SIFT BEARING STORE CATALOG

23976-K-MBFAGSpherical Roller

23976-K-MB is a FAG spherical roller bearing, bore 380 mm, O.D. 520 mm, width 106 mm. Dimensions, drawing, interchanges and price.

Tapered boreBrass cage
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Bore d380mm
Outside dia. D520mm
Width B106mm
Dynamic Cr1780kN
Static C0r4000kN
Limiting speed1,340rpm
Weight66.3kg
Cr / C0r0.45
Mean dia. dm450mm

Original catalogue drawing - FAG Schaeffler HR 1, page 766

23976-K-MB FAG Spherical 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. D520 mmBore d380 mmWidth B106 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 diameter38014.9606
DOutside diameter52020.4724
BInner-ring / bearing width1064.1732
rChamfer (min)40.1575

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)380
Outside dia. D (mm)520
Width B (mm)106
Inner-ring shoulder dia. D1 (mm)477.6

Load ratings & speeds

Basic dynamic load rating Cr (lbs)400160
Basic static load rating Cor (lbs)899236
Basic dynamic load rating Cr (N)1.78e+06
Basic static load rating C0r (N)4e+06
Fatigue limit load Cur (N)265000
Factor e7
Factor Y03.5
Limiting speed nG (rpm)1,340
Effective load centre a (mm)3.5

Weight

Weight (kg)66.3

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)4
Shaft shoulder da (mm)394.6
Shaft shoulder db (mm)393
Housing shoulder Da (mm)505.4
Housing fillet ra max (mm)3

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 400 rpm
4445,0001024,233
6296,66739216,354
8222,5001,02442,667
10178,0002,15489,768
15118,6678,323346,811

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 1,780,000 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.766 (dimensions)

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

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
23976CAME4NSKSpherical Roller380520106420,000 lbs64.773

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
23976-MBFAGSpherical Roller3805201061780 kN69.1

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
23976-MBFAGSpherical Roller3805201061780 kN69.1

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
23076-BEA-XL-K-MB1FAGSpherical Roller3805601352900 kN109
23076-BEA-XL-MB1FAGSpherical Roller3805601352900 kN114
23176-BEA-XL-2RSR-MB1FAGSpherical Roller3806201944750 kN234
23176-BEA-XL-K-MB1FAGSpherical Roller3806201944700 kN227
23176-BEA-XL-MB1FAGSpherical Roller3806201944700 kN234
23276-BEA-XL-K-MB1FAGSpherical Roller3806802406200 kN374
23276-BEA-XL-MB1FAGSpherical Roller3806802406200 kN385
24076-BEA-XL-K30-MB1FAGSpherical Roller3805601803750 kN151

Request a quotation for 23976-K-MB

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.

Online enquiry formrichard@bearingsfit.com