SIFT BEARING STORE CATALOG

K355-X-352FAGTapered Roller

K355-X-352 is a FAG tapered roller bearing, bore 44.45 mm, O.D. 90.12 mm, width 21.69 mm. Dimensions, drawing, interchanges and price.

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Bore d44.45mm
Outside dia. D90.12mm
Width B21.69mm
Dynamic Cr74kN
Static C0r86kN
Limiting speed8,800rpm
Weight0.694kg
Cr / C0r0.86
Mean dia. dm67.3mm

Original catalogue drawing - FAG Schaeffler HR 1, page 618

K355-X-352 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. D90.12 mmBore d44.45 mmWidth B21.69 mmCup width C21.81 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 diameter44.451.75
DOutside diameter90.1193.548
BInner-ring / bearing width21.6920.854
TOverall assembly width230.9055
CCup / outer-ring width21.8080.8586

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)44.45
Outside dia. D (mm)90.119
Width B (mm)21.692
Overall width T (mm)23
Cup width C (mm)21.808
Inner-ring OD d1 (mm)63.2

Load ratings & speeds

Basic dynamic load rating Cr (lbs)16636
Basic static load rating Cor (lbs)19334
Basic dynamic load rating Cr (N)74000
Basic static load rating C0r (N)86000
Basic dynamic axial rating Ca (N)2
Fatigue limit load Cur (N)10200
Factor e0.31
Factor Y1.96
Factor Y01.08
Limiting speed nG (rpm)8,800
Effective load centre a (mm)18

Weight

Weight (kg)0.694

Mounting dimensions (fillets / shoulders)

Chamfer r2 min (mm)3.6
Shaft shoulder da (mm)50
Shaft shoulder db (mm)56
Housing shoulder Da (mm)78
Housing shoulder Db (mm)82
Housing fillet ra max (mm)3.6
Fillet rb max (mm)2.3

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 2,900 rpm
418,500102584
612,3333922,256
89,2501,0245,885
107,4002,15412,382
154,9338,32347,836

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 74,000 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.618 (dimensions)

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

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
355/352TimkenTapered Roller44.4590.1221.69-0.67
355X/352TimkenTapered Roller44.4590.1221.6997 kN0.66

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
AK33885-33822-XLFAGTapered Roller44.4595.2528.57131 kN1
K25581-25520FAGTapered Roller44.4582.9325.481 kN0.561
K3782-3720-XLFAGTapered Roller44.4593.2630.3123 kN0.976
K49175-49368FAGTapered Roller44.4593.6631.75109 kN1.02
K49576-49520FAGTapered Roller44.45101.631.75108 kN1.27
K535-532-AFAGTapered Roller44.45111.1236.96146 kN1.88
KHM803149-HM803110FAGTapered Roller44.4588.929.3793 kN0.86
KHM804842-HM804810FAGTapered Roller44.4595.2529.37111 kN1.13

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