SIFT BEARING STORE CATALOG

52309NSKThrust

52309 is a NSK thrust bearing, bore 45 mm, O.D. 85 mm, dynamic rating 80.5 kN, limiting speed 1,900 rpm. Dimensions, drawing, interchanges and price.

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Bore d45mm
Outside dia. D85mm
Dynamic Cr80.5kN
Static C0r163kN
Limiting speed1,900rpm
Weight1.34kg
Cr / C0r0.49
Mean dia. dm65mm

Original catalogue drawing - NSK E1103, page 319

52309 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. D85 mmBore d45 mmWidth B20 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 diameter451.7717
DOutside diameter853.3465
rChamfer (min)10.0394

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)45
Outside dia. D (mm)85

Load ratings & speeds

Basic dynamic axial rating Ca (lbs)18097
Basic static axial rating Coa (lbs)36644
Basic dynamic axial rating Ca (N)80500
Basic static axial rating C0a (N)163000
Limiting speed - grease (rpm)1,900
Limiting speed - oil (rpm)2,800

Weight

Weight (kg)1.34

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)1
Chamfer r1 min (mm)0.6

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 600 rpm
420,1251022,822
613,41739210,903
810,0621,02428,444
108,0502,15459,845
155,3678,323231,207

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 80,500 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.319 (dimensions)

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

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
51109NSKThrust4565146,300 lbs0.142
51209NSKThrust45732010,800 lbs0.31
51309NSKThrust45852818,000 lbs0.672
51409NSKThrust451003928,600 lbs1.46
52209NSKThrust4573None48 kN0.652
52409NSKThrust45100None128 kN2.85
51108NSKThrust4060136,100 lbs0.12
51208NSKThrust40681910,600 lbs0.27

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