introduction of materials and products for applications 4-4 materials for food processing equipment so far any material has failed to fully satisfy the functions required of a sliding material for food processing machinery for example an allowable operating temperature range with super molecular weight polyethylenes is small while natural ptfe have a higher friction coefficient and are not aesthetically acceptable our novel fluoro resin bearee fl 3642 is a unique material that positively solves these problems plastic container or wrapping standard test japan food research laboratories approved test conditions ring-on-disk tester bearing pressure 0.98 mpa peripheral speed 32 m/min mating material sus304 lubrication dry or water test duration 50 hrs
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introduction of materials and products for applications 4-6 nbr rubber with sliding capability bearee er3200 using acrylonitrile butadiene rubber nbr as a base material bearee er3200 boasts low friction low wear resistance characteristics while maintaining advantages of rubber material
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introduction of materials and products for applications 4-7 sliding materials with electrical conductivity preventing electrostatic charges this material has not only excellent friction and wear characteristics but also has electrical conductivity utilizing this material as bearings for which anti-static properties are required the grounding device could be removed unlike conventional carbon brushes these materials are less prone to cracking or chipping they also operate more quietly
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introduction of materials and products for applications 4-8 sliding materials for high contact pressures 300 in general the allowable pressure for plastics material is low when compared with metal material however it can be used under high pressure by bonding it to a backing metal or using a thin layer of plastics which is reinforced with filler 1 bearee pi the bearee pi series with a base resin of polyimide can carry 50 to 100 mpa of allowable pressure the grade to be adopted is selected according to temperature sliding velocity and manufacturing method table 8 allowable pressure and manufacturing method pressure mpa 250 200 150 100 50 0 25 °c t t =1 °c 00 2 t °c 50 0.02 0.04 0.06 0.08 0.10 0.12 0.14 deformation mm figure 7 deformation compressive strain by load pressure grade bearee pi 5001 bearee pi 7000 allowable pressure mpa kgf/cm2 50 250 500 2,500 manufacturing method extrusion forming coating remarks the deformation is measured while bearee fl 9000 is clamped between steel pla
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introduction of materials and products for applications 4-9 sliding materials for use in machine tools bearee fl 3305 bearee fl 3305 which is based on fluoro plastics with a low friction coefficient and designed with improved wear and creep resistance and thermal conductivity is material developed exclusively for machine tools and has the lowest friction coefficient when lubricated with oil
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introduction of materials and products for applications 4-10 plastics materials for gears plastics gears are used in various areas due to their light weight no need for lubrication low noise corrosion resistance and ease of mass production ntn engineering plastic materials for gears are widely prepared for particular applications or functions from super engineering plastic to general purpose engineering plastic to ensure the optimum gear
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introduction of materials and products for applications 4-13 seal materials for sliding applications ntn engineering plastics have excellent sealing capabilities against gas and liquid good wear resistance and low friction characteristics
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introduction of materials and products for applications 4-14 sound damping material for curtain walls tall buildings constructed with curtain wall structures require a sliding material to smooth the relative movement between the steel frame and other building materials movement caused by differences in thermal expansion earthquakes wind etc is smoothed eliminating jarring sounds ntn engineering plastics include materials for this purpose table 14 features grade bearee fl 3000 bearee uh 3954 bearee fl 7075 features low coefficient of friction with no lubrication prevention of jarring sound between metals high load carrying capability superior weather resistance resistant for most of chemicals fire or flame retardant capability superior electric insulating characteristics superior shock resistance can be applied in this layers to complicated shapes refer to the test data bearee fl3000 bearee fl7075 page 55 page 57 washer
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introduction of materials and products for applications 4-15 sliding materials for bridges and anti-earthquake structures a bridge repeatedly expands and contracts due to daily and seasonal temperature changes one side of the bridge bearings smoothly slides with the bridge to relieve the generated stress on the bridge an anti-earthquake device has a mechanism to reduce an earthquake s power by sliding the building according to the earthquake s intensity as one means to slide the building sliding materials are utilized for these bridges and antiearthquake devices bearee fl3020 is used which is excellent for big loads with low friction and resistant to the climate changes table 15 materials and characteristics material name bearee fl 3020 base resin ptfe characteristics · low friction coefficient under the high surface pressure · superior durability in many environmental conditions base steep plate for adjustment elastic sliding bearing underground beam horizontal spring concrete shoe sl
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introduction of materials and products for applications 4-16 compound products by combining bearee materials with other materials the advantages of each material can be utilized
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introduction of materials and products for applications 4-17 coating materials bearee coating material provides a hard thin and uniform layer and is applied to the location where thermal expansion should be small or precision is required also the characteristics of wear resistance and non-stick quality can be utilized coating methods such as spray powder coating dipping etc are adopted according to the kind of material
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