cilindrical roller bearings applications · 2013. 11. 18. · cemento grinding roller bearings trb...
TRANSCRIPT
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CILINDRICAL ROLLER BEARINGS
ApplicationsApplications
Common Applications
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CRB Applications
• Common in many industrial applications where radial loads are prevalent
CastersFlat and Long Product Rolling Mills
Casters
Coal Pulverizer WheelsSlurry Pumps
Mud Pumps
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Metals - Continuous Caster
� Slab leaves mold and travels down [sometimes through a bender] to the Bow and Straightener sections
� At the bottom of the caster, continuous bar cut int o separate bars by a gas torch
Bow
3
BowSection
StraightenerSectionCut-off
Torch
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Metals - Continuous Caster
Ladle Turret � Cylindrical, spherical, taper and ball thrust beari ngs
up to 1200 mm (47.25 in) bore� Radial cylindrical and spherical bearings
Mold Oscillator � Spherical, taper and cylindrical bearings with heav y
duty cages and tight tolerances
Strand Segments
4
Strand Segments� Drive rolls:
Spherical and cylindrical roller, split spherical, or split cylindrical roller bearingsWater cooled split housings
� Idler rolls: Needle, spherical and cylindrical roller bearings
Drive Roll
IdlerRolls
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One Piece Drive Roll
Continuous Caster - Segment Rolls
Segmented Idler Rolls
For End Positions
For Center Positions
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Typical Plate Mill Configuration – Back-up Roll
TDI4 row CRB
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Radial bearing 4-row CRBOpen or Sealed (bore 140-400mm)
Axial bearing
Typical Bar Mill Configuration – Work Roll
Axial bearing TTDWK
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Aridos – Machacadora de Cono
� Upper radial bearing: CRB� Lower radial bearing: CRB� Upper thrust bearing: Thrust
TRB(TTVF type)
� Lower thrust bearing: Thrust CRB(TP type)
� Pinion shaft: � Pinion shaft: TRB(TS type)
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Aridos- Criba Horizontal
� Reciprocating action� Uses multiple shafts with two
bearings per shaft
Low Head Screen Bearing Assembly (CRBs)Assembly (CRBs)
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CementoGrinding Roller Bearings
� TRB in fixed� CRB in float
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Construction – Front End Loader
� N style CRB’s Outboard planetary
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Construction – Vibratory Compactors
� NU style CRB’s with HJ rings for incidental axial contact
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Mining Applications
Swing Arms
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Swing Gear Train
14
Lower swing bearing
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Continuous Miner
� CRB’s planetary � CRB’s at drum positions as opposed
to TRB’s� TRB’s at spiral bevel gear
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Longwall Shears
� Motor Input� TRB’s Cutter head� NJ CRB’s Idlers� CRB planets
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Pulverizer Wheels
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Mud Pump
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Mud Pump
� Crank - Eccentric– Fractured Cylindrical
� Pinion/Crank - Support– TRB, CRB, SRB
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Gearbox
Pitch DriveRotor
Bearing
Wind Turbines
Azimuth Drive
Azimuth Bearing
Gearbox
Pitch Bearing
Generator
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Wind Turbines – Gear Drive
� NJ CRB’s Carriers
� NJ CRB’s Planets
� NU high speed output
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Slurry Pump
� Tandem Ball Bearing Fix Position� CRB Float Position
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Slurry Pump
� NU Style Float Position
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Gear Drives
� Float N Style CRB opposite input TRB Fixed
� N Style CRB on Output with Herringbone Drive
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