SIFT BEARING STORE CATALOG

K39581-39520FAGTapered Roller

K39581-39520 is a FAG tapered roller bearing, bore 57.15 mm, O.D. 112.71 mm, width 30.16 mm. Dimensions, drawing, interchanges and price.

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Bore d57.15mm
Outside dia. D112.71mm
Width B30.16mm
Dynamic Cr137kN
Static C0r192kN
Limiting speed6,200rpm
Weight1.42kg
Cr / C0r0.71
Mean dia. dm84.9mm

Original catalogue drawing - FAG Schaeffler HR 1, page 622

K39581-39520 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. D112.71 mmBore d57.15 mmWidth B30.16 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 diameter57.152.25
DOutside diameter112.7124.4375
BInner-ring / bearing width30.1621.1875
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)57.15
Outside dia. D (mm)112.712
Width B (mm)30.162
Overall width T (mm)30.162
Cup width C (mm)23.812
Inner-ring OD d1 (mm)90

Load ratings & speeds

Basic dynamic load rating Cr (lbs)30799
Basic static load rating Cor (lbs)43163
Basic dynamic load rating Cr (N)137000
Basic static load rating C0r (N)192000
Basic dynamic axial rating Ca (N)6
Fatigue limit load Cur (N)23800
Factor e0.34
Factor Y1.77
Factor Y00.97
Limiting speed nG (rpm)6,200
Effective load centre a (mm)24

Weight

Weight (kg)1.42

Mounting dimensions (fillets / shoulders)

Chamfer r2 min (mm)7.9
Shaft shoulder da (mm)66
Shaft shoulder db (mm)81
Housing shoulder Da (mm)101
Housing shoulder Db (mm)107
Housing fillet ra max (mm)7.9
Fillet rb max (mm)3.3

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 2,000 rpm
434,250102847
622,8333923,271
817,1251,0248,533
1013,7002,15417,954
159,1338,32369,362

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 137,000 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
39580/39520TimkenTapered Roller57.15112.7130.16167 kN1.38
39580/39521TimkenTapered Roller57.15112.7130.16167 kN1.38
39581/39520TimkenTapered Roller57.15112.7130.16167 kN1.37

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
K39580-39520FAGTapered Roller57.15112.7130.16137 kN1.41

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
K3979-3920FAGTapered Roller57.15112.7130.05119 kN1.44

Request a quotation for K39581-39520

Send us the quantity you need and we will come back with price and lead time, normally within 24 hours. Equivalent parts from other brands can be quoted at the same time.