SIFT BEARING STORE CATALOG

51224NSKThrust

51224 is a NSK thrust bearing, bore 120 mm, O.D. 170 mm, height 39 mm, dynamic rating 31,700 lbs. Dimensions, drawing, interchanges and price.

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Bore d120mm
Outside dia. D170mm
Overall width T39mm
Dynamic Cr31,700lbs
Static C0r97,000lbs
Limiting speed1,200rpm
Weight2.69kg
Cr / C0r0.33
Mean dia. dm145mm

Original catalogue drawing - NSK catalogue, page 147

51224 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. D170 mmBore d120 mmOverall width T39 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 diameter1204.7244
DOutside diameter1706.6929
TOverall assembly width391.5354

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)120
Bore d (in)4.7244
Outside dia. D (mm)170
Outside dia. D (in)6.6929
Overall width T (mm)39
Overall width T (in)1.5354

Load ratings & speeds

Basic dynamic axial rating Ca (lbs)31700
Basic static axial rating Coa (lbs)97000
Limiting speed - grease (rpm)1,200
Limiting speed - oil (rpm)1,800

Weight

Weight (kg)2.69

Mounting dimensions (fillets / shoulders)

Chamfer r (in)0.039
Shaft shoulder da min (in)5.910
Housing shoulder Da (in)5.516

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 400 rpm
435,2521024,233
623,50139216,354
817,6261,02442,667
1014,1012,15489,768
159,4018,323346,811

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 141,009 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
29324NSKThrust12021054645 kN-
29324ENSKThrust12021054144,000 lbs7.303
29424NSKThrust120250781160 kN16.6
29424ENSKThrust12025078262,000 lbs16.556
51124NSKThrust1201552520,200 lbs1.12
51324XNSKThrust1202107073,900 lbs9.702
51424XNSKThrust120250102108,000 lbs26.199
52224NSKThrust120170None141 kN5.4

Request a quotation for 51224

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