SIFT BEARING STORE CATALOG

K72200-72487FAGTapered Roller

K72200-72487 is a FAG tapered roller bearing, bore 50.8 mm, O.D. 123.83 mm, width 32.79 mm. Dimensions, drawing, interchanges and price.

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Bore d50.8mm
Outside dia. D123.83mm
Width B32.79mm
Dynamic Cr135kN
Static C0r148kN
Limiting speed5,600rpm
Weight2.18kg
Cr / C0r0.91
Mean dia. dm87.3mm

Original catalogue drawing - FAG Schaeffler HR 1, page 494

K72200-72487 FAG Tapered Roller bearing catalogue drawing

Scanned from the manufacturer catalogue page listing this part number. All part numbers printed on that table share the same drawing.

Scale cross-section

DdBOutside dia. D123.83 mmBore d50.8 mmWidth B32.79 mmCup width C25.4 mm

Blue = inner / outer ring, yellow = rolling element. Drawn to scale from this part's own dimensions for selection reference only - not a manufacturing or assembly drawing.

Dimension table (mm / inch)

SymbolDimensionmminch
dBore diameter50.82
DOutside diameter123.8254.875
BInner-ring / bearing width32.7911.291
TOverall assembly width36.5121.4375
CCup / outer-ring width25.41

Notes

Weights are given in kg. Load ratings are shown in both the original catalogue units and the converted value (1 N = 0.2248 lbf). Data is provided for selection reference only - confirm against the latest official catalogue before ordering.

Main dimensions

Bore d (mm)50.8
Outside dia. D (mm)123.825
Width B (mm)32.791
Overall width T (mm)36.512
Cup width C (mm)25.4
Inner-ring OD d1 (mm)86.8

Load ratings & speeds

Basic dynamic load rating Cr (lbs)30349
Basic static load rating Cor (lbs)33272
Basic dynamic load rating Cr (N)135000
Basic static load rating C0r (N)148000
Basic dynamic axial rating Ca (N)3.5
Fatigue limit load Cur (N)17800
Factor e0.74
Factor Y0.81
Factor Y00.45
Limiting speed nG (rpm)5,600
Effective load centre a (mm)38

Weight

Weight (kg)2.18

Mounting dimensions (fillets / shoulders)

Chamfer r2 min (mm)3.5
Shaft shoulder da (mm)67
Shaft shoulder db (mm)79
Housing shoulder Da (mm)102
Housing shoulder Db (mm)116
Housing fillet ra max (mm)3.5
Fillet rb max (mm)3.3

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 1,800 rpm
433,750102941
622,5003923,634
816,8751,0249,481
1013,5002,15419,948
159,0008,32377,069

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 135,000 N. Hours = L10 x 106 / (60n). Life-modification factors for lubrication, contamination and temperature (aISO) are not included.

Source & traceability

BrandFAG
Source catalogueFAG / Schaeffler Rolling Bearings HR 1
Catalogue pagep.494 (dimensions)

Load ratings in newtons, fatigue limit load Cur, limiting speed nG and reference speed nB.

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
72200/72487TimkenTapered Roller50.8123.8332.79-2.01
72200C/72487TimkenTapered Roller50.8123.8332.79214 kN2.12
72201C/72487TimkenTapered Roller50.8123.8332.79214 kN2.12

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
K33889-33822FAGTapered Roller50.895.2528.57107 kN0.861
K368-362-AFAGTapered Roller50.888.922.2372 kN0.516
K368-A-362-AFAGTapered Roller50.888.922.2372 kN0.555
K3780-3720FAGTapered Roller50.893.2630.3104 kN0.89
K45284-45220FAGTapered Roller50.8104.7830.96126 kN1.25
K4580-4535FAGTapered Roller50.8104.7840.16159 kN1.67
K537-532-XFAGTapered Roller50.8107.9536.96146 kN1.69
KHM807046-HM807010FAGTapered Roller50.8104.7836.51145 kN1.64

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