SIFT BEARING STORE CATALOG

KL507949-L507910FAGTapered Roller

KL507949-L507910 is a FAG tapered roller bearing, bore 57.15 mm, O.D. 87.31 mm, width 18.26 mm. Dimensions, drawing, interchanges and price.

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Bore d57.15mm
Outside dia. D87.31mm
Width B18.26mm
Dynamic Cr56kN
Static C0r88kN
Limiting speed8,100rpm
Weight0.418kg
Cr / C0r0.64
Mean dia. dm72.2mm

Original catalogue drawing - FAG Schaeffler HR 1, page 622

KL507949-L507910 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. D87.31 mmBore d57.15 mmWidth B18.26 mmCup width C14.29 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 diameter57.152.25
DOutside diameter87.3123.4375
BInner-ring / bearing width18.2580.7188
TOverall assembly width18.2580.7188
CCup / outer-ring width14.2880.5625

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)57.15
Outside dia. D (mm)87.312
Width B (mm)18.258
Overall width T (mm)18.258
Cup width C (mm)14.288
Inner-ring OD d1 (mm)73.9

Load ratings & speeds

Basic dynamic load rating Cr (lbs)12589
Basic static load rating Cor (lbs)19783
Basic dynamic load rating Cr (N)56000
Basic static load rating C0r (N)88000
Basic dynamic axial rating Ca (N)2
Fatigue limit load Cur (N)10400
Factor e0.39
Factor Y1.54
Factor Y00.85
Limiting speed nG (rpm)8,100
Effective load centre a (mm)17

Weight

Weight (kg)0.418

Mounting dimensions (fillets / shoulders)

Chamfer r2 min (mm)1.5
Shaft shoulder da (mm)62
Shaft shoulder db (mm)65
Housing shoulder Da (mm)79
Housing shoulder Db (mm)83
Housing fillet ra max (mm)1.5
Fillet rb max (mm)1.5

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 2,700 rpm
414,000102627
69,3333922,423
87,0001,0246,321
105,6002,15413,299
153,7338,32351,379

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 56,000 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.622 (dimensions)

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

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
L507949/L507910TimkenTapered Roller57.1587.3118.2662.7 kN0.39

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
K33225-33462FAGTapered Roller57.15117.4730.16124 kN1.62
K387-382-AFAGTapered Roller57.1596.8421.9576 kN0.593
K387-A-382FAGTapered Roller57.1598.4221.9576 kN0.637
K387-A-382-AFAGTapered Roller57.1596.8421.9576 kN0.59
K387-A-382-SFAGTapered Roller57.1596.8421.9576 kN0.66
K39580-39520FAGTapered Roller57.15112.7130.16137 kN1.41
K39580-39528FAGTapered Roller57.15119.9830.16137 kN1.76
K39581-39520FAGTapered Roller57.15112.7130.16137 kN1.42

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