

NTN E-M257149D/M257110/M257110D tapered roller bearing de doble hilera
- Brand
- NTN
- Category
- Bearings
- Subcategory
- Tapered roller bearings
We respond promptly.
Since 1945 · Martínez, Buenos Aires, Argentina
Request your quote via WhatsApp or email, with the quantity you need.
Can't find the exact model? Write to us with the part number or model you're looking for: we'll find it and quote it, even if it's not listed in the catalog.
Description
NTN E-M257149D/M257110/M257110D is a reference of tapered roller bearing de doble hilera, within Bearings. Request a quote for E-M257149D/M257110/M257110D via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
The double row tapered roller bearing is an assembly that integrates two rows of tapered rollers in a single unit, allowing it to support radial and axial loads in both directions. It is used in applications requiring high load capacity and rigidity, such as gearboxes, final drives and mining equipment. MR Accesorios Industriales sells the NTN line with technical advice to select the correct part number.
The designation of these NTN bearings is structured with a prefix and suffixes that indicate features of the assembly. The letter E indicates a special design, M identifies the dimension series, and the final D on the cone and cup indicates a double row design. The part numbers follow the same logic: a double cone and two single cups that are combined to form the complete bearing. Learn more about the M series and its variants by consulting MR.
These bearings are used in Argentine industries such as mining, cement, steel and earthmoving. They are found in speed reducers, overhead cranes, mills, crushers and railway equipment. Their ability to support combined loads and their rigidity make them suitable for assemblies where the shaft must remain aligned under severe conditions. MR Accesorios Industriales supplies these NTN bearings to workshops and plants throughout the country.
To select the correct bearing, take into account the radial and axial load it must support, the rotation speed and the environmental conditions. Assembly requires precise alignment and adequate lubrication, either with grease or oil, depending on the sealing type. The E-M series usually incorporates seals to retain lubricant and exclude contaminants. It is essential to verify the internal clearance and the tightening of the components to avoid premature failures. Our technical team can guide you in the selection.
NTN double row tapered roller bearings can be interchanged with equivalent products from other brands, as long as the dimensions and load capacities are respected. When looking for a replacement, it is important to compare not only the diameter and width, but also the contact angle and the internal design. If you have the part number from another brand, we can help you find the equivalent NTN reference. Interchangeability must be validated with the technical specifications of each application.
To request a quote for the bearing you need, send the complete part number by WhatsApp to MR Accesorios Industriales. We will reply shortly with availability and commercial terms. If you cannot find the exact reference, write to us with the model or measurements and we will advise you to get it.
Dimensions
Dimensions and tolerances: Send us the part number via WhatsApp and we'll confirm the dimensions and version against the manufacturer's data sheet.
Frequently Asked Questions
- What does the E-M designation mean in NTN bearings?
- The letter E indicates a special design and the M identifies the dimension series. The D suffixes indicate the double row design. Each part number combines a double cone and two cups to form the assembly.
- How do I choose the right double row tapered roller bearing?
- Consider the radial and axial loads, speed, lubrication and sealing. Alignment and internal clearance are critical. Our technical team can advise you with the part number or the measurements of your application.
- Can I replace a bearing from another brand with an NTN one?
- Yes, if the dimensions, load capacity and contact angle match. Interchangeability must be verified with the specifications. If you send us the original part number, we will indicate the equivalent NTN reference.
