NTN 33118U3DE tapered roller bearing
- 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.
How to read NTN 33118U3DE
- 331Series
- Tapered roller bearings, 331 series. For the same bore, each series has a different outside diameter and width.
- 18Bore
- 90 mm bore: 18 × 5.
- U3DESuffix
- NTN suffix: it defines the variant (sealing, cage, internal clearance or other features).
33118 is the standard (ISO) basic designation: it defines the type, the series and the bore.
Description
The NTN 33118U3DE bearing has a 90 mm bore, a 150 mm outside diameter and a 45 mm total width (90 x 150 x 45 mm).
NTN 33118U3DE is a reference of tapered roller bearing, within Bearings. Request a quote for 33118U3DE via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
NTN tapered roller bearings are components designed to support combined radial and axial loads. Their construction with tapered races and rollers allows linear contact that distributes the load and provides high load capacity. They are used in applications requiring rigidity and precision, such as transmission boxes, gear reducers, wheel axles and industrial machinery. At MR Accesorios Industriales we sell them as part of our bearing line for the Argentine market.
The designation of these bearings combines numbers and letters that indicate key characteristics. In these codes, the first digits identify the dimension series, the letter U indicates a unit cup and cone design, the following digit may refer to cage or angle variants, and DE usually indicates a precision or special treatment suffix. The examples 33116U3DE, 33117U3DE and 33118U3DE show how the size varies within the same family. Learn more about this nomenclature by consulting our technical team.
These bearings are used in industries such as automotive, metallurgical, cement and food. In Argentina, they are common in earthmoving equipment, conveyor belts, mills and machine tools. Their ability to support combined loads makes them ideal for applications with rotating shafts that receive simultaneous radial and axial forces, ensuring smooth and durable operation under demanding conditions.
To select the right bearing, take into account the radial and axial load, the rotation speed and the environmental conditions. It is essential to verify the sealing: open bearings require external lubrication and protection against contaminants, while sealed versions offer greater grease retention. Mounting must ensure precise alignment to avoid premature wear. Proper lubrication, whether with grease or oil, extends service life. Follow the manufacturer's recommendations for internal clearance and tightening.
When looking for replacements, it is possible to find equivalences between brands, but it is crucial to verify dimensions and load capacities. Tapered roller bearings are often interchangeable between manufacturers if the series and suffixes match. However, differences in tolerances or materials can affect performance. If you have the code from another brand, we can help you identify the equivalent NTN reference. Always confirm with our technical team before replacing.
To request a quote for these NTN tapered roller bearings, send the code or size you need via WhatsApp. At MR Accesorios Industriales we advise you so you can find the right solution for your application. We support Argentine industry with quality products and personalized attention. Write to us and we will respond promptly.
Dimensions
Boundary dimensions of the basic designation 33118 per ISO 355: 90 x 150 x 45 mm (d x D x T).
- Bore
- 90 mm
- Outside diameter (D)
- 150mm
- Total width (T)
- 45mm
Same size in SKF and other brands
Pages from other brands with the basic designation 33118: 90 x 150 x 45 mm (d x D x T) per ISO 355.
They share the boundary dimensions set by ISO 355, not the technical data: seals or shields, internal clearance, cage and load rating can differ by brand and suffix. We quote each one by its full part number.
Frequently Asked Questions
- What are the dimensions of the NTN 33118U3DE bearing?
- The NTN 33118U3DE bearing has a 90 mm bore, a 150 mm outside diameter and a 45 mm total width (90 x 150 x 45 mm). These are the standardised boundary dimensions (ISO 355) of the basic designation 33118.
- What does the designation 33114U3DE mean?
- The designation combines numbers that indicate the dimension series and letters that indicate characteristics such as the unit design (U) and precision or treatment suffixes (DE). Each part identifies specific attributes of the bearing. To correctly interpret your code, consult us via WhatsApp.
- How do I choose between a sealed and an open bearing?
- Sealing protects against contaminants and retains lubrication, ideal for dirty or humid environments. Open bearings allow higher speed and facilitate external lubrication. The choice depends on the conditions of your application. Our technical team can advise you according to your case.
- Can I replace a bearing from another brand with an NTN one?
- Yes, if the dimensions and load capacity match. Tapered roller bearings are often interchangeable between brands, but check tolerances and materials. If you send us the code of the original part, we will indicate the equivalent NTN reference and quote it for you.