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New Nylatron Stick-Free bearing and wear-pad material for applications requiring exceptional wear resistance
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Quadrant EPP
: 22 July, 2003 (New Product) |
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A new 'stick-free' linear bearing and wear-pad material has been developed by Quadrant Engineering Plastic Products. Nylatron 703 XL sheet offers an excellent combination of wear resistance, operating noise reduction and elimination of paint wear on opposing wear surfaces. It also offers the high strength and high limiting PV found in Quadrant's other premium nylon bearing and wear-pad materials, while adding the unique benefit of near zero stick-slip. |
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A new 'stick-free' linear bearing and wear-pad material has been developed by Quadrant Engineering Plastic Products. Nylatron 703 XL sheet offers an excellent combination of wear resistance, operating noise reduction and elimination of paint wear on opposing wear surfaces. It also offers the high strength and high limiting PV found in Quadrant's other premium nylon bearing and wear-pad materials, while adding the unique benefit of near zero stick-slip.
In loaded sliding applications, motion is often not steady because of the 'stick-slip' condition. As pressure increases or velocity decreases, most bearing and wear-pad materials will 'stick'. When the static friction force is exceeded, uncontrolled movement takes place until the forward motion again sticks. Repeated cycles of this behavior generally are defined as chatter. To reduce stick-slip and subsequent chatter, the need for costly lubricants, and their delivery systems are used to make the static friction less than kinetic friction.
As force (F) increases or velocity (V) decreases, some materials sliding over another material will stick. This requires a significant increase in force to regain motion, slip. When repeated, this action is defined as chatter.
The near zero stick-slip of Nylatron 703 XL makes it an ideal material for applications where precise and efficient motion control is required. Such uses include bearing blocks, wear guides and linear bearings. For telescoping booms on materials handling and construction equipment, bearing pads made of Nylatron 703 XL allow very accurate and smooth control of linear boom movement. Static and dynamic coefficients of friction, which are almost the same at virtually every point over the useful range of Nylatron 703 XL, allow this unprecedented degree of control.
Another benefit of the near-zero stick-slip characteristic of Nylatron 703 XL is the virtual elimination of noise associated with bearing and wear-pad chatter. Also, the new material can significantly reduce lubrication or even eliminate the need for a wear-pad lubrication system. Tests done at Quadrant's R&D center in Reading have shown that Nylatron 703XL wears well against painted surfaces, without removing the paint systems used in today's industrial equipment. |
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