SIFT BEARING STORE CATALOG

320/28-XFAGTapered Roller

320/28-X is a FAG tapered roller bearing, bore 28 mm, O.D. 52 mm, width 16 mm, dynamic rating 33.5 kN. Dimensions, drawing, interchanges and price.

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Bore d28mm
Outside dia. D52mm
Width B16mm
Dynamic Cr33.5kN
Static C0r40kN
Limiting speed13,000rpm
Weight0.156kg
Cr / C0r0.84
Mean dia. dm40mm

Original catalogue drawing - FAG Schaeffler HR 1, page 476

320/28-X FAG 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. D52 mmBore d28 mmWidth B16 mmCup width C12 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 diameter281.1024
DOutside diameter522.0472
BInner-ring / bearing width160.6299
TOverall assembly width160.6299
CCup / outer-ring width120.4724

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)28
Outside dia. D (mm)52
Width B (mm)16
Overall width T (mm)16
Cup width C (mm)12
Inner-ring OD d1 (mm)41

Load ratings & speeds

Basic dynamic load rating Cr (lbs)7531
Basic static load rating Cor (lbs)8992
Basic dynamic load rating Cr (N)33500
Basic static load rating C0r (N)40000
Basic dynamic axial rating Ca (N)3
Fatigue limit load Cur (N)4550
Factor e0.43
Factor Y1.39
Factor Y00.77
Limiting speed nG (rpm)13,000
Reference speed nB (rpm)7,000
Effective load centre a (mm)13

Weight

Weight (kg)0.156

Mounting dimensions (fillets / shoulders)

Chamfer r2 min (mm)1
Shaft shoulder da (mm)33
Shaft shoulder db (mm)34
Housing shoulder Da (mm)46
Housing shoulder Db (mm)49
Housing fillet ra max (mm)1
Fillet rb max (mm)1

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 3,000 rpm
48,375102564
65,5833922,181
84,1881,0245,689
103,3502,15411,969
152,2338,32346,241

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 33,500 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.476 (dimensions)

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

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
HR320/28XJNSKTapered Roller28521632,000 lbs0.145

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
320/22-XFAGTapered Roller22441524.8 kN0.11
320/32-XFAGTapered Roller32581738.5 kN0.188
320/38-XFAGTapered Roller38651849 kN0.252
320/42-XFAGTapered Roller42722059 kN0.345

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
303/28FAGTapered Roller28681853 kN0.342
322/28-BFAGTapered Roller28581943.5 kN0.257
329/28FAGTapered Roller28451215.8 kN0.073
332/28FAGTapered Roller28582457 kN0.306
T2ED028FAGTapered Roller28652771 kN0.451
T4CB028FAGTapered Roller285514.530 kN0.151
K1985-1922FAGTapered Roller28.5757.1519.3648 kN0.233
K1988-1922FAGTapered Roller28.5757.1519.3648 kN0.267

Request a quotation for 320/28-X

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