cmsup3 ) 8.0 8.0 7.6 7.3 7.8
Tensile strength ( N/mm² ) > 600 > 250 > 500 > 250 > 1500
Elongation ( % ) > 10 > 4 > 10
Hardness ( HB ) > 210 > 80 > 80 > 160 HRC> 55
Max.temp ( ℃ ) 300 350 300 400 350
Friction coef. ( μ ) Oil lubrication: 0.03 Friction(dry): 0.16


  • Maintenance-free bearing material for heavy-duty applications
  • Excellent performance under high loads and intermittent operation
  • Also available with graphite inserts for temperatures above 250°C

Shop Solid Lubricating Bearings At Bronzelube.Com, Supply High-Quality Copper Bushing With Graphite Inserts To Your Specifications.

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Additional information


Custom Size, Extra large, Imperial size, Metric Size

Cylindrical bushes

Solid Bronze Bushing, Bimetal Bushes, Cast Bronze Bushing, Wrapped Bushing


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Sliding Bearing Material

Contact Info

No .555 ChuangYe Road,Industry Park, Jiashan Zhejiang, China. 314100

Phone: T: +86 (0)57384499350

Mobile: + 86 (0)18258386757

Fax: +86 (0)57384499352

Web: Bronze Lube Company

Long-lasting, self-lubricating bearings

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