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Tapered roller bearing NTN 4T-LM503349A†/LM503310††
- Manufacturer Part Number
- 4T-LM503349A†/LM503310††
- Brand
- NTNOfficial distributor
- Category
- Bearings
- Subcategory
- Tapered roller bearings
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Description
NTN 4T-LM503349A†/LM503310†† is a tapered roller bearing reference, within Bearings. Request a quote for 4T-LM503349A†/LM503310†† via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
NTN J series tapered roller bearings are components designed to withstand combined radial and axial loads. Their cone and cup geometry allows adjustable mounting, ideal for applications requiring high load capacity and rigidity. MR Accesorios Industriales sells this line for industrial equipment in Buenos Aires, Argentina.
The designation of these bearings combines a series number with letters that indicate specific characteristics. For example, in 4T-LM48548A/LM48510, the prefix 4T identifies the series, LM48548A is the cone and LM48510 the cup. The final letter A on the cone may indicate a design variant, while the suffixes † or †† in other examples such as 4T-LM104947A†/LM104911 or 4T-LM503349A†/LM503310†† usually refer to modifications in tolerances or surface treatments. Knowing these codes helps select the correct bearing.
These bearings are used in a wide variety of industries in Argentina, such as metalworking, food, mining and agriculture. They are found in gearboxes, reducers, drive shafts, conveyor rollers and food processing machinery. Their ability to withstand combined loads makes them suitable for demanding applications, such as flour mills, presses and earthmoving equipment.
To select the right bearing, it is essential to consider radial and axial load, operating speed and environmental conditions. Mounting requires precise alignment and correct axial adjustment to distribute loads evenly. Lubrication must be suitable for the temperature and speed, and sealing must protect against contaminants. Incorrect mounting can reduce bearing life.
As for equivalences, tapered roller bearings from different manufacturers can be interchanged if dimensions and load capacity match. It is important to verify equivalent codes and tolerances. MR Accesorios Industriales can advise you on interchangeability and quote the alternative that best suits your equipment.
If you need an NTN J series tapered roller bearing, send us the part number or measurements via WhatsApp. At MR Accesorios Industriales we'll quote it shortly and indicate the compatible alternative if necessary. We have more than 80 years of experience in the field, since 1945, and we are in Buenos Aires, Argentina.
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 J series mean in NTN tapered bearings?
- The J series is an internal NTN designation that groups tapered roller bearings with specific dimensional and load capacity characteristics. Within this series, codes such as LM48548A/LM48510 indicate the corresponding cone and cup.
- How can I tell if an NTN tapered bearing is compatible with my equipment?
- To verify compatibility, compare the bearing dimensions (bore, outer diameter and width) and the required load capacity. If you have the original part number, we can quote you the NTN equivalent. Send the data via WhatsApp and we'll advise you.
- What care does the mounting of a tapered roller bearing require?
- Mounting must ensure precise alignment and adequate axial adjustment to avoid point loads. It is important to lubricate correctly and protect the bearing against contaminants. Follow the manufacturer's recommendations and use suitable tools for mounting.

