SIFT BEARING STORE CATALOG

HR31305JNSKTapered Roller

HR31305J is a NSK tapered roller bearing, bore 25 mm, O.D. 62 mm, width 17 mm, dynamic rating 8,540 lbs. Dimensions, drawing, interchanges and price.

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Bore d25mm
Outside dia. D62mm
Width B17mm
Dynamic Cr8,540lbs
Static C0r9,100lbs
Limiting speed6,410rpm
Weight0.263kg
Cr / C0r0.94
Mean dia. dm43.5mm

Original catalogue drawing - NSK catalogue, page 109

HR31305J NSK Tapered Roller 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. D62 mmBore d25 mmWidth B17 mmCup width C13 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 diameter250.9843
DOutside diameter622.4409
BInner-ring / bearing width170.6693
TOverall assembly width18.250.7185
CCup / outer-ring width130.5118

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)25
Bore d (in)0.9843
Outside dia. D (mm)62
Outside dia. D (in)2.4409
Width B (mm)17
Width B (in)0.6693
Overall width T (mm)18.25
Overall width T (in)0.7185
Cup width C (mm)13
Cup width C (in)0.5118

Load ratings & speeds

Basic dynamic load rating Cr (lbs)8540
Basic static load rating Cor (lbs)9100
Limiting speed - grease (rpm)6,410
Limiting speed - oil (rpm)8,700

Weight

Weight (kg)0.263

Mounting dimensions (fillets / shoulders)

Chamfer r (in)0.06
Shaft shoulder da min (in)1.398
Housing shoulder Da max (in)2.087
Shaft shoulder db max (in)1.346

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 2,100 rpm
49,497102806
66,3313923,115
84,7481,0248,127
103,7992,15417,099
152,5338,32366,059

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 37,988 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.111 (dimensions) / p.112 (ratings)

Dimensions in inches and millimetres, load ratings in lbs.

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
1305-K-TVH-C3FAGBall25621718.3 kN0.254
1305-TVHFAGBall25621718.3 kN0.258
6305FAGBall25621722.4 kN0.234
6305-2RSRFAGBall25621722.4 kN0.242
6305-2ZFAGBall25621722.4 kN0.24
6305-CFAGBall25621724.7 kN0.215
6305-C-2BRSFAGBall25621724.7 kN0.242
6305-C-2HRSFAGBall25621724.7 kN0.224
6305-C-2ZFAGBall25621724.7 kN0.222
QJ305-TVPFAGBall25621744 kN0.256

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
1305NSKBall2562174,050 lbs0.277
6305NSKBall2562174,630 lbs0.236
7305BNSKBall2562175,160 lbs0.245
BL305NSKBall2562175,720 lbs0.245
305NSKCylindrical Roller2562176,560 lbs0.24
NU305ENSKCylindrical Roller25621751 kN0.269
21305CDE4NSKSpherical Roller25621743 kN0.26
HR30305NSKTapered Roller25621758.5 kN0.27

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
07097/07196NSKTapered Roller2550.0114.2610,000 lbs0.127
07097/07204NSKTapered Roller2551.9914.2610,000 lbs0.154
HR30205NSKTapered Roller25521539.5 kN0.157
HR30205CNSKTapered Roller2552156,320 lbs0.15
HR30205JNSKTapered Roller2552157,190 lbs0.159
HR30305NSKTapered Roller25621758.5 kN0.27
HR30305CNSKTapered Roller2562179,440 lbs0.265
HR30305JNSKTapered Roller25621710,700 lbs0.268

Request a quotation for HR31305J

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