SIFT BEARING STORE CATALOG

K4375-4335FAGTapered Roller

K4375-4335 is a FAG tapered roller bearing, bore 38.1 mm, O.D. 90.49 mm, width 40.39 mm. Dimensions, drawing, interchanges and price.

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Bore d38.1mm
Outside dia. D90.49mm
Width B40.39mm
Dynamic Cr142kN
Static C0r185kN
Limiting speed8,000rpm
Weight1.33kg
Cr / C0r0.77
Mean dia. dm64.3mm

Original catalogue drawing - FAG Schaeffler HR 1, page 616

K4375-4335 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. D90.49 mmBore d38.1 mmWidth B40.39 mmCup width C33.34 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 diameter38.11.5
DOutside diameter90.4883.5625
BInner-ring / bearing width40.3861.59
TOverall assembly width39.6881.5625
CCup / outer-ring width33.3381.3125

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)38.1
Outside dia. D (mm)90.488
Width B (mm)40.386
Overall width T (mm)39.688
Cup width C (mm)33.338
Inner-ring OD d1 (mm)66.1

Load ratings & speeds

Basic dynamic load rating Cr (lbs)31923
Basic static load rating Cor (lbs)41590
Basic dynamic load rating Cr (N)142000
Basic static load rating C0r (N)185000
Basic dynamic axial rating Ca (N)3.5
Fatigue limit load Cur (N)23200
Factor e0.28
Factor Y2.11
Factor Y01.16
Limiting speed nG (rpm)8,000
Effective load centre a (mm)25

Weight

Weight (kg)1.33

Mounting dimensions (fillets / shoulders)

Chamfer r2 min (mm)1.5
Shaft shoulder da (mm)51
Shaft shoulder db (mm)53
Housing shoulder Da (mm)77
Housing shoulder Db (mm)85
Housing fillet ra max (mm)1.5
Fillet rb max (mm)3.3

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 2,600 rpm
435,500102651
623,6673922,516
817,7501,0246,564
1014,2002,15413,810
159,4678,32353,356

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 142,000 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.616 (dimensions)

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

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
4375/4335TimkenTapered Roller38.190.4940.39199 kN1.31

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
K3490-3420FAGTapered Roller38.179.3829.7790 kN0.677
KHM801346-HM801310FAGTapered Roller38.182.5528.5789 kN0.874
KLM29748-LM29710FAGTapered Roller38.165.0918.2944 kN0.227
KLM29749-LM29710FAGTapered Roller38.165.0918.2944 kN0.24
KLM29749-LM29711FAGTapered Roller38.165.0918.2945 kN0.275
320/38-XFAGTapered Roller38651849 kN0.252
KJL69349-JL69310FAGTapered Roller38631739.5 kN0.204
KHM89249-HM89210FAGTapered Roller36.5179.3828.8392 kN0.679

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