SIFT BEARING STORE CATALOG

6234NSKBall

6234 is a NSK ball bearing, bore 170 mm, O.D. 310 mm, width 52 mm, dynamic rating 47,700 lbs. Dimensions, drawing, interchanges and price.

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Bore d170mm
Outside dia. D310mm
Width B52mm
Dynamic Cr47,700lbs
Static C0r50,300lbs
Limiting speed1,800rpm
Weight15.567kg
Cr / C0r0.95
Mean dia. dm240mm

Original catalogue drawing - NSK catalogue, page 17

6234 NSK Ball 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. D310 mmBore d170 mmWidth B52 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 diameter1706.6929
DOutside diameter31012.2047
BInner-ring / bearing width522.0472
rChamfer (min)2.9970.118

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)170
Bore d (in)6.6929
Outside dia. D (mm)310
Outside dia. D (in)12.2047
Width B (mm)52
Width B (in)2.0472

Load ratings & speeds

Basic dynamic load rating Cr (lbs)47700
Basic static load rating Cor (lbs)50300
Limiting speed - grease (rpm)1,800
Limiting speed - oil (rpm)2,200
Factor f015.3

Weight

Weight (kg)15.567

Mounting dimensions (fillets / shoulders)

Chamfer r (in)0.118
Shaft shoulder da min (in)7.362
Shaft shoulder da max (in)8.471
Housing shoulder Da max (in)11.535

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 600 rpm
453,045641,778
635,3632166,000
826,52351214,222
1021,2181,00027,778
1514,1453,37593,750

Basic rating life per ISO 281: L10 = (C/P)3 with C = 212,180 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.19 (dimensions) / p.20 (ratings)

Dimensions in inches and millimetres, load ratings in lbs.

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
6234-MFAGBall17031052225 kN18.3
QJ234-N2-MPAFAGBall17031052420 kN18.6
N234-E-M1FAGCylindrical Roller17031052700 kN18
N234-E-XL-M1FAGCylindrical Roller17031052700 kN18
NJ234-E-M1FAGCylindrical Roller17031052700 kN18.4
NJ234-E-XL-M1FAGCylindrical Roller17031052700 kN18.4
NU234-E-M1FAGCylindrical Roller17031052700 kN18.1
NU234-E-XL-M1FAGCylindrical Roller17031052700 kN18.1
NUP234-E-M1FAGCylindrical Roller17031052700 kN18.6
NUP234-E-XL-M1FAGCylindrical Roller17031052700 kN18.6

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
7234BNSKBall1703105260,000 lbs17.01
234NSKCylindrical Roller17031052107,000 lbs18.144
NU234ENSKCylindrical Roller17031052740 kN18.3
30234NSKTapered Roller17031052118,000 lbs16.103
HR30234NSKTapered Roller17031052775 kN17.1
7234NSKPrecision / Angular Contact17031052325 kN17.3
7234A5NSKPrecision / Angular Contact1703105268,300 lbs17.205
7234CNSKPrecision / Angular Contact1703105271,700 lbs17.404

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
16034NSKBall17026028126 kN5.71
6034NSKBall1702604236,200 lbs7.938
6334NSKBall1703607273,400 lbs38.102
6834NSKBall1702152213,400 lbs1.864
6934NSKBall1702302819,300 lbs3.302
7234BNSKBall1703105260,000 lbs17.01
7334BNSKBall1703607279,400 lbs35.471

Request a quotation for 6234

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.

Online enquiry formrichard@bearingsfit.com