SIFT BEARING STORE CATALOG

NN3021NSKPrecision / Angular Contact

NN3021 is a NSK precision / angular contact bearing, bore 105 mm, O.D. 160 mm, width 41 mm. Dimensions, drawing, interchanges and price.

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Bore d105mm
Outside dia. D160mm
Width B41mm
Dynamic Cr44,500lbs
Static C0r73,000lbs
Limiting speed5,300rpm
Weight2.844kg
Cr / C0r0.61
Mean dia. dm132.5mm

Original catalogue drawing - NSK catalogue, page 221

NN3021 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. D160 mmBore d105 mmWidth B41 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 diameter1054.1339
DOutside diameter1606.2992
BInner-ring / bearing width411.6142

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)105
Bore d (in)4.1339
Outside dia. D (mm)160
Outside dia. D (in)6.2992
Width B (mm)41
Width B (in)1.6142

Load ratings & speeds

Basic dynamic load rating Cr (lbs)44500
Basic static load rating Cor (lbs)73000
Limiting speed - grease (rpm)5,300
Limiting speed - oil (rpm)6,000

Weight

Weight (kg)2.844

Mounting dimensions (fillets / shoulders)

Fillet ra (in)0.0787
Shaft shoulder da min (in)5.9449
Shaft shoulder da (in)4.4882
Housing shoulder Db (in)5.8268

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 1,700 rpm
449,48664627
632,9912162,118
824,7435125,020
1019,7951,0009,804
1513,1963,37533,088

Basic rating life per ISO 281: L10 = (C/P)3 with C = 197,946 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.223 (dimensions) / p.224 (ratings)

Dimensions in inches and millimetres, load ratings in lbs.

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
NN3021-AS-K-M-SPFAGCylindrical Roller10516041190 kN2.84

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
105BAR10SNSKPrecision / Angular Contact10516024.7511,128 lbs1.737
105BNC10NSKPrecision / Angular Contact1051602612,590 lbs1.728
105BNC10SN24NSKPrecision / Angular Contact1051602612,590 lbs1.728
105BTR10SNSKPrecision / Angular Contact10516024.7513,151 lbs1.742
7021NSKPrecision / Angular Contact1051602688 kN1.84
7021A5NSKPrecision / Angular Contact1051602618,700 lbs1.819
7021CNSKPrecision / Angular Contact1051602619,800 lbs1.801
7221NSKPrecision / Angular Contact10519036172 kN3.84

Request a quotation for NN3021

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.