Super Smart Ball Bushing Bearing - Hollin Applications

FluoroNyliner*Phone: 1-800-554-8466Website: www.thomsonballbushing.comFrictional Characteristics:I) Static: Tests performed on dry FNYBU-16bearings indicate that the force required toinitiate motion is dependent upon the appliedload according to the following equation:F f = 1.3 + 0.18 F aWhere:F f = Friction force, static (lbf)F a = Applied force (lbf)II)CharacteristicLiner TemperatureRangeVelocity, dryVelocity, dryVelocity, lubricatedPressurePVLimit-400˚ F to 550˚ F(-240˚ C to 288˚ C)140 ft/min. Continuous400 ft/min. Intermittent400 ft/min. Continuous1500 psi10,000 psi ft/minDynamic: The coefficient of friction is dependent upon both the pressure and the velocity.Pressure: Coefficient of friction decreases rapidly with increase in pressure.Velocity: Coefficient of friction increases with an increase in velocity, and quickly stabilizes.For example, at 100 psi, the coefficient of friction is approximately 0.25 for velocities of100ft/min and higher.COEFFICIENT OF FRICTION VS. LOAD(AT LOW SPEEDS)COEFFICIENT OF FRICTION VS. SPEED(AT 100 P.S.I.)COEFFICIENT OF FRICTION ()COEFFICIENT OF FRICTION ()LOAD (PSI)SLIDING SPEED (S.F.P.M.)Wear Rates and Life Expectancy:I) Wear rates: The wear rates of a plain bearing are dependent upon a number of variables, includingcharacteristics of the counter-face, velocity, lubrication, load and contamination. Tests conducted onFNYBU-16 bearings operating in the linear mode at approximately 70 ft/min, and at a pressure ofapproximately 33 psi, demonstrated an average radial wear change of 0.0011 inches, after 80 millioninches of travel. This yields the following formula:Where:W R = 14x(10 -6 )xTW R = Radial Wear (micro-inches)T = Travel (inches)II)Life expectancy: The life expectancy may be calculated from the wear rate. This is normallyassociated with the allowable radial clearance for a given application. The absolute wear limit isthe bearing material thickness, which is 0.028 inches.Page 124©2003 Danaher Motion. Printed in the U.S.A. The specifications in this publication are believed to be accurate and reliable.However, it is the responsibility of the product user to determine the suitability of Thomson products for a specific application.While defective products will be replaced without charge if promptly returned, no liability is assumed beyond such replacement.* Trademark of Danaher Motion. DANAHER MOTION is registered in the U.S. Patent and Trademark Office and in other countries.