SIFT BEARING STORE CATALOG

688-2ZFAGBall

688-2Z is a FAG ball bearing, bore 8 mm, O.D. 16 mm, width 5 mm, dynamic rating 1.3 kN. Dimensions, drawing, interchanges and price.

Shielded both sides
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Bore d8mm
Outside dia. D16mm
Width B5mm
Dynamic Cr1.33kN
Static C0r0.59kN
Limiting speed53,000rpm
Weight0.004kg
Cr / C0r2.25
Mean dia. dm12mm

Original catalogue drawing - FAG Schaeffler HR 1, page 232

688-2Z FAG 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. D16 mmBore d8 mmWidth B5 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 diameter160.6299
BInner-ring / bearing width50.1969
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)16
Width B (mm)5
Seal outside dia. D2 (mm)14.2

Load ratings & speeds

Basic dynamic load rating Cr (lbs)299
Basic static load rating Cor (lbs)133
Basic dynamic load rating Cr (N)1330
Basic static load rating C0r (N)590
Fatigue limit load Cur (N)15.2
Factor f014.8
Limiting speed nG (rpm)53,000

Weight

Weight (kg)0.004

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)0.2
Shaft shoulder da (mm)9.4
Housing shoulder Da (mm)14.6
Housing fillet ra max (mm)0.2

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 3,000 rpm
433264356
62222161,200
81665122,844
101331,0005,556
15893,37518,750

Basic rating life per ISO 281: L10 = (C/P)3 with C = 1,330 N. Hours = L10 x 106 / (60n). Life-modification factors for lubrication, contamination and temperature (aISO) are not included.

Source & traceability

BrandFAG
Source catalogueFAG / Schaeffler Rolling Bearings HR 1
Catalogue pagep.232 (dimensions)

Load ratings in newtons, fatigue limit load Cur, limiting speed nG and reference speed nB.

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
108-TVHFAGBall82272.8 kN0.014
608FAGBall82273.2 kN0.01
608-2RSRFAGBall82273.2 kN0.01
608-2ZFAGBall82273.2 kN0.011
628-2ZFAGBall82483.5 kN0.018
127-TVHFAGBall72272.8 kN0.014
607FAGBall71962.6 kN0.007
607-2RSRFAGBall71962.6 kN0.007

Request a quotation for 688-2Z

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.