SIFT BEARING STORE CATALOG

MR148NSKBall

MR148 is a NSK ball bearing, bore 8 mm, O.D. 14 mm, width 3.5 mm, dynamic rating 0.9 kN. Dimensions, drawing, interchanges and price.

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Bore d8mm
Outside dia. D14mm
Width B3.5mm
Dynamic Cr0.9kN
Static C0r0.39kN
Limiting speed38,000rpm
Weight0.002kg
Cr / C0r2.34
Mean dia. dm11mm

Original catalogue drawing - NSK E1103, page 196

MR148 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. D14 mmBore d8 mmWidth B3.5 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 diameter80.315
DOutside diameter140.5512
BInner-ring / bearing width3.50.1378
rChamfer (min)0.20.0079

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)8
Outside dia. D (mm)14
Width B (mm)3.5

Load ratings & speeds

Basic dynamic load rating Cr (lbs)202
Basic static load rating Cor (lbs)87
Basic dynamic load rating Cr (N)900
Basic static load rating C0r (N)385
Limiting speed - grease (rpm)38,000
Limiting speed - oil (rpm)45,000

Weight

Weight (kg)0.00186

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)0.20

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 3,000 rpm
422564356
61502161,200
81125122,844
10901,0005,556
15603,37518,750

Basic rating life per ISO 281: L10 = (C/P)3 with C = 900 N. Hours = L10 x 106 / (60n). Life-modification factors for lubrication, contamination and temperature (aISO) are not included.

Source & traceability

BrandNSK
Source catalogueNSK CAT. No. E1103 (metric)
Catalogue pagep.196 (dimensions)

Load ratings in newtons, weights in kg, limiting speeds for grease and oil lubrication.

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
608NSKBall8227741 lbs0.014
628NSKBall8248750 lbs0.015
638NSKBall82891,030 lbs0.026
698NSKBall8196503 lbs0.006
MR128NSKBall8122.50.6 kN0.001
R1810NSKBall7.9412.73.970.6 kN0.001
608-5NSKBall7.9227741 lbs0.014
607NSKBall7196525 lbs0.007

Request a quotation for MR148

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.