SIFT BEARING STORE CATALOG

K687-672-XLFAGTapered Roller

K687-672-XL is a FAG tapered roller bearing, bore 101.6 mm, O.D. 168.28 mm, width 41.27 mm. Dimensions, drawing, interchanges and price.

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Bore d101.6mm
Outside dia. D168.28mm
Width B41.27mm
Dynamic Cr265kN
Static C0r350kN
Limiting speed4,550rpm
Weight3.42kg
Cr / C0r0.76
Mean dia. dm134.9mm

Original catalogue drawing - FAG Schaeffler HR 1, page 628

K687-672-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. D168.28 mmBore d101.6 mmWidth B41.27 mmCup width C30.16 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 diameter101.64
DOutside diameter168.2756.625
BInner-ring / bearing width41.2751.625
TOverall assembly width41.2751.625
CCup / outer-ring width30.1621.1875

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)101.6
Outside dia. D (mm)168.275
Width B (mm)41.275
Overall width T (mm)41.275
Cup width C (mm)30.162
Inner-ring OD d1 (mm)133.5

Load ratings & speeds

Basic dynamic load rating Cr (lbs)59574
Basic static load rating Cor (lbs)78683
Basic dynamic load rating Cr (N)265000
Basic static load rating C0r (N)350000
Basic dynamic axial rating Ca (N)7
Fatigue limit load Cur (N)53000
Factor e0.47
Factor Y1.28
Factor Y00.7
Limiting speed nG (rpm)4,550
Effective load centre a (mm)38

Weight

Weight (kg)3.42

Mounting dimensions (fillets / shoulders)

Chamfer r2 min (mm)3.6
Shaft shoulder da (mm)112
Shaft shoulder db (mm)118
Housing shoulder Da (mm)149
Housing shoulder Db (mm)160
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 1,500 rpm
466,2501021,129
644,1673924,361
833,1251,02411,378
1026,5002,15423,938
1517,6678,32392,483

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 265,000 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.628 (dimensions)

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

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
687/672TimkenTapered Roller101.6168.2841.27265 kN3.38
687/672ATimkenTapered Roller101.6168.2841.27265 kN3.46

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
30220-AFAGTapered Roller10018034250 kN3.75
30220-A-DF-A180-220FAGTapered Roller100180None430 kN7.82
30220-A-DF-A220-270FAGTapered Roller100180None430 kN7.82
30220-A-DF-A250-280FAGTapered Roller100180None430 kN7.82
30220-XLFAGTapered Roller10018034295 kN3.76
30320-AFAGTapered Roller10021547420 kN8.3
31320-XFAGTapered Roller10021551385 kN8.81
32020-XFAGTapered Roller10015032174 kN1.94

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