SIFT BEARING STORE CATALOG

K3782-3720-XLFAGTapered Roller

K3782-3720-XL is a FAG tapered roller bearing, bore 44.45 mm, O.D. 93.26 mm, width 30.3 mm. Dimensions, drawing, interchanges and price.

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Bore d44.45mm
Outside dia. D93.26mm
Width B30.3mm
Dynamic Cr123kN
Static C0r138kN
Limiting speed8,500rpm
Weight0.976kg
Cr / C0r0.89
Mean dia. dm68.9mm

Original catalogue drawing - FAG Schaeffler HR 1, page 618

K3782-3720-XL 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. D93.26 mmBore d44.45 mmWidth B30.3 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 diameter44.451.75
DOutside diameter93.2643.6718
BInner-ring / bearing width30.3021.193
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)44.45
Outside dia. D (mm)93.264
Width B (mm)30.302
Overall width T (mm)30.162
Cup width C (mm)23.812
Inner-ring OD d1 (mm)72.2

Load ratings & speeds

Basic dynamic load rating Cr (lbs)27652
Basic static load rating Cor (lbs)31024
Basic dynamic load rating Cr (N)123000
Basic static load rating C0r (N)138000
Basic dynamic axial rating Ca (N)3.5
Fatigue limit load Cur (N)22200
Factor e0.34
Factor Y1.77
Factor Y00.97
Limiting speed nG (rpm)8,500
Effective load centre a (mm)22

Weight

Weight (kg)0.976

Mounting dimensions (fillets / shoulders)

Chamfer r2 min (mm)3.6
Shaft shoulder da (mm)52
Shaft shoulder db (mm)58
Housing shoulder Da (mm)82
Housing shoulder Db (mm)88
Housing fillet ra max (mm)3.6
Fillet rb max (mm)3.3

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 2,800 rpm
430,750102605
620,5003922,336
815,3751,0246,095
1012,3002,15412,824
158,2008,32349,544

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 123,000 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
3782/3720NSKTapered Roller44.4593.2630.323,200 lbs0.957
3782/3720TimkenTapered Roller44.4593.2630.3122 kN0.97

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
AK33885-33822-XLFAGTapered Roller44.4595.2528.57131 kN1
K25581-25520FAGTapered Roller44.4582.9325.481 kN0.561
K355-X-352FAGTapered Roller44.4590.1221.6974 kN0.694
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

Request a quotation for K3782-3720-XL

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.