SIFT BEARING STORE CATALOG

51434NSKThrust

51434 is a NSK thrust bearing, bore 170 mm, O.D. 340 mm, height 135 mm, dynamic rating 715 kN. Dimensions, drawing, interchanges and price.

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Bore d170mm
Outside dia. D340mm
Overall width T135mm
Dynamic Cr715kN
Static C0r2480kN
Limiting speed430rpm
Weight61.3kg
Cr / C0r0.29
Mean dia. dm255mm

Original catalogue drawing - NSK E1103, page 317

51434 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. D340 mmBore d170 mmOverall width T135 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 diameter1706.6929
DOutside diameter34013.3858
TOverall assembly width1355.315
rChamfer (min)50.1969

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)170
Outside dia. D (mm)340
Overall width T (mm)135

Load ratings & speeds

Basic dynamic axial rating Ca (lbs)160738
Basic static axial rating Coa (lbs)557526
Basic dynamic axial rating Ca (N)715000
Basic static axial rating C0a (N)2480000
Limiting speed - grease (rpm)430
Limiting speed - oil (rpm)630

Weight

Weight (kg)61.3

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)5

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 100 rpm
4178,75010216,932
6119,16739265,416
889,3751,024170,667
1071,5002,154359,072
1547,6678,3231,387,244

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 715,000 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
29334NSKThrust170280671050 kN14.8
29334ENSKThrust17028067235,000 lbs14.742
29434NSKThrust170340103375,000 lbs43.545
51134NSKThrust17021534135 kN-
51334NSKThrust17028087465 kN23.2
52234NSKThrust170240None280 kN15.2
52334NSKThrust170280None465 kN-
52434NSKThrust170340None715 kN-

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