SIFT BEARING STORE CATALOG

4388/4335TimkenTapered Roller

4388/4335 is a Timken tapered roller bearing, bore 41.27 mm, O.D. 90.49 mm, width 40.39 mm. Dimensions, drawing, interchanges and price.

Cone + cup assembly
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Bore d41.27mm
Outside dia. D90.49mm
Width B40.39mm
Dynamic Cr199kN
Static C0r204kN
Weight1.24kg
Cr / C0r0.98
Mean dia. dm65.9mm

Original catalogue drawing - Timken TRB Catalog, page 164

4388/4335 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. D90.49 mmBore d41.27 mmWidth B40.39 mmCup width C33.34 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 diameter41.2751.625
DOutside diameter90.4883.5625
BInner-ring / bearing width40.3861.59
TOverall assembly width39.6881.5625
CCup / outer-ring width33.3381.3125
rChamfer (min)3.30.1299

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)41.275
Bore d (in)1.6250
Outside dia. D (mm)90.488
Outside dia. D (in)3.5625
Width B (mm)40.386
Overall width T (mm)39.688
Overall width T (in)1.5625
Cup width C (mm)33.338

Load ratings & speeds

Basic dynamic load rating Cr (lbs)44700
Basic static load rating Cor (lbs)45900
Basic dynamic load rating Cr (N)199000
Basic static load rating C0r (N)204000
Dynamic rating C1 (N, ISO)199000
Dynamic rating C1 (lbf, ISO)44700
Radial rating C90 (N)51500
Radial rating C90 (lbf)11600
Thrust rating Ca90 (N)25100
Thrust rating Ca90 (lbf)5640
Static rating C0 (N)204000
Static rating C0 (lbf)45900
Factor e0.28
Factor Y2.11
Factor K2.05
Geometry factor G152.9
Geometry factor G214.3
Geometry factor Cg0.0872
Effective load centre a (mm)-15.0

Weight

Weight (kg)1.24

Mounting dimensions (fillets / shoulders)

Shaft fillet R max (mm)3.5
Housing fillet r max (mm)3.3
Shaft shoulder da (mm)52.0
Shaft shoulder db (mm)60.0
Housing shoulder Da (mm)85.0
Housing shoulder Db (mm)77.0
Cage projection Aa (mm)2.2
Cage projection Ab (mm)0.6

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 500 rpm
449,7501023,386
633,16739213,083
824,8751,02434,133
1019,9002,15471,814
1513,2678,323277,449

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 199,000 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.164 (dimensions)
Series typeTS

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

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
4388/4320TimkenTapered Roller41.2788.540.39-1.18

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
11162/11300TimkenTapered Roller41.2776.217.3848.1 kN0.34
11162/11315TimkenTapered Roller41.278017.3848.1 kN0.39
18590/18520TimkenTapered Roller41.2773.0317.4650.8 kN0.28
22778/22720TimkenTapered Roller41.2782.5526.99-0.65
22778/22721TimkenTapered Roller41.2782.5526.9992.9 kN0.64
24780/24720TimkenTapered Roller41.2776.223.0275.5 kN0.43
24780/24721TimkenTapered Roller41.2776.223.0275.5 kN0.47
24780/24722TimkenTapered Roller41.2776.223.0275.5 kN0.42

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