SIFT BEARING STORE CATALOG

K45284-45220FAGTapered Roller

K45284-45220 is a FAG tapered roller bearing, bore 50.8 mm, O.D. 104.78 mm, width 30.96 mm. Dimensions, drawing, interchanges and price.

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Bore d50.8mm
Outside dia. D104.78mm
Width B30.96mm
Dynamic Cr126kN
Static C0r162kN
Limiting speed6,800rpm
Weight1.25kg
Cr / C0r0.78
Mean dia. dm77.8mm

Original catalogue drawing - FAG Schaeffler HR 1, page 620

K45284-45220 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. D104.78 mmBore d50.8 mmWidth B30.96 mmCup width C23.81 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 diameter104.7754.125
BInner-ring / bearing width30.9581.2188
TOverall assembly width30.1621.1875
CCup / outer-ring width23.8120.9375

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)104.775
Width B (mm)30.958
Overall width T (mm)30.162
Cup width C (mm)23.812
Inner-ring OD d1 (mm)79.6

Load ratings & speeds

Basic dynamic load rating Cr (lbs)28326
Basic static load rating Cor (lbs)36419
Basic dynamic load rating Cr (N)126000
Basic static load rating C0r (N)162000
Basic dynamic axial rating Ca (N)4
Fatigue limit load Cur (N)20100
Factor e0.33
Factor Y1.81
Factor Y00.99
Limiting speed nG (rpm)6,800
Effective load centre a (mm)22

Weight

Weight (kg)1.25

Mounting dimensions (fillets / shoulders)

Chamfer r2 min (mm)6.4
Shaft shoulder da (mm)59
Shaft shoulder db (mm)71
Housing shoulder Da (mm)93
Housing shoulder Db (mm)99
Housing fillet ra max (mm)6.4
Fillet rb max (mm)3.3

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 2,200 rpm
431,500102770
621,0003922,973
815,7501,0247,758
1012,6002,15416,321
158,4008,32363,057

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 126,000 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.620 (dimensions)

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

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
45284/45220TimkenTapered Roller50.8104.7830.96153 kN1.19
45284/45221TimkenTapered Roller50.8104.7830.96153 kN1.19
45285/45220TimkenTapered Roller50.8104.7830.96153 kN1.22
45285/45221TimkenTapered Roller50.8104.7830.96153 kN1.22
45285A/45221TimkenTapered Roller50.8104.7830.96153 kN1.22

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
K4580-4535FAGTapered Roller50.8104.7840.16159 kN1.67
K537-532-XFAGTapered Roller50.8107.9536.96146 kN1.69
K72200-72487FAGTapered Roller50.8123.8332.79135 kN2.18
KHM807046-HM807010FAGTapered Roller50.8104.7836.51145 kN1.64

Request a quotation for K45284-45220

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