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JDB Solid Lubricant Inlaid Bearing

Solid Lubricant Inlaid Bearing

Features

JDB material is made of strong cast bronze based metal with special solid lubricants embedded. The base metal withstands high load and the solid lubricants provide for self-lubrication. The bearing shows excellent performance without pre-lubrication under conditions of extreme high/lower temperature with low speed.

This material provides a maintenance-free bearing solution, particularly for high load, intermittent of oscillating motion.

This kind of bearing can be applied under dry, high temperature, high pressure, corrosive, water or other chemical environments when no oil can be introduced.

Now is widely be used in automotive products line, water engineering, dam gate, plastic industries, successive casting machines, steel rollers in metallurgy industry, mineral machines, ships, turbo generators, hydraulic turbines and injection molding machines...

Available forms

Bushes, flanged bushes, WC thrust washers, strip and other non-standard parts and so on.

Application Features

  • Basically general-purpose products, suitable for various circumstances Including high or low load,high or low temperature, with oil or oilless lubrication, or even In the water. With it's matrix made of high strength brass, It's hardness doubles than nornal bronze bushings and the wear performance improves in large degree, so it is applicable for conticaster pitching mathine, converors of metallurgy industry. It could also be used in plastic injection machines, in the automatic switch of high-tension electricity, in the luffing and surpporting parts of construction machines, hydraulic gate supporter, pulley, drive wheels of water control project, and also for drying tunnel of paper machines, auto die, sliding parts for ships unmooring etc.
  • Products of JDB-2 series are mainly for circumstances with low load high temperature, for example: gemel of fireplace gate, raceway of baker, machines of light industry, machine tools industry and so on.
  • The innerside material of products of JDB-3 series is the same as that of the JDB-2 series, so they could function as well as the that of JDB-2 series. In additional, they have other advantages such as saving material costs, improving compressive strength, and that they could be assembled by welding the bushing surface together with other matrix. They are suitable for parts which need not oil lubrication of construction machines, metallurgy machines and conveying machines.
  • Products of JDB-4 are a typical kind of material-saving product. They could replace JDB-2 products where the mechanical requirements are not so high. They could reduce the cost largely, and meet the demands for application. Such as: mould guide bushing, die carrier of plastic moulding machines and so on.
  • Products of JDB-5 series are a kind of fortified products. Due to it's excellent comprehensive capability, it's especially suited in the surpporting parts of hoisting machines, for example: surpport of rooter. surpport of hoist engine, surpport of crane and so on. But as for their matrix being steel, they are not suitable for circumstances with water, acid and alkali.

ALLOY MATERIAL

Type JDB-1 JDB-2 JDB-3 JDB-4 JDB-5
GB1776-87
 ZCuZn25
AI6Fe3Mn3		 ZCuSn6Zn6Pb3 ZCuAI10Fe3 ZCuSu10P1 ZCuSn6Zn6Pb3 HT250 GCr15
ISO1338 GCuZn25
AI6Fe3Mn3		 GCuSn6Zn6Pb3 GCuAI10Fe3 - CuSn6Zn6Pb3
Fe3Ni5		 - B1
DIN G-CuZn25
AI5		 GB-CuSn5Zn5Pb5 GB-CuAI10Ni GB-CuSn10 CuSn6Zn6Pb3
Ni		 - 100Cr6
JIS HBsC4 BC6 AIBC3 BC3 BC6 FC250 SUJ2
ASTM/UNS C86300 C83600 C95500 C90800 C83600 Class40 52100
BS HTB2 LG2 AB1 PB4 LG2 - -

ALLOY CHEMICAL COMPOSITIONS

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 DATA

Performance index JDB-1 JDB-2 JDB-3 JDB-4 JDB-5
Max Move Load Capacity P ( N/mm2 ) 100 60 70 60 250
Max Sliding Speed V ( m/s ) Dry0.4 oil5 2 2 0.5 0.1
Max PV Value Limit ( N/mm2·m/s ) 3.8 0.5 0.6 0.8 2.5
Density ρ( g/cm3 ) 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 Working Temperature ( ℃ ) 300 350 300 400 350
Friction coefficient ( μ ) Oil Lubrication: 0.03 Dry Friction:: 0.16

SOLID LUBRICANTS

Codes of Solid Lubricants SM01 SM02 SM03
Main Compositions Graphite Graphite+MoS2 PTFE+Graphite+Olefin
Features Good chemical stability,temperature < 250℃ Good wear performance and chemical stability, temperature < 400℃ Lowest friction coefficient and good water lubrication, temperature Rang -40～80℃
Application Place General(atmosphere) High temperature high load capacity Seawater use, high pressure use