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Center cut flange Oilless bearing

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The Center cut flange Oilless bearings are machined from continuous cast bronze bar stock.

They are then milled and plugged with solid lubricant graphite based plugs. The plugged graphite bushings are great for applications where maintenance is difficult and where normal grease and oil based lubricants can burn off due to high temperatures.

The cast bronze base material gives these products stronger bearing abilities when compared to other self lubricating bronze bushings.

Description

Center cut flange Oilless bearing is the self-lubricating bush which is based on the metal friction surface of the bush basement where holes are spread reasonably in the proper size and a specific solid lubricant that has a self-lubricating function is inserted, This kind of bush has included the advantages of the metal basement and lubricant materials that have the specific direction for producing chemicals. It has broken in the limit of general bush that depends on an oil film. Oilless bush is especially applied in oil-free high temperature, high load, low speed, contamination resistance, corruption resistance radiation resistance as well as the use under such special work conditions that cannot be lubricated, such as underwater and in vacuum space. The products are widely applied in metallurgy and steel-rolling equipment, mine machinery, shipping machinery, shipping industry. Space voyage, hydraulic turbine, gas turbine, filling equipment, instruments, and weave machinery. It also has a wide range of applications in other industrial and agriculture machinery. And it is being used more and more widely.

The basement of the oilless bush depends on the work conditions of the bush itself.

The commonly used materials are high strength brass tin bronze, etc The inserted solid lubricant materials are mainly two kinds of which based graphite, MoS2 as well as PTFE. According to the bushings’ working conditions, it can ensure that the product can meet various temperatures, loads, movements, and medium through the combination between the different metal basement and solid lubricant and ensure that it can work steadily and credibly

Center cut flange Oilless bearing

Feature

1. Heavy-duty oil-free bearing with embedded solid lubricant base of the high-strength brass alloy.
2. Available without lubrication
3. It exhibits an excellent wear resistance in difficult locations of oil film configuration
4. It has excellent chemical resistance and corrosion resistance.

Applications

Applied to any industry’s purposes with over 300℃ For even higher.
Such as steelworks, elongators, industrial baking ovens, heat treating ovens, heat exchangers, dynamos and
supports for nuclear energy reactors, etc.

modeloilless bearingoilless bearingoilless bearingoilless bearingoilless bearing
China Brands
GB1776-87
ZCuZn25
AI6Fe3Mn3
ZCuSn6

Zn6Pb3

ZCuAI10Fe3ZCuSu10P1steel+ZCuSn6

Zn6Pb3

HT250GCr15
ISO1338GCuZn25
AI6Fe3Mn3
GCuSn6

Zn6Pb3

GCuAI10Fe3CuSn12steel+CuSn6Zn6

Pb3Fe3Ni5

B1
DING-CuZn25
AI5
GB-CuSn5Zn5Pb5GB-CuAI10NiGB-CuSn10steel+CuSn6

Zn6Pb3Ni

100Cr6
JISHBsC4BC6AIBC3BC3BC6FC250SUJ2
ASTM/UNSC86300C83600C95500C90800C83600Class4052100
BSHTB2LG2AB1PB4LG2

Material Alloy Chemical Composition

chemical elementoil-free bearingoil-free bearingoil-free bearingoil-free bearingoil-free bearing
Cu ( % )RestRestRest
Sn ( % )6106
Zn ( % )2566
Ni ( % )
AI ( % )610
Fe ( % )33RestRest
Mn ( % )30.905 – 1.30.20 – 0.40
Cr ( % )1.30 – 1.65
C ( % )2.5 – 40.95 – 1.05
Si ( % )1.0 – 1.30.15 -0.35
Pb ( % )33

Technical parameter

Performanceoil-free bearingoil-free bearingoil-free bearingoil-free bearingoil-free bearing
density88.97.88.98
hardness HB≥ 210≥ 70≥ 150≥ 75≥ 235
tensile strength N/mm²≥ 750≥ 250≥ 500≥ 270≥ 800
Yield Strength N/mm²≥ 450≥ 90≥ 260≥ 150≥ 450
Elongation %≥ 12≥ 13≥ 10≥ 5≥ 8
coefficient of linear expansion1.9×10-5/℃1.8×10-5/℃1.6×10-5/℃1.8×10-5/℃1.9×10-5/℃
Operating temperature-40~+300℃-40~+400℃-40~+400℃-40~+400℃-40~+300℃
Maximum dynamic load N/mm²100605070120
Maximum line speed(干)m/min1510201015
Maximum PV value N/mm²·m/s200606080200
compression deformation 300N/mm²< 0.01< 0.05< 0.04< 0.05< 0.005

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