SIFT BEARING STORE CATALOG

7902A5NSKPrecision / Angular Contact

7902A5 is a NSK precision / angular contact bearing, bore 15 mm, O.D. 28 mm, width 7 mm. Dimensions, drawing, interchanges and price.

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Bore d15mm
Outside dia. D28mm
Width B7mm
Dynamic Cr1,030lbs
Static C0r570lbs
Limiting speed46,600rpm
Weight0.014kg
Cr / C0r1.81
Mean dia. dm21.5mm

Original catalogue drawing - NSK catalogue, page 201

7902A5 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. D28 mmBore d15 mmWidth B7 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 diameter150.5906
DOutside diameter281.1024
BInner-ring / bearing width70.2756

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)15
Bore d (in)0.5906
Outside dia. D (mm)28
Outside dia. D (in)1.1024
Width B (mm)7
Width B (in)0.2756

Load ratings & speeds

Basic dynamic load rating Cr (lbs)1030
Basic static load rating Cor (lbs)570
Limiting speed - grease (rpm)46,600
Limiting speed - oil (rpm)69,800

Weight

Weight (kg)0.014

Mounting dimensions (fillets / shoulders)

Fillet ra (in)0.012
Fillet rb (in)0.006
Shaft shoulder da (in)0.689
Housing shoulder Da (in)1.004
Housing shoulder Db (in)1.055

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 3,000 rpm
41,14564356
67642161,200
85735122,844
104581,0005,556
153053,37518,750

Basic rating life per ISO 281: L10 = (C/P)3 with C = 4,582 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.203 (dimensions) / p.204 (ratings)

Dimensions in inches and millimetres, load ratings in lbs.

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
61902FAGBall152874.6 kN0.019
61902-2RSRFAGBall152874.6 kN0.019
61902-2ZFAGBall152874.6 kN0.019
B71902-C-T-P4SFAGPrecision / Angular Contact152875 kN0.015
B71902-E-T-P4SFAGPrecision / Angular Contact152874.8 kN0.015
HCB71902-C-T-P4SFAGPrecision / Angular Contact152873.5 kN0.02
HCB71902-E-T-P4SFAGPrecision / Angular Contact152873.4 kN0.02
HCS71902-C-T-P4SFAGPrecision / Angular Contact152871.9 kN0.015
HCS71902-E-T-P4SFAGPrecision / Angular Contact152871.8 kN0.015
HSS71902-C-T-P4SFAGPrecision / Angular Contact152872.8 kN0.015

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
6902NSKBall15287968 lbs0.014
7902CNSKPrecision / Angular Contact152871,070 lbs0.014

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
15BGR10HNSKPrecision / Angular Contact15329940 lbs0.027
15BGR10SNSKPrecision / Angular Contact15329940 lbs0.027
5202NSKPrecision / Angular Contact153515.912.9 kN0.07
5202BZZNSKPrecision / Angular Contact153515.99.3 kN0.07
5302AZZNSKPrecision / Angular Contact15421916.1 kN0.13
7002NSKPrecision / Angular Contact153296.8 kN0.03
7002A5NSKPrecision / Angular Contact153291,340 lbs0.032
7002CNSKPrecision / Angular Contact153291,400 lbs0.032

Request a quotation for 7902A5

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.