Polymer Bearings - igus® - #45

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Graph 02 and 03: Recommended pressure of iglidur® plain bearings temperature 20 40 60 80 100 120 140 160 0 20 40 60 80 100 120 20 50 80 0 20 iglidur® X iglidur® Z iglidur® K iglidur® UW500 iglidur® J350 iglidur® H iglidur® V400 iglidur® H1 iglidur® X6 iglidur® H370 iglidur® G iglidur® J3 iglidur® J iglidur® L250 iglidur® M250 iglidur® R iglidur® W300 iglidur® D iglidur® P iglidur® J200 iglidur® GLW iglidur® A180 iglidur® J260 iglidur® A200 igus® GmbH 51147 Cologne | Phone +49 (0) 22 03-9649-145 Fax -334 | www. For thrust bearings, the load is produced accordingly. Thrust bearing: In these equations: F load in N d1 bearing inner diameter in mm b1 bearing length in mm d2 outer diameter of the bearing in mm Max. Recommended Surface Pressure A comparative value of the iglidur® material is the recommended maximum static surface pressure [p] at +20 °C. The values of the individual iglidur® plain bearings differ greatly on this point. The value [p] indicates the pressure limit of a plain bearing. The plain bearing can carry this pressure permanently without damage. The given value applies to static operation; only very slow speeds up to 0.01 m/s are tolerated under this pressure. Higher pressures than those indicated are possible if the duration of the load is short. Please call us if you have questions. Material Table, page 36 Load and Temperature Graph 02 and 03 shows the recommended maximum static surface pressure [p] of the iglidur® plain bearing as a function of temperature. When using the plain bearing, the bearing temperature can be higher than the ambient temperature, due to friction. Take advantage of the opportunity presented by the predictability of the iglidur® plain bearing to record these effects in advance, or determine the effective temperatures in the test. Pressure and Speed With decreasing radial load on the plain bearing, the permissible surface speed increases. The product of the pressure [p] and speed [v] can be understood as a measurement for the frictional heat of the bearing. This relationship is shown by the pv graph that is the fi rst in the respective chapter for each iglidur® material. p = F (d22 – d 12 ) · ð 4 Surface pressure [MPa] Pressure Temperature [°C] Temperature [°C] 1 10 100 5 10 iglidur® G iglidur® P iglidur® J iglidur® V400 iglidur® W300 Wear [ìm/km] Pressure [MPa] Graph 04: Wear of iglidur® plain bearings and high pressures