SIFT BEARING STORE CATALOG

KHM212049-HM212011FAGTapered Roller

KHM212049-HM212011 is a FAG tapered roller bearing, bore 66.67 mm, O.D. 122.24 mm, width 38.35 mm. Dimensions, drawing, interchanges and price.

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Bore d66.67mm
Outside dia. D122.24mm
Width B38.35mm
Dynamic Cr193kN
Static C0r255kN
Limiting speed5,800rpm
Weight1.93kg
Cr / C0r0.76
Mean dia. dm94.5mm

Original catalogue drawing - FAG Schaeffler HR 1, page 624

KHM212049-HM212011 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. D122.24 mmBore d66.67 mmWidth B38.35 mmCup width C29.72 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 diameter66.6752.625
DOutside diameter122.2384.8125
BInner-ring / bearing width38.3541.51
TOverall assembly width38.11.5
CCup / outer-ring width29.7181.17

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)66.675
Outside dia. D (mm)122.238
Width B (mm)38.354
Overall width T (mm)38.1
Cup width C (mm)29.718
Inner-ring OD d1 (mm)91.5

Load ratings & speeds

Basic dynamic load rating Cr (lbs)43388
Basic static load rating Cor (lbs)57326
Basic dynamic load rating Cr (N)193000
Basic static load rating C0r (N)255000
Basic dynamic axial rating Ca (N)4
Fatigue limit load Cur (N)32000
Factor e0.34
Factor Y1.78
Factor Y00.98
Limiting speed nG (rpm)5,800
Effective load centre a (mm)27

Weight

Weight (kg)1.93

Mounting dimensions (fillets / shoulders)

Chamfer r2 min (mm)3.6
Shaft shoulder da (mm)75.5
Shaft shoulder db (mm)82
Housing shoulder Da (mm)108
Housing shoulder Db (mm)116
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 1,900 rpm
448,250102891
632,1673923,443
824,1251,0248,982
1019,3002,15418,899
1512,8678,32373,013

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 193,000 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.624 (dimensions)

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

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
HM212049/HM212010TimkenTapered Roller66.67122.2438.35267 kN1.85
HM212049/HM212011TimkenTapered Roller66.67122.2438.35267 kN1.85
HM212049X/HM212010TimkenTapered Roller66.67122.2438.35267 kN1.84

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
KHM212049-HM212010FAGTapered Roller66.67122.2438.35193 kN1.93

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
KHM212049-HM212010FAGTapered Roller66.67122.2438.35193 kN1.93

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
K395-A-394-AFAGTapered Roller66.671102286 kN0.855
K395-S-394-AFAGTapered Roller66.671102286 kN0.801
K39590-39520FAGTapered Roller66.67112.7130.16137 kN1.2
K3984-3920FAGTapered Roller66.67112.7130.05119 kN1.31
K3994-3920FAGTapered Roller66.67112.7130.05119 kN1.31
KH414242-H414210-XLFAGTapered Roller66.67136.5341.27270 kN2.77
AK6379-6320FAGTapered Roller65.09135.7556.01275 kN3.74
K399-A-394-AFAGTapered Roller68.261102286 kN0.781

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