SIFT BEARING STORE CATALOG

7900A5NSKPrecision / Angular Contact

7900A5 is a NSK precision / angular contact bearing, bore 10 mm, O.D. 22 mm, width 6 mm. Dimensions, drawing, interchanges and price.

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Bore d10mm
Outside dia. D22mm
Width B6mm
Dynamic Cr650lbs
Static C0r330lbs
Limiting speed62,500rpm
Weight0.009kg
Cr / C0r1.97
Mean dia. dm16mm

Original catalogue drawing - NSK catalogue, page 201

7900A5 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. D22 mmBore d10 mmWidth B6 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 diameter100.3937
DOutside diameter220.8661
BInner-ring / bearing width60.2362

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)10
Bore d (in)0.3937
Outside dia. D (mm)22
Outside dia. D (in)0.8661
Width B (mm)6
Width B (in)0.2362

Load ratings & speeds

Basic dynamic load rating Cr (lbs)650
Basic static load rating Cor (lbs)330
Limiting speed - grease (rpm)62,500
Limiting speed - oil (rpm)93,800

Weight

Weight (kg)0.00907

Mounting dimensions (fillets / shoulders)

Fillet ra (in)0.012
Fillet rb (in)0.006
Shaft shoulder da (in)0.492
Housing shoulder Da (in)0.768
Housing shoulder Db (in)0.819

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 3,000 rpm
472364356
64822161,200
83615122,844
102891,0005,556
151933,37518,750

Basic rating life per ISO 281: L10 = (C/P)3 with C = 2,891 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
61900FAGBall102262.9 kN0.01
61900-2RSRFAGBall102262.9 kN0.012
61900-2ZFAGBall102262.9 kN0.01
B71900-C-T-P4SFAGPrecision / Angular Contact102263 kN0.009
B71900-E-T-P4SFAGPrecision / Angular Contact102262.9 kN0.009
HCB71900-C-T-P4SFAGPrecision / Angular Contact102262.1 kN0.01
HCB71900-E-T-P4SFAGPrecision / Angular Contact102262 kN0.01
HCS71900-C-T-P4SFAGPrecision / Angular Contact102261.4 kN0.01
HCS71900-E-T-P4SFAGPrecision / Angular Contact102261.3 kN0.009
HSS71900-C-T-P4SFAGPrecision / Angular Contact102262 kN0.01

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
6900NSKBall10226605 lbs0.009
7900CNSKPrecision / Angular Contact10226670 lbs0.009

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
10BGR10HNSKPrecision / Angular Contact10268800 lbs0.018
10BGR10SNSKPrecision / Angular Contact10268800 lbs0.018
5200NSKPrecision / Angular Contact103014.37.8 kN0.05
5200ZZNSKPrecision / Angular Contact103014.37.8 kN0.05
7000NSKPrecision / Angular Contact102685.9 kN0.019
7000A5NSKPrecision / Angular Contact102681,160 lbs0.018
7000CNSKPrecision / Angular Contact102681,190 lbs0.023
7200NSKPrecision / Angular Contact103096 kN0.032

Request a quotation for 7900A5

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