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TimkenNA48390-3Tapered Roller Bearing Cone — 5.3750 in (136.525 mm) Bore, 1.6875 in (42.863 mm) Width, Class 3, Two-Row Service

Condition: New – Open box
Condition Note: Made In USA, Class 3 Precision, New Old Stock, Stained

Availability:

3 in stock

Tapered roller bearing cone, 5-3/8 in bore, 1-11/16 in wide, Class 3, NA execution furnished for two-row service. Single cone: inner ring, rollers and cage.

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List Price

$99.07

3 in stock

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Specifications

Key Specifications

MFR / BrandTimken
MPNNA48390-3
ModelNA 48390 #3
Bearing TypeTapered Roller Bearing Cone
ID5.3750 in (136.525 mm)

Technical Specifications

Series48300
Mpn VariantsNA48390-3, NA-48390 *3, NA 48390 #3, NA48390, NA483903, 48390
Precision ClassClass 3
Rolling ElementsTapered Roller
Harmonization Code8482.20.00
Bearing MaterialHigh Alloy Steel
Cone Part NumberNA48390
Cone Width1.6875 in (42.863 mm)
Cone Backface To Clear Radius0.14 in
Seller Part Number: D4#VTEHEA

Product Description

What this part is:

Timken NA48390-3 is a Class 3 tapered roller bearing cone with a 5-3/8 in bore and a 1-11/16 in width. It is a single cone — inner ring, roller set and cage — in the NA execution furnished for two-row service.

Decoding the designation:

NA — cone furnished for two-row service. A single cone, not a double cone.

48390 — Timken’s inch tapered roller cone number in the 48300 series, 5-3/8 in bore.

-3 — Timken Class 3 precision: tighter tolerance and lower running vibration than standard Class 4 industrial parts.

What these specs mean in practice:

Bore Diameter: 5.3750 in (136.525 mm). Cone Width: 1.6875 in (42.863 mm). Precision Class: Class 3. Rolling Elements: Tapered Roller. Bearing Material: High Alloy Steel. Series: 48300.

Mounting data:

Cone Backface “To Clear” Radius: 0.14 in.

Quantity and configuration:

Unit Quantity: 1 Pc. Cone only, new old stock, stained.

Interchange guidance:

48390 is an industry-standard inch tapered roller cone number. Harmonization Code: 8482.20.00.

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