SIFT BEARING STORE CATALOG

74500/74845TimkenTapered Roller

74500/74845 is a Timken tapered roller bearing, bore 127 mm, O.D. 214.97 mm, width 95.25 mm. Dimensions, drawing, interchanges and price.

Cone + cup assembly
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Bore d127mm
Outside dia. D214.97mm
Width B95.25mm
Dynamic Cr665kN
Weight14.33kg
Mean dia. dm171mm

Original catalogue drawing - Timken TRB Catalog, page 712

74500/74845 Timken 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. D214.97 mmBore d127 mmWidth B95.25 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 diameter1275
DOutside diameter214.9758.4636
BInner-ring / bearing width95.253.75
TOverall assembly width95.253.75

Notes

Tapered roller bearings are cone / cup assemblies; cone and cup weights are listed separately and the total is their sum. 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)127.000
Bore d (in)5.0000
Outside dia. D (mm)214.975
Outside dia. D (in)8.4636
Width B (mm)95.250
Width B (in)3.7500
Overall width T (mm)95.250
Overall width T (in)3.7500

Load ratings & speeds

Basic dynamic load rating Cr (lbs)150000
Basic dynamic load rating Cr (N)665000
Dynamic rating C1 (N, ISO)665000
Dynamic rating C1 (lbf, ISO)150000
Radial rating C90 (N)99000
Radial rating C90 (lbf)22300
Thrust rating Ca90 (N)82600
Thrust rating Ca90 (lbf)18600
Factor e0.49
Factor Y11.38
Factor Y22.06
Factor K1.20

Weight

Weight (kg)14.33
Cone weight (kg)5.06
Cup weight (kg)1.84
Total weight (kg)6.9

Mounting dimensions (fillets / shoulders)

Shaft shoulder db (mm)141.0
Housing shoulder Da (mm)196.0

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 500 rpm
4166,2501023,386
6110,83339213,083
883,1251,02434,133
1066,5002,15471,814
1544,3338,323277,449

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 665,000 N. Hours = L10 x 106 / (60n). Life-modification factors for lubrication, contamination and temperature (aISO) are not included.

Source & traceability

BrandTimken
Source catalogueTimken Tapered Roller Bearing Catalog (2016)
Catalogue pagep.712 (dimensions) / p.108 (cone) / p.108 (cup)
Series typeTS

ISO dynamic rating C1, Timken C90 / Ca90, static rating C0, geometry factors and assembly weight.

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
74500/74850TimkenTapered Roller127215.947.62382 kN6.96
74500/74851CDTimkenTapered Roller127215.9106.36665 kN14.81

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
48290/48220TimkenTapered Roller127182.5638.1268 kN3.26
48290/48220DTimkenTapered Roller127182.5685.72466 kN7.09
67388/67320TimkenTapered Roller127203.246.04368 kN5.65
67388/67322TimkenTapered Roller127196.8546.04368 kN5.05
67388/67322DTimkenTapered Roller127196.85101.6640 kN10.71
67388/67325DTimkenTapered Roller127200.03101.6640 kN11.36
67388D/67322TimkenTapered Roller127196.8592.08640 kN10.66
750500/751200TimkenTapered Roller127304.86.4--

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