SIFT BEARING STORE CATALOG

51268NSKThrust

51268 is a NSK thrust bearing, bore 340 mm, O.D. 460 mm, height 96 mm, dynamic rating 595 kN. Dimensions, drawing, interchanges and price.

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Bore d340mm
Outside dia. D460mm
Overall width T96mm
Dynamic Cr595kN
Static C0r2800kN
Limiting speed430rpm
Weight52.7kg
Cr / C0r0.21
Mean dia. dm400mm

Original catalogue drawing - NSK E1103, page 318

51268 NSK Thrust 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

DdTOutside dia. D460 mmBore d340 mmOverall width T96 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 diameter34013.3858
DOutside diameter46018.1102
TOverall assembly width963.7795
rChamfer (min)30.1181

Notes

Thrust bearing ratings are axial values Ca / Coa; T is the overall height. 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)340
Outside dia. D (mm)460
Overall width T (mm)96

Load ratings & speeds

Basic dynamic axial rating Ca (lbs)133761
Basic static axial rating Coa (lbs)629465
Basic dynamic axial rating Ca (N)595000
Basic static axial rating C0a (N)2800000
Limiting speed - grease (rpm)430
Limiting speed - oil (rpm)630

Weight

Weight (kg)52.7

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)3

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 100 rpm
4148,75010216,932
699,16739265,416
874,3751,024170,667
1059,5002,154359,072
1539,6678,3231,387,244

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 595,000 N. Hours = L10 x 106 / (60n). Life-modification factors for lubrication, contamination and temperature (aISO) are not included.

Source & traceability

BrandNSK
Source catalogueNSK CAT. No. E1103 (metric)
Catalogue pagep.318 (dimensions)

Load ratings in newtons, weights in kg, limiting speeds for grease and oil lubrication.

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
29268NSKThrust34046073277,000 lbs33.566
29368NSKThrust340540122593,000 lbs102.965
29468NSKThrust340620170989,000 lbs217.724
51168NSKThrust34042064375 kN-

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