The Design of Rolling Bearing Mountings
The Design of Rolling Bearing Mountings The Design of Rolling Bearing Mountings
111: Disk plough159 FAG
112 Plane sifterSifters are used in flour mills to segregate the differentconstituents (e.g. groats, grits, flour). The plane sifterdescribed in this example consists of four sections,each comprising 12 sieves fastened to a frame. Aneccentric shaft induces circular vibrations in the framesieveassembly.Operating dataStarting power 1.1 kW, operating power 0.22 kW;speed 220...230 min –1 ; total weight of balancingmasses 5.5 kN; distance between centre of gravity ofbalancing masses and axis of rotation 250 mm; totalweight of frame and sieves plus material to be sifted20...25 kN.Bearing selectionThe drive shaft with the balancing masses is suspendedfrom the top bearing. The supporting bearing must beself-aligning in order to avoid preloading. The bearingsmounted are a self-aligning ball bearing FAG 1213(65 x 120 x 23 mm) and a thrust ball bearing FAG53214 (70 x 105 x 28,8 mm). The spherical housingwasher FAG U214 compensates for misalignmentduring mounting.The thrust bearing has to accommodate the weight ofthe drive shaft and balancing masses. The eccentricshaft of the sifter frame is supported by a spherical rollerbearing FAG 22320E.T41A. This bearing accommodatesthe high centrifugal forces resulting from thecircular throw of the sifter frame and sieves. Sleeve B isa loose fit on the eccentric shaft; thus the sphericalroller bearing is axially displaceable together with thesleeve and cannot be submitted to detrimental axialpreloading.Machining tolerances– Self-aligning ball bearing.Hollow shaft to k6, pulley bore to J6.– Spherical roller bearing.Sleeve to k6, frame housing bore to K6.LubricationThe ball bearings at the top mounting run in an oilbath. The spherical roller bearing at the bottommounting is lubricated by circulating oil. A thread cutin the eccentric shaft feeds the oil upward throughsleeve B. From the top the oil passes through thespherical roller bearing and back into the oil bath.Layout of a plane sifterFAG 160
- Page 109 and 110: 76 Rope sheave of a pulley blockIn
- Page 111 and 112: 77 Crane pillar mounting with a sph
- Page 113 and 114: 79 Roller track assemblyThe radial
- Page 115 and 116: 80 Crane run wheelOperating dataWhe
- Page 117 and 118: 81 Crane hookThe load suspended fro
- Page 119 and 120: 83 Head pulley of a belt conveyorOn
- Page 121 and 122: Internal bearings for the tension/8
- Page 123 and 124: Belt conveyor idlersMany industries
- Page 125 and 126: 87 Bucket wheel shaft of a bucket w
- Page 127 and 128: 89 Drive unit of a finished goods e
- Page 129 and 130: 91 Vibrating road rollerThe vibrati
- Page 131 and 132: 92 Double toggle jaw crusherDouble
- Page 133 and 134: 94 Double-shaft hammer crusherDoubl
- Page 135 and 136: 95 Ball tube millTube mills are mos
- Page 137 and 138: 96 Support roller of a rotary kilnR
- Page 139 and 140: Vibrating machinesVibrating screens
- Page 141 and 142: 98 Two-bearing screen with straight
- Page 143 and 144: 99 Four-bearing screenThe vibration
- Page 145 and 146: 101-103 Large capacity convertersCo
- Page 147 and 148: 104Roll bearings of afour-high cold
- Page 149 and 150: Work rolls for the finishing sectio
- Page 151 and 152: 107 Combined reduction and cogging
- Page 153 and 154: 108 Work rolls of a section millThe
- Page 155 and 156: Two-high rolls of a dressing stand1
- Page 157 and 158: 110 Straightening rolls of a rail s
- Page 159: 111 Disk ploughIn a disk plough the
- Page 163 and 164: Printing pressesPrinting quality is
- Page 165 and 166: 114 Blanket cylinder of a sheet-fed
- Page 167 and 168: 116 Axial piston machineCylinder bl
- Page 169 and 170: 117 Axial piston machineOperating d
- Page 171 and 172: 119 Hot gas fanGas temperature 150
- Page 173 and 174: 121 Optical telescopeOperating data
- Page 175 and 176: 122-124 RadiotelescopeFor radioastr
- Page 177 and 178: 123 Azimuth axis (track roller and
- Page 179 and 180: GlossaryAdditivesAdditives are oil-
- Page 181 and 182: GlossaryAxial clearanceThe axial cl
- Page 183 and 184: GlossaryContamination factor VThe c
- Page 185 and 186: GlossaryEP additivesWear-reducing a
- Page 187 and 188: Glossary1. Safe retention and unifo
- Page 189 and 190: GlossaryLoad angleThe load angle i
- Page 191 and 192: Glossaryload and the ring to be fit
- Page 193 and 194: Glossaryaligning ball bearings, bar
- Page 195 and 196: GlossaryViscosityViscosity is the m
- Page 197 and 198: NotesFAG 196
112 Plane sifterSifters are used in flour mills to segregate the differentconstituents (e.g. groats, grits, flour). <strong>The</strong> plane sifterdescribed in this example consists <strong>of</strong> four sections,each comprising 12 sieves fastened to a frame. Aneccentric shaft induces circular vibrations in the framesieveassembly.Operating dataStarting power 1.1 kW, operating power 0.22 kW;speed 220...230 min –1 ; total weight <strong>of</strong> balancingmasses 5.5 kN; distance between centre <strong>of</strong> gravity <strong>of</strong>balancing masses and axis <strong>of</strong> rotation 250 mm; totalweight <strong>of</strong> frame and sieves plus material to be sifted20...25 kN.<strong>Bearing</strong> selection<strong>The</strong> drive shaft with the balancing masses is suspendedfrom the top bearing. <strong>The</strong> supporting bearing must beself-aligning in order to avoid preloading. <strong>The</strong> bearingsmounted are a self-aligning ball bearing FAG 1213(65 x 120 x 23 mm) and a thrust ball bearing FAG53214 (70 x 105 x 28,8 mm). <strong>The</strong> spherical housingwasher FAG U214 compensates for misalignmentduring mounting.<strong>The</strong> thrust bearing has to accommodate the weight <strong>of</strong>the drive shaft and balancing masses. <strong>The</strong> eccentricshaft <strong>of</strong> the sifter frame is supported by a spherical rollerbearing FAG 22320E.T41A. This bearing accommodatesthe high centrifugal forces resulting from thecircular throw <strong>of</strong> the sifter frame and sieves. Sleeve B isa loose fit on the eccentric shaft; thus the sphericalroller bearing is axially displaceable together with thesleeve and cannot be submitted to detrimental axialpreloading.Machining tolerances– Self-aligning ball bearing.Hollow shaft to k6, pulley bore to J6.– Spherical roller bearing.Sleeve to k6, frame housing bore to K6.Lubrication<strong>The</strong> ball bearings at the top mounting run in an oilbath. <strong>The</strong> spherical roller bearing at the bottommounting is lubricated by circulating oil. A thread cutin the eccentric shaft feeds the oil upward throughsleeve B. From the top the oil passes through thespherical roller bearing and back into the oil bath.Layout <strong>of</strong> a plane sifterFAG 160