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Tapered roller bearing de doble hilera TIMKEN 44348D
- Manufacturer Part Number
- 44348D
- Brand
- TIMKENOfficial brand
- Category
- Bearings
- Subcategory
- Tapered roller bearings
- Series
- TNA
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Description
TIMKEN 44348D is a tapered roller bearing de doble hilera reference, within Bearings. Request a quote for 44348D via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
The double row tapered roller bearing is an assembly of two rows of tapered rollers mounted on a common axis, designed to withstand radial and axial loads in both directions. It is used in applications requiring high load capacity and rigidity, such as gearboxes, transmission shafts and mining equipment. MR Accesorios Industriales supplies the Timken brand with technical advice to select the right configuration.
The designation of these Timken bearings combines a base number with the suffix D, which indicates double row. For example, the 353D series groups variants such as 353D, 363D, 375D, 384D, 394D, 432D, 452D and 472D. Each code identifies an assembly of two rows with a specific cup and cone design. The TDO, TDI and TNA series organize the different configurations according to their geometry and application.
In Argentine industry, these bearings are used in speed reducers, road machinery, crushing equipment, mills, cranes and heavy transmission systems. They also appear in roll shafts of rolling mills and in large gearboxes. Their ability to withstand combined loads makes them suitable for demanding environments with vibration and shock.
To select the right bearing, consider radial and axial load, rotation speed and environmental conditions. Mounting requires precise alignment and proper adjustment of axial clearance, achieved with shims or precision nuts. Lubrication can be with grease or oil, depending on the application, and sealing must protect against contaminants. Correct installation extends the service life of the assembly.
Timken double row bearings can be interchanged with equivalent products from other brands, as long as dimensions and load capacities are respected. It is essential to verify the complete designation and tolerances. At MR Accesorios Industriales we advise you to find the compatible alternative or the special manufacturing you need.
If you have the code of your bearing, write to us on WhatsApp and we will quote it promptly. We can also help you identify the TDO, TDI or TNA series that best suits your equipment. With more than 80 years in the market, MR Accesorios Industriales is your partner for bearings and power transmission.
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 mean in a Timken bearing?
- The D suffix indicates that it is a double row tapered roller bearing. This means it has two rows of rollers mounted on the same axis, allowing it to withstand radial and axial loads in both directions.
- How do I choose between the TDO, TDI and TNA series?
- The choice depends on the mounting arrangement, required load capacity and available space. The TDO series is used in configurations with double cup, TDI with double cone and TNA for specific applications. Consult us with the data of your equipment.
- What should I consider for mounting?
- Precise alignment, correct adjustment of axial clearance and adequate lubrication are key. Effective sealing must also be ensured to prevent the entry of contaminants. Follow the manufacturer's recommendations and consult our technical team if in doubt.

