SIFT BEARING STORE CATALOG

51252NSKThrust

51252 is a NSK thrust bearing, bore 260 mm, O.D. 360 mm, height 79 mm, dynamic rating 435 kN. Dimensions, drawing, interchanges and price.

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Bore d260mm
Outside dia. D360mm
Overall width T79mm
Dynamic Cr435kN
Static C0r1800kN
Limiting speed560rpm
Weight27.3kg
Cr / C0r0.24
Mean dia. dm310mm

Original catalogue drawing - NSK E1103, page 318

51252 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. D360 mmBore d260 mmOverall width T79 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 diameter26010.2362
DOutside diameter36014.1732
TOverall assembly width793.1102
rChamfer (min)2.10.0827

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)260
Outside dia. D (mm)360
Overall width T (mm)79

Load ratings & speeds

Basic dynamic axial rating Ca (lbs)97792
Basic static axial rating Coa (lbs)404656
Basic dynamic axial rating Ca (N)435000
Basic static axial rating C0a (N)1800000
Limiting speed - grease (rpm)560
Limiting speed - oil (rpm)850

Weight

Weight (kg)27.3

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)2.1

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 100 rpm
4108,75010216,932
672,50039265,416
854,3751,024170,667
1043,5002,154359,072
1529,0008,3231,387,244

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 435,000 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
29252NSKThrust26036060192,000 lbs18.144
29352NSKThrust26042095382,000 lbs48.534
29452NSKThrust260480132634,000 lbs104.78
51152NSKThrust26032045233 kN-
51256NSKThrust26038080450 kN30.3

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