Для заказов: тел.8-800-707-06-93 (беспл. по РФ)

beyond anything www.kiswire.com 50 55 60 65 70 75 80 85 90 95 100 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 EFFICIENCY % STRENGTH EFFICIENCY OFWIRE ROPE WHEN BENT OVER PINS OR SHEAVES OF VARIOUS SIZES D diameter of pin (or sheave) d nominal diameter of rope = Fatigue by bending Almost any wire rope when used is bent over drums and sheaves. The number of bends (1), the types of bends (curves) (2), the load applied (3), the dimensions of the drums and sheaves (4), fleet angle, reeving arrangement, groove profile, are impacting factors on the service life of a rope. Ideal wire rope circumstances hardly exist. One shall attempt to create the best possible circumstances in order to optimize rope’s service life and performance. (1) The higher the number of bends of a rope, the higher its fatigue. (2) Counter direction bends of rope in an installation complicate the perfor- mance of a rope substantially. The higher stress in the rope caused by complicated bends, shorten its service life and performance quality. (3) The amount of load charged on a rope is of great impact on its service life. Within the maximum load allowed of 20% of the MBL of the rope, lower loading improves the fatigue life of the rope disproportionally. A 10% less loading would result in a 20% better outcome. Be aware, that other issues are of impact as well. For instance, acceleration and decele- ration (speed) of the rope. The slower the movement of a rope, the easier its going, the less risk on complications. (4) The larger the drum and sheave bends, the better the performance and the longer the service life of the rope. Kiswire is the largest wire rope producer in the world. Annually, about 140.000 tons of wire rope is delivered, worldwide. For decades, Kiswire is specializing in the development and production of wire rope. Meanwhile, the company has acquired a reputable and leading position in a great variety of markets, in literally all corners of the world. The offshore industry is one is a main market for Kiswire since 25 years, meanwhile. Technical Data Sheet 6