
NTN E-LM665949D/LM665910/LM665910D tapered roller bearing de doble hilera
- Brand
- NTN
- Category
- Bearings
- Subcategory
- Tapered roller bearings
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Description
NTN E-LM665949D/LM665910/LM665910D belongs to tapered roller bearing de doble hilera, part of our Bearings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for E-LM665949D/LM665910/LM665910D and any equivalents.
NTN double row tapered roller bearings carry radial and axial loads in both directions. Two rows of tapered rollers run on inclined raceways, which is what gives these units their high capacity. You will find them in industrial machinery, mining, cement and steel equipment, where precision and durability matter. MR Industrial Accessories LLC supplies this line to customers in the United States and Latin America.
Reading the designation is the first step. The E- prefix marks an improved design with higher load capacity. References starting with LM and ending in D identify the cone, the inner ring with two rows; the same reference without the D suffix is the single cup, or outer ring. The D suffix also points to an internal modification, such as a stronger cage or a surface treatment. A complete assembly is the cone and cup together, so both components should be quoted as a pair.
Typical applications include large gearboxes, cement mills, ore crushers, port cranes and earthmoving equipment. Mining, cement and steel operations rely on them, as do oilseed processing machinery and railway equipment. Because the double row design does two single row bearings' work in less space, mounting is simpler and assembly precision improves.
Selection comes down to radial and axial load, rotation speed and the environment around the bearing. Alignment and lubrication need attention at mounting, with grease or oil depending on the application. Sealing keeps dust and particles out, so adding radial shaft seals is worth evaluating. Set internal clearance to match the equipment tolerances; too much clearance brings vibration and shortens service life. Use the right tools for installation and keep an eye on operating temperature.
NTN double row tapered roller bearings interchange with equivalent references from other leading brands when dimensions and load capacities match. Check the full designation and the tolerances, since small design differences can affect performance. If you have a part number from another brand, we can point you to the equivalent NTN reference and advise on the best fit for the application.
Send the complete part number by WhatsApp or email to request a quote. Our team replies promptly and can help identify a part if the designation is unclear, or suggest equivalents when needed.
Dimensions
Dimensions and tolerances: Message us the part number on WhatsApp and we'll verify its dimensions and version with the manufacturer's datasheet.
Frequently asked questions
- What does the E- prefix in the designation mean?
- It indicates an improved NTN design with higher load capacity and internal optimization. These bearings typically use stronger cages and tighter tolerances, which suits severe applications.
- How do I choose between a double row bearing and two single row ones?
- A double row bearing gives greater rigidity and capacity in one assembly, which simplifies mounting and saves space. If the equipment sees high precision and combined loads, this is the option to consider. Send us a message on WhatsApp for advice.
- What lubrication do you recommend for these bearings?
- It depends on operating speed and temperature. Oil suits high speeds; high-viscosity grease works for moderate speeds and contaminated environments. Follow the equipment manufacturer's specifications.

