NTN 32018XU tapered roller bearing
- Brand
- NTN
- Category
- Bearings
- Subcategory
- Tapered roller bearings
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Decoding NTN 32018XU
- 320Series
- Tapered roller bearings, 320 series. Series differ in outside diameter and width even when the bore is the same.
- 18Bore
- Bore 90 mm (18 × 5).
- XUSuffix
- NTN suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.
32018 is the standard ISO basic designation, which sets the bearing type, series and bore.
Description
NTN 32018XU measures 90 mm across the bore and 140 mm across the outside diameter; its total width is 32 mm (90 x 140 x 32 mm).
NTN 32018XU belongs to tapered roller bearing, 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 32018XU and any equivalents.
Tapered roller bearings in the NTN XU series are built to carry radial and axial loads at the same time. The cone and cup arrangement creates linear contact between the rolling elements and the raceways, which spreads the load across the bearing. You will find them in industrial machinery, transmission equipment and other systems where rigidity and running accuracy matter. MR Industrial Accessories LLC supplies this series.
Reading the code helps you order the right part. Take 31320XU: the leading digits set the size and the dimensional series, and the XU ending marks characteristics specific to NTN production. The same pattern applies to 32019XU and 31330XU, where the numeric portion fixes dimensions and load capacity and the XU suffix groups variants that share particular attributes. Identify the full code before checking dimension and capacity tables.
These bearings show up across many industries in the United States and Latin America. Typical locations include gear reducer boxes, gear transmission systems, mining equipment, road machinery, flour mills and cement plants. You will also find them in the agro-industrial sector, on seeders and harvesters, and in railway applications. Because they take combined loads, they suit wheel axles, spindles and transmission shafts that call for high rigidity and rotational precision.
Selection depends on how large and how directed the loads are, the operating speed and the surrounding conditions. Mounting tapered rollers calls for precise alignment and correct adjustment of axial clearance, normally set with nuts, lock nuts or shims. Match the lubricant to temperature and speed, using grease for slow applications or oil for high revolutions. Sealing matters just as much, since keeping out dust and particles protects bearing service life.
On interchangeability, tapered roller bearings are made to international standards, so one brand can replace another when the main dimensions and load capacities line up. Check the complete code and the tolerances when you look for a substitute. MR Industrial Accessories LLC can point you to the right option from the original part code or from measurements you take on site.
For a quote on an NTN XU series tapered roller bearing, send the code or the measurements from your equipment by WhatsApp or email. The team replies promptly and quotes the exact reference, and can also help identify the part when you do not have the full code.
Dimensions
90 x 140 x 32 mm (d x D x T): boundary dimensions for basic designation 32018, according to ISO 355.
- Bore
- 90mm
- Outside diameter (D)
- 140mm
- Total width (T)
- 32mm
SKF and other brands, same size
Other brands' pages with basic designation 32018: 90 x 140 x 32 mm (d x D x T) per ISO 355.
- Need the SKF 32018? We can also quote:32018 X32018 X/Q32018 X/P52 more →
- FAG32018-X-XL
- RKB32018
- TIMKEN32018X
What they share are the ISO 355 boundary dimensions, not the specs: seals or shields, internal clearance, cage and load rating may vary with brand and suffix. Every quote is by full part number.
Frequently asked questions
- NTN 32018XU bearing: what are its dimensions?
- NTN 32018XU measures 90 mm across the bore and 140 mm across the outside diameter; its total width is 32 mm (90 x 140 x 32 mm). Those are the boundary dimensions standardized in ISO 355 for basic designation 32018.
- What does the XU suffix mean on NTN bearings?
- Within the tapered roller series, the XU suffix marks specific NTN manufacturing characteristics. You need the complete code and the manufacturer's technical tables to read it correctly. Send it to us by WhatsApp and we will help identify the exact reference.
- How do I choose the right tapered roller bearing for my application?
- Start with the radial and axial loads, the rotation speed, the temperature and the working environment. The mounting type and lubrication also come into play. With that information we can advise you and quote the NTN reference that fits your equipment.
- Are NTN XU series bearings interchangeable with other brands?
- Yes. Tapered roller bearings follow international dimension standards, so brands can be swapped when measurements and capacities match. Always confirm the complete code and the tolerances. Send us the original part code and we will indicate the compatible equivalent.