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When it comes to industrial rubber rollers, R2R Engineering is your source. Their custom-made products are engineered to withstand the rigors of industrial use. We offer many configurations for your applications, including straight and crowned geometry, grooved or knurled hear to add grip strength, and hardware options for bolts, nuts, and set screws. Learn more about the different features and benefits of R2R rollers.

Impact of Roller Bending Deformation on Nip Pressure

The nip pressure is the force used to maintain a smaller intermediate roller against axial bending. The nip pressure is determined by the radial profile of the roller and the shell thickness to diameter ratio. In finite element simulations, the roller surface at the nip point has a flexural rigidity of 1800 lb-in and a shell thickness of 0.025 inches. This is defined as the product of material elastic modulus and shell thickness cubed, and is equal to the difference between Poisson's ratio and a square root of the material's mass.

The nip pressure is applied to a thin walled outer shell at an average force of 250 psi. This average pressure acts on a localized region parallel to the axis of rotation. The gradient pressure profile is 15 psi to 20 psi. The resultant nip pressure is the net difference between the applied and unapplied forces.

Impact of Roller Encapsulation on Fatigue Reliability

A thorough study of the fatigue reliability of R2R Engineering industrial rubber rolling bearings revealed that the design of encapsulated bearings enhances the wear-resistance of the component. This study further identified the key factors that affect the fatigue reliability of these bearings. The encapsulation material enables the encapsulation to maintain its integrity in adverse conditions, especially during high-load operation. In addition, it reduces the fouling effects of a roller in high-temperature environments.

Impact of Roller Bending Deformation on Waviness Error

The typical mode of bending is a curvature around the straight-line radius. The bending process generates a gradient of strains along the fabric thickness, with maximum outer fiber tension occurring on the outermost surface. The neutral axis of a curve is the nearest to the bend axis, and there is no strain along the curve's plane. Edge effects are not considered here, but they can be a contributing factor.

Influence of Chip Rigidity and Thickness on Fatigue Reliability

There are a number of benefits to the R2R fabricated wiring lines, including enhanced mechanical robustness and corrosion resistance. These benefits were demonstrated through a series of fatigue reliability tests, and this research highlights these benefits. The work was performed by a team of scientists from China, including Guo, X., Leung, A. Y. T., Chen, A., and Lu, J.

Moreover, it was discovered that the influence of chip rigidity and thickness on fatigue reliability was enhanced by combining the properties of the material and the surface hardness. The results indicate that the R2R engineering industrial rubber rollers are resistant to both high and low temperatures. They are available in live and dead-shaft options, as well as in custom applications. They feature a variety of coating options, including zinc and nickel, which reduce fouling.

The metallisation of polyimide foils was achieved through semi-additive metallisation. The resultant structure (Figure 7) shows a double-sided, metallised polyimide foil. The process was performed using a galvanometer scanner and a laser-drilled via hole. The drilled via holes are not cylindrical, but rather have a slope of 50deg.

 

R2R Engineering

R2R Engineering

R2R Engineering

R2R Engineering

 

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