SIFT BEARING STORE CATALOG

7028A5NSKPrecision / Angular Contact

7028A5 is a NSK precision / angular contact bearing, bore 140 mm, O.D. 210 mm, width 33 mm. Dimensions, drawing, interchanges and price.

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Bore d140mm
Outside dia. D210mm
Width B33mm
Dynamic Cr28,000lbs
Static C0r30,900lbs
Limiting speed5,800rpm
Weight3.869kg
Cr / C0r0.91
Mean dia. dm175mm

Original catalogue drawing - NSK catalogue, page 193

7028A5 NSK Precision / Angular Contact 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. D210 mmBore d140 mmWidth B33 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 diameter2108.2677
BInner-ring / bearing width331.2992

Notes

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)210
Outside dia. D (in)8.2677
Width B (mm)33
Width B (in)1.2992

Load ratings & speeds

Basic dynamic load rating Cr (lbs)28000
Basic static load rating Cor (lbs)30900
Limiting speed - grease (rpm)5,800
Limiting speed - oil (rpm)8,600

Weight

Weight (kg)3.869

Mounting dimensions (fillets / shoulders)

Fillet ra (in)0.079
Fillet rb (in)0.039
Shaft shoulder da (in)5.906
Housing shoulder Da (in)7.874
Housing shoulder Db (in)8.031

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 1,900 rpm
431,13864561
620,7582161,895
815,5695124,491
1012,4551,0008,772
158,3033,37529,605

Basic rating life per ISO 281: L10 = (C/P)3 with C = 124,550 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.195 (dimensions) / p.196 (ratings)

Dimensions in inches and millimetres, load ratings in lbs.

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
6028FAGBall14021033117 kN3.6
6028-2RSRFAGBall14021033117 kN3.58
6028-2ZFAGBall14021033117 kN3.56
NU1028-M1FAGCylindrical Roller14021033216 kN3.94
NU1028-XL-M1FAGCylindrical Roller14021033216 kN3.94
B7028-C-T-P4SFAGPrecision / Angular Contact14021033146 kN3.34
B7028-E-T-P4SFAGPrecision / Angular Contact14021033140 kN3.33
HCB7028-C-T-P4SFAGPrecision / Angular Contact14021033102 kN3.34
HCB7028-E-T-P4SFAGPrecision / Angular Contact1402103396.5 kN3.34

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
6028NSKBall1402103324,700 lbs3.91
1028NSKCylindrical Roller1402103339,400 lbs3.842
NU1028NSKCylindrical Roller14021033216 kN3.87
7028CNSKPrecision / Angular Contact1402103329,800 lbs3.851
N1028NSKPrecision / Angular Contact1402103339,500 lbs3.801

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
7028CNSKPrecision / Angular Contact1402103329,800 lbs3.851
7228NSKPrecision / Angular Contact14025042240 kN8.92
7228A5NSKPrecision / Angular Contact1402504250,900 lbs7.911
7228CNSKPrecision / Angular Contact1402504253,600 lbs7.843
7328NSKPrecision / Angular Contact14030062330 kN21.4
7928A5NSKPrecision / Angular Contact1401902416,900 lbs1.628
7928CNSKPrecision / Angular Contact1401902417,900 lbs1.61
N1028NSKPrecision / Angular Contact1402103339,500 lbs3.801

Request a quotation for 7028A5

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.