SIFT BEARING STORE CATALOG

52318NSKThrust

52318 is a NSK thrust bearing, bore 90 mm, O.D. 155 mm, dynamic rating 214 kN, limiting speed 1,100 rpm. Dimensions, drawing, interchanges and price.

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Bore d90mm
Outside dia. D155mm
Dynamic Cr214kN
Static C0r525kN
Limiting speed1,100rpm
Weight7.33kg
Cr / C0r0.41
Mean dia. dm122.5mm

Original catalogue drawing - NSK E1103, page 320

52318 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

DdBOutside dia. D155 mmBore d90 mmWidth B32.5 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 diameter903.5433
DOutside diameter1556.1024
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)90
Outside dia. D (mm)155

Load ratings & speeds

Basic dynamic axial rating Ca (lbs)48109
Basic static axial rating Coa (lbs)118025
Basic dynamic axial rating Ca (N)214000
Basic static axial rating C0a (N)525000
Limiting speed - grease (rpm)1,100
Limiting speed - oil (rpm)1,600

Weight

Weight (kg)7.33

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)1.5
Chamfer r1 min (mm)1

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 300 rpm
453,5001025,644
635,66739221,805
826,7501,02456,889
1021,4002,154119,691
1514,2678,323462,415

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 214,000 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.320 (dimensions)

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

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
29318ENSKThrust901503978,500 lbs2.835
29418ENSKThrust9019060156,000 lbs7.53
51118NSKThrust901202213,600 lbs0.644
51218NSKThrust901353525,600 lbs1.692
51318NSKThrust901555048,300 lbs3.828
51418NSKThrust9019077330 kN10.3
51418XNSKThrust901907773,900 lbs10.201
52418NSKThrust90190None330 kN18.1

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