SIFT BEARING STORE CATALOG

2238NSKCylindrical Roller

2238 is a NSK cylindrical roller bearing, bore 190 mm, O.D. 340 mm, width 92 mm. Dimensions, drawing, interchanges and price.

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Bore d190mm
Outside dia. D340mm
Width B92mm
Dynamic Cr186,000lbs
Static C0r288,000lbs
Limiting speed1,600rpm
Weight36.741kg
Cr / C0r0.65
Mean dia. dm265mm

Original catalogue drawing - NSK catalogue, page 61

2238 NSK Cylindrical 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. D340 mmBore d190 mmWidth B92 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 diameter1907.4803
DOutside diameter34013.3858
BInner-ring / bearing width923.622

Notes

Cylindrical roller entries from the NSK inch catalogue are series numbers covering the N / NU / NJ / NUP / NH prefixes of the same size. 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)190
Bore d (in)7.4803
Outside dia. D (mm)340
Outside dia. D (in)13.3858
Width B (mm)92
Width B (in)3.6220

Load ratings & speeds

Basic dynamic load rating Cr (lbs)186000
Basic static load rating Cor (lbs)288000
Limiting speed - grease (rpm)1,600
Limiting speed - oil (rpm)2,000

Weight

Weight (kg)36.741

Mounting dimensions (fillets / shoulders)

Fillet ra max (in)0.118
Fillet rb max (in)0.118
Shaft shoulder da min (in)8.110
Housing shoulder Da max (in)12.756
Shaft shoulder db min (in)8.110

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 500 rpm
4206,8421023,386
6137,89539213,083
8103,4211,02434,133
1082,7372,15471,814
1555,1588,323277,449

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 827,369 N. Hours = L10 x 106 / (60n). Life-modification factors for lubrication, contamination and temperature (aISO) are not included.

Source & traceability

BrandNSK
Source catalogueNSK inch product catalogue
Catalogue pagep.63 (dimensions) / p.64 (ratings)

Dimensions in inches and millimetres, load ratings in lbs.

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
NJ2238-E-M1FAGCylindrical Roller190340921090 kN37.7
NU2238-E-M1FAGCylindrical Roller190340921090 kN37.1
SL182238FAGCylindrical Roller190340921300 kN35.65
22238-BE-XLFAGSpherical Roller190340921360 kN36.8
22238-BE-XL-KFAGSpherical Roller190340921360 kN36
32238-AFAGTapered Roller190340921150 kN39.1
32238-XLFAGTapered Roller190340921340 kN35.9
32238TimkenTapered Roller190340921360 kN36.36

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
NU2238ENSKCylindrical Roller190340921360 kN38.3
22238CAME4NSKSpherical Roller19034092255,000 lbs35.149
HR32238NSKTapered Roller190340921370 kN35.2
HR32238JNSKTapered Roller19034092250,000 lbs35.181

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
1038NSKCylindrical Roller1902904681,400 lbs10.433
2338NSKCylindrical Roller190400132341,000 lbs84.368
238NSKCylindrical Roller19034055124,000 lbs22.226
338NSKCylindrical Roller19040078219,000 lbs49.442
NCF1838VNSKCylindrical Roller19024024219 kN2.4
NCF2938VNSKCylindrical Roller19026042535 kN6.5
NCF3038VNSKCylindrical Roller19029075990 kN16.7
NNCF4938VNSKCylindrical Roller19026069695 kN11.1

Request a quotation for 2238

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.