SIFT BEARING STORE CATALOG

7930A5NSKPrecision / Angular Contact

7930A5 is a NSK precision / angular contact bearing, bore 150 mm, O.D. 210 mm, width 28 mm. Dimensions, drawing, interchanges and price.

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Bore d150mm
Outside dia. D210mm
Width B28mm
Dynamic Cr21,700lbs
Static C0r26,000lbs
Limiting speed5,600rpm
Weight2.971kg
Cr / C0r0.83
Mean dia. dm180mm

Original catalogue drawing - NSK catalogue, page 201

7930A5 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 d150 mmWidth B28 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 diameter1505.9055
DOutside diameter2108.2677
BInner-ring / bearing width281.1024

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)150
Bore d (in)5.9055
Outside dia. D (mm)210
Outside dia. D (in)8.2677
Width B (mm)28
Width B (in)1.1024

Load ratings & speeds

Basic dynamic load rating Cr (lbs)21700
Basic static load rating Cor (lbs)26000
Limiting speed - grease (rpm)5,600
Limiting speed - oil (rpm)8,400

Weight

Weight (kg)2.971

Mounting dimensions (fillets / shoulders)

Fillet ra (in)0.079
Fillet rb (in)0.039
Shaft shoulder da (in)6.299
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 1,800 rpm
424,13264593
616,0882162,000
812,0665124,741
109,6531,0009,259
156,4353,37531,250

Basic rating life per ISO 281: L10 = (C/P)3 with C = 96,526 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
B71930-C-T-P4SFAGPrecision / Angular Contact15021028122 kN2.49
B71930-E-T-P4SFAGPrecision / Angular Contact15021028114 kN2.49

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
6930NSKBall1502102819,000 lbs2.976
7930CNSKPrecision / Angular Contact1502102822,900 lbs2.966

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
7030NSKPrecision / Angular Contact15022535151 kN4.75
7030A5NSKPrecision / Angular Contact1502253532,000 lbs4.69
7030CNSKPrecision / Angular Contact1502253534,000 lbs4.672
7230NSKPrecision / Angular Contact15027045273 kN11.2
7230A5NSKPrecision / Angular Contact1502704558,000 lbs11.104
7230CNSKPrecision / Angular Contact1502704560,800 lbs11.104
7330NSKPrecision / Angular Contact15032065350 kN26
7930CNSKPrecision / Angular Contact1502102822,900 lbs2.966

Request a quotation for 7930A5

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.