SIFT BEARING STORE CATALOG

23988-K-MBFAGSpherical Roller

23988-K-MB is a FAG spherical roller bearing, bore 440 mm, O.D. 600 mm, width 118 mm. Dimensions, drawing, interchanges and price.

Tapered boreBrass cage
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Bore d440mm
Outside dia. D600mm
Width B118mm
Dynamic Cr2230kN
Static C0r5200kN
Limiting speed1,130rpm
Weight98.3kg
Cr / C0r0.43
Mean dia. dm520mm

Original catalogue drawing - FAG Schaeffler HR 1, page 766

23988-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. D600 mmBore d440 mmWidth B118 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 diameter44017.3228
DOutside diameter60023.622
BInner-ring / bearing width1184.6457
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)440
Outside dia. D (mm)600
Width B (mm)118
Inner-ring shoulder dia. D1 (mm)552.8

Load ratings & speeds

Basic dynamic load rating Cr (lbs)501324
Basic static load rating Cor (lbs)1169007
Basic dynamic load rating Cr (N)2.23e+06
Basic static load rating C0r (N)5.2e+06
Fatigue limit load Cur (N)295000
Factor e0.18
Factor Y03.58
Limiting speed nG (rpm)1,130
Effective load centre a (mm)6.5

Weight

Weight (kg)98.3

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)4
Shaft shoulder da (mm)454.6
Shaft shoulder db (mm)454
Housing shoulder Da (mm)585.4
Housing fillet ra max (mm)3

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 300 rpm
4557,5001025,644
6371,66739221,805
8278,7501,02456,889
10223,0002,154119,691
15148,6678,323462,415

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 2,230,000 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
23988CAME4NSKSpherical Roller440600118490,000 lbs96.071

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
23988-MBFAGSpherical Roller4406001182230 kN101

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
23988-MBFAGSpherical Roller4406001182230 kN101

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
23088-BEA-XL-K-MB1FAGSpherical Roller4406501573950 kN176
23088-BEA-XL-MB1FAGSpherical Roller4406501573950 kN182
23188-BEA-XL-K-MB1FAGSpherical Roller4407202266200 kN358
23188-BEA-XL-MB1FAGSpherical Roller4407202266200 kN370
23288-BEA-XL-K-MB1FAGSpherical Roller4407902808300 kN592
23288-BEA-XL-MB1FAGSpherical Roller4407902808300 kN610
24088-BEA-XL-K30-MB1FAGSpherical Roller4406502125100 kN238
24088-BEA-XL-MB1FAGSpherical Roller4406502125100 kN243

Request a quotation for 23988-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