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Tapered roller bearing de doble hilera TIMKEN A4138D

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Tapered roller bearing de doble hilera TIMKEN A4138D

Manufacturer Part Number
A4138D
Brand
TIMKENOfficial brand
Category
Bearings
Subcategory
Tapered roller bearings
Series
TDO

TIMKEN

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Description

TIMKEN A4138D is a tapered roller bearing de doble hilera reference, within Bearings. Request a quote for A4138D via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The TIMKEN TDO series double row tapered roller bearing is an assembly of two rows of tapered rollers mounted on a common cone, designed to withstand radial and axial loads in both directions. It is used in applications requiring high load capacity and rigidity, such as gearboxes, drive shafts and mining equipment. MR Accesorios Industriales carries this line as an official brand in Buenos Aires, Argentina.

The TDO series designation is read from the assembly part number: for example, A2120D and A4138D combine a series number with the suffix D, which indicates double row. These part numbers identify the cone and the cup that make up the bearing. To select the right one, send us the complete part number shown on the equipment or on the nameplate; with that we will quote the exact reference or its compatible equivalent.

These bearings are used in heavy industry: speed reducers, conveyor roller shafts, mills, presses and road equipment. In Argentina you will find them in cement, oilseed, steel and mining plants. Their double row design absorbs combined loads and moments, which makes them suitable for assemblies requiring rigidity and precise shaft alignment.

For mounting, keep lubrication in mind: the TDO series accepts grease or oil depending on the environment. Check axial clearance and housing alignment; poor alignment shortens service life. Sealing is critical in dusty or humid environments: choose suitable radial shaft seals and ensure cleanliness during installation. If the original equipment has a specific part number, send it and we will indicate the alternative that best fits.

As for equivalents, double row tapered roller bearings are interchanged between manufacturers by series number and dimensions. Do not invent part numbers: compare bore, outside diameter and width, and load capacity. If you cannot find the exact part number, write to us on WhatsApp and we will help you identify the replacement compatible with your application.

MR Accesorios Industriales carries the TIMKEN brand as part of its bearing line. If you need a double row tapered roller bearing, send the part number on WhatsApp and we will quote it promptly. We can also advise you on mounting and lubrication so your equipment keeps running.

This description provides guidance on the product type. Check the configuration and dimensions of this reference.

Dimensions

Dimensions and tolerances: Send us the part number via WhatsApp and we'll confirm dimensions, sealing, and internal clearance against the manufacturer's data sheet.

Frequently Asked Questions

What does the D suffix in the TDO series mean?
The D suffix indicates that the bearing is double row, meaning it has two rows of tapered rollers mounted on a common cone. This allows it to withstand radial and axial loads in both directions, unlike single row bearings.
How do I request a quote for a TIMKEN TDO bearing?
Write to us on WhatsApp with the complete part number shown on the bearing or in the equipment manual. With that information we will quote the exact reference or, if it is not available, we will indicate the compatible alternative.
What should I keep in mind for mounting?
Check housing alignment, axial clearance and proper lubrication. In dusty or humid environments, use effective seals. A clean, aligned installation extends bearing service life.
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