SIFT BEARING STORE CATALOG

51230NSKThrust

51230 is a NSK thrust bearing, bore 150 mm, O.D. 215 mm, height 50 mm, dynamic rating 238 kN. Dimensions, drawing, interchanges and price.

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Bore d150mm
Outside dia. D215mm
Overall width T50mm
Dynamic Cr238kN
Static C0r735kN
Limiting speed950rpm
Weight6.09kg
Cr / C0r0.32
Mean dia. dm182.5mm

Original catalogue drawing - NSK E1103, page 317

51230 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. D215 mmBore d150 mmOverall width T50 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 diameter1505.9055
DOutside diameter2158.4646
TOverall assembly width501.9685
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)150
Outside dia. D (mm)215
Overall width T (mm)50

Load ratings & speeds

Basic dynamic axial rating Ca (lbs)53505
Basic static axial rating Coa (lbs)165235
Basic dynamic axial rating Ca (N)238000
Basic static axial rating C0a (N)735000
Limiting speed - grease (rpm)950
Limiting speed - oil (rpm)1,400

Weight

Weight (kg)6.09

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
459,5001025,644
639,66739221,805
829,7501,02456,889
1023,8002,154119,691
1515,8678,323462,415

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 238,000 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.

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
51230XNSKThrust1502155053,600 lbs5.511

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
29330NSKThrust15025060870 kN-
29330ENSKThrust15025060196,000 lbs10.795
29430NSKThrust150300901580 kN27.3
29430ENSKThrust15030090355,000 lbs27.216
51130NSKThrust15019031110 kN-
51130XNSKThrust1501903124,700 lbs1.941
51230XNSKThrust1502155053,600 lbs5.511
51330NSKThrust15025080380 kN17.3

Request a quotation for 51230

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.