SIFT BEARING STORE CATALOG

K25877-25821-XLFAGTapered Roller

K25877-25821-XL is a FAG tapered roller bearing, bore 34.92 mm, O.D. 73.03 mm, width 24.61 mm. Dimensions, drawing, interchanges and price.

X-life
Request a quoteEmail usSearch the catalog
Bore d34.92mm
Outside dia. D73.03mm
Width B24.61mm
Dynamic Cr78kN
Static C0r78kN
Limiting speed11,400rpm
Weight0.462kg
Cr / C0r1
Mean dia. dm54mm

Original catalogue drawing - FAG Schaeffler HR 1, page 614

K25877-25821-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. D73.03 mmBore d34.92 mmWidth B24.61 mmCup width C19.05 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 diameter34.9251.375
DOutside diameter73.0252.875
BInner-ring / bearing width24.6080.9688
TOverall assembly width23.8120.9375
CCup / outer-ring width19.050.75

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)34.925
Outside dia. D (mm)73.025
Width B (mm)24.608
Overall width T (mm)23.812
Cup width C (mm)19.05
Inner-ring OD d1 (mm)53.9

Load ratings & speeds

Basic dynamic load rating Cr (lbs)17535
Basic static load rating Cor (lbs)17535
Basic dynamic load rating Cr (N)78000
Basic static load rating C0r (N)78000
Basic dynamic axial rating Ca (N)5
Fatigue limit load Cur (N)12400
Factor e0.29
Factor Y2.07
Factor Y01.14
Limiting speed nG (rpm)11,400
Effective load centre a (mm)16

Weight

Weight (kg)0.462

Mounting dimensions (fillets / shoulders)

Chamfer r2 min (mm)1.5
Shaft shoulder da (mm)43
Shaft shoulder db (mm)46
Housing shoulder Da (mm)62
Housing shoulder Db (mm)67
Housing fillet ra max (mm)1.5
Fillet rb max (mm)0.8

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 3,000 rpm
419,500102564
613,0003922,181
89,7501,0245,689
107,8002,15411,969
155,2008,32346,241

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 78,000 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.614 (dimensions)

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

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
25877/25821NSKTapered Roller34.9273.0324.6116,000 lbs0.467
25877/25820TimkenTapered Roller34.9273.0324.6185.1 kN0.47
25877/25821TimkenTapered Roller34.9273.0324.6185.1 kN0.48
25877A/25821TimkenTapered Roller34.9273.0324.6185.1 kN0.48
25878/25820TimkenTapered Roller34.9273.0324.6185.1 kN0.46
25878/25821TimkenTapered Roller34.9273.0324.6185.1 kN0.47

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
K31594-31520FAGTapered Roller34.9276.228.5777 kN0.636
K3478-3420FAGTapered Roller34.9279.3829.7790 kN0.785
KHM88649-HM88610FAGTapered Roller34.9272.2325.469 kN0.5
KHM89446-HM89410FAGTapered Roller34.9276.228.5779 kN0.664
KLM48548-A-LM48510FAGTapered Roller34.9265.0918.2946.5 kN0.261
KLM48548-LM48510FAGTapered Roller34.9265.0918.2945.5 kN0.273
KLM48549-X-LM48510FAGTapered Roller34.9265.0918.2946.5 kN0.278
KL68149-L68110FAGTapered Roller34.9959.1316.7633 kN0.171

Request a quotation for K25877-25821-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.