SIFT BEARING STORE CATALOG

6308-2RSRFAGBall

6308-2RSR is a FAG ball bearing, bore 40 mm, O.D. 90 mm, width 23 mm, dynamic rating 42.5 kN. Dimensions, drawing, interchanges and price.

Sealed both sides
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Bore d40mm
Outside dia. D90mm
Width B23mm
Dynamic Cr42.5kN
Static C0r25kN
Limiting speed5,000rpm
Weight0.654kg
Cr / C0r1.7
Mean dia. dm65mm

Original catalogue drawing - FAG Schaeffler HR 1, page 206

6308-2RSR FAG Ball 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. D90 mmBore d40 mmWidth B23 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 diameter401.5748
DOutside diameter903.5433
BInner-ring / bearing width230.9055
rChamfer (min)1.50.0591

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)40
Outside dia. D (mm)90
Width B (mm)23
Inner-ring OD d1 (mm)55.6
Seal outside dia. D2 (mm)76.5

Load ratings & speeds

Basic dynamic load rating Cr (lbs)9554
Basic static load rating Cor (lbs)5620
Basic dynamic load rating Cr (N)42500
Basic static load rating C0r (N)25000
Fatigue limit load Cur (N)1640
Limiting speed nG (rpm)5,000

Weight

Weight (kg)0.654

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)1.5
Shaft shoulder da (mm)49
Housing shoulder Da (mm)81
Housing fillet ra max (mm)1.5

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 1,600 rpm
410,62564667
67,0832162,250
85,3125125,333
104,2501,00010,417
152,8333,37535,156

Basic rating life per ISO 281: L10 = (C/P)3 with C = 42,500 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.206 (dimensions)

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

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
1308NSKBall4090236,520 lbs0.744
6308NSKBall4090239,160 lbs0.635
7308BNSKBall4090239,480 lbs0.658
BL308NSKBall40902312,300 lbs0.667
308NSKCylindrical Roller40902313,200 lbs0.653
NU308ENSKCylindrical Roller409023102 kN0.747
21308EAE4NSKSpherical Roller409023118 kN0.73
HR30308NSKTapered Roller409023111 kN0.758
HR30308CNSKTapered Roller40902319,000 lbs0.717
HR30308JNSKTapered Roller40902320,300 lbs0.757

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
1308-K-TVH-C3FAGBall40902330 kN0.698
1308-TVHFAGBall40902330 kN0.708
6308FAGBall40902342.5 kN0.64
6308-2ZFAGBall40902342.5 kN0.654
6308-CFAGBall40902347 kN0.6
6308-C-2BRSFAGBall40902347 kN0.654
6308-C-2HRSFAGBall40902347 kN0.622
6308-C-2ZFAGBall40902347 kN0.617

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
6308FAGBall40902342.5 kN0.64
6308-2ZFAGBall40902342.5 kN0.654
6308-CFAGBall40902347 kN0.6
6308-C-2BRSFAGBall40902347 kN0.654
6308-C-2HRSFAGBall40902347 kN0.622
6308-C-2ZFAGBall40902347 kN0.617

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
11208-TVHFAGBall40801819.4 kN0.722
1208-K-TVH-C3FAGBall40801819.4 kN0.408
1208-TVHFAGBall40801819.4 kN0.414
1308-K-TVH-C3FAGBall40902330 kN0.698
1308-TVHFAGBall40902330 kN0.708
16008FAGBall4068913.2 kN0.12
2208-2RS-TVHFAGBall40802319.4 kN0.528
2208-K-2RS-TVH-C3FAGBall40802319.4 kN0.517

Request a quotation for 6308-2RSR

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.