SIFT BEARING STORE CATALOG

51128XNSKThrust

51128X is a NSK thrust bearing, bore 140 mm, O.D. 200 mm, height 31 mm, dynamic rating 24,300 lbs. Dimensions, drawing, interchanges and price.

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Bore d140mm
Outside dia. D200mm
Overall width T31mm
Dynamic Cr24,300lbs
Static C0r84,900lbs
Limiting speed1,300rpm
Weight1.828kg
Cr / C0r0.29
Mean dia. dm170mm

Original catalogue drawing - NSK catalogue, page 147

51128X 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 d140 mmOverall width T31 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 diameter1405.5118
DOutside diameter2007.874
TOverall assembly width311.2205

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)140
Bore d (in)5.5118
Outside dia. D (mm)200
Outside dia. D (in)7.8740
Overall width T (mm)31
Overall width T (in)1.2205

Load ratings & speeds

Basic dynamic axial rating Ca (lbs)24300
Basic static axial rating Coa (lbs)84900
Limiting speed - grease (rpm)1,300
Limiting speed - oil (rpm)2,000

Weight

Weight (kg)1.828

Mounting dimensions (fillets / shoulders)

Chamfer r (in)0.039
Shaft shoulder da min (in)6.462
Housing shoulder Da (in)6.146

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 400 rpm
427,0231024,233
618,01539216,354
813,5111,02442,667
1010,8092,15489,768
157,2068,323346,811

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 108,092 N. Hours = L10 x 106 / (60n). Life-modification factors for lubrication, contamination and temperature (aISO) are not included.

Source & traceability

BrandNSK
Source catalogueNSK inch product catalogue
Catalogue pagep.149 (dimensions) / p.150 (ratings)

Dimensions in inches and millimetres, load ratings in lbs.

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
29328NSKThrust14024060840 kN10.4
29328ENSKThrust14024060189,000 lbs10.387
29428NSKThrust140280851370 kN-
29428ENSKThrust14028085310,000 lbs22.226
51228XNSKThrust1402404641,700 lbs4.3
51328XNSKThrust1402808082,700 lbs15.599
51428XNSKThrust140160112125,000 lbs34.7
52228NSKThrust140200None186 kN8.87

Request a quotation for 51128X

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