Slide bearings - Wolf Kunststoff-Gleitlager GmbH

CCCCt max. [s]LCCin which:pv nomzul= permissible nominal pv-value taken fromill.2 2 [N/mm * m/min]pv100.000,010.000,01.000,0100,010,01,00,10,1 1,0 10,0kpv nompv nomzul[14]pvkpv= pv-value taken from equation 11 [N/mm * m/min]Ill.23: Max. permissible transit time t LmaxThe correction factor f can be calculated according toformula (15), so that the corrected pv-value can becalculated according to formula (14).2f = 0,02 • ED - (0,0001 • ED )in which:Σ tEDL [s]Σ t L + Σ t P [s]tL = taken from ill .2 1t P = taken from ill.21•100 [%]12.2.1.2 Permissible pv-value (pv zul) ot theradial slide bearingThe permissible pv-value of a radial slide bearing canbe calculated according to formula (17).pv zulpv nomzul • k sch • k ϑ • k Geo • kSpin which:[16]Permissible pv-value[17]k = correction factor for lubrication taken from 12.2.1.2.1s chpv = permissible nominal pv-value [N/mm 2 • m/min] takenn omz ulfrom ill. 22k Ge o = correction factor for geometry taken from 12.2.1.2.3k S p= correction factor for bearing clearance taken from12.2.1.2.4[15]12.2.1.2.1. Correction factor for lubrication k SchThe correction factor for lubrication k Schcan be takenfrom ill. 24 in accordance with the sliding speed and thelubricant.correction factor k schIll. 24: Correction factor k sch12.2.1.2.2. Correction factor for ambient temperatureThe correction factor considers an ambient temperaturedeviating from 20°C for bushings which should be fixedinto the casing hole by means of simple pressing. Forbushing which are not pressed in (e.g. swimmingor bonding bushings) the correction factor kJ isalways = 1.The correction factor kϑ can be taken from ill. 25 in functionof the ambient temperature with a respective material.Ill. 25: Correction factor kϑWolf Kunststoff-Gleitlager GmbH • Heisenbergstr. 63 - 65 • 50169 Kerpen-Türnich • Tel. 02237/9749-0 • Fax. 02237/9749-20correction factor k ϑ1210864201,00,90,80,70,60,50,40,30,20,10,0oil lubricationgrease lubricationdry run1 10 100v [m/min]0 50 100 150 200ambient temperature [ºC]ZX-100K ,MT,EZX-100AZX-324ZX-324V1T ,V2T ,V3TZX-324VMT ZX-750V3ZX-410ZX-530ZX-550ZX-750V0ZX-750V1T ,V2T,V4PrefaceContentsMaterialoverviewIndex Slide bearings Slide bearings Conditions ofTribologyMathematical Design(with collar) (cylindrical) installationexample guidelines34