SIFT BEARING STORE CATALOG

51228NSKThrust

51228 is a NSK thrust bearing, bore 130 mm, O.D. 200 mm, height 46 mm, dynamic rating 186 kN. Dimensions, drawing, interchanges and price.

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Bore d130mm
Outside dia. D200mm
Overall width T46mm
Dynamic Cr186kN
Static C0r575kN
Limiting speed1,000rpm
Weight4.74kg
Cr / C0r0.32
Mean dia. dm165mm

Original catalogue drawing - NSK E1103, page 317

51228 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. D200 mmBore d130 mmOverall width T46 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 diameter1305.1181
DOutside diameter2007.874
TOverall assembly width461.811
rChamfer (min)1.50.0591

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)130
Outside dia. D (mm)200
Overall width T (mm)46

Load ratings & speeds

Basic dynamic axial rating Ca (lbs)41814
Basic static axial rating Coa (lbs)129265
Basic dynamic axial rating Ca (N)186000
Basic static axial rating C0a (N)575000
Limiting speed - grease (rpm)1,000
Limiting speed - oil (rpm)1,500

Weight

Weight (kg)4.74

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)1.5

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 300 rpm
446,5001025,644
631,00039221,805
823,2501,02456,889
1018,6002,154119,691
1512,4008,323462,415

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 186,000 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.317 (dimensions)

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

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
29326NSKThrust13022558740 kN8.95
29326ENSKThrust13022558166,000 lbs8.936
29426NSKThrust130270851330 kN21.1
29426ENSKThrust13027085298,000 lbs21.092
51126NSKThrust1301703023,600 lbs1.678
51226NSKThrust13019045183 kN4.35
51226XNSKThrust1301904541,200 lbs3.951
51326XNSKThrust1302257578,300 lbs12.102

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