SIFT BEARING STORE CATALOG

51228XNSKThrust

51228X is a NSK thrust bearing, bore 140 mm, O.D. 240 mm, height 46 mm, dynamic rating 41,700 lbs. Dimensions, drawing, interchanges and price.

Request a quoteEmail usSearch the catalog
Bore d140mm
Outside dia. D240mm
Overall width T46mm
Dynamic Cr41,700lbs
Static C0r130,000lbs
Limiting speed1,000rpm
Weight4.3kg
Cr / C0r0.32
Mean dia. dm190mm

Original catalogue drawing - NSK catalogue, page 147

51228X 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. D240 mmBore d140 mmOverall width T46 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 diameter2409.4488
TOverall assembly width461.811

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)240
Outside dia. D (in)9.4488
Overall width T (mm)46
Overall width T (in)1.8110

Load ratings & speeds

Basic dynamic axial rating Ca (lbs)41700
Basic static axial rating Coa (lbs)130000
Limiting speed - grease (rpm)1,000
Limiting speed - oil (rpm)1,500

Weight

Weight (kg)4.3

Mounting dimensions (fillets / shoulders)

Chamfer r (in)0.059
Shaft shoulder da min (in)6.934
Housing shoulder Da (in)6.462

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 300 rpm
446,3731025,644
630,91539221,805
823,1861,02456,889
1018,5492,154119,691
1512,3668,323462,415

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 185,491 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
51128XNSKThrust1402003124,300 lbs1.828
51328XNSKThrust1402808082,700 lbs15.599
51428XNSKThrust140160112125,000 lbs34.7
52228NSKThrust140200None186 kN8.87

Request a quotation for 51228X

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.

Online enquiry formrichard@bearingsfit.com