NTN 32215U4DC tapered roller bearing
- Brand
- NTN
- Category
- Bearings
- Subcategory
- Tapered roller bearings
We respond promptly.
Since 1945 · Martínez, Buenos Aires, Argentina
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How to read NTN 32215U4DC
- 322Series
- Tapered roller bearings, 322 series. For the same bore, each series has a different outside diameter and width.
- 15Bore
- 75 mm bore: 15 × 5.
- U4DCSuffix
- NTN suffix: it defines the variant (sealing, cage, internal clearance or other features).
32215 is the standard (ISO) basic designation: it defines the type, the series and the bore.
Description
The NTN 32215U4DC bearing has a 75 mm bore, a 130 mm outside diameter and a 33.25 mm total width (75 x 130 x 33.25 mm).
NTN 32215U4DC is a reference of tapered roller bearing, within Bearings. Request a quote for 32215U4DC via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
The tapered roller bearing is a component designed to withstand combined radial and axial loads, thanks to the inclined arrangement of its rollers and the tapered geometry of its raceways. It is used in applications that require high load capacity and rigidity, such as gearboxes, wheel hubs and industrial equipment. At MR Accesorios Industriales we sell the NTN line for the Argentine market, with the technical assistance you need to choose the correct part number.
The designation of NTN tapered roller bearings combines numbers and letters that identify dimensions and variants. In the series we carry, the example part number 32215U4DC reads as follows: the first digits indicate the size and dimensional series; the U4 suffix indicates a special cage or tolerance execution; and DC refers to a duplex arrangement, with two bearings paired for loads in both directions. To correctly interpret each case, the best thing is to consult our technicians.
These bearings are used in a wide variety of industries in Argentina: from metallurgy and food to mining and oil. They are present in reducers, gearboxes, machine tool spindles, conveyor rollers and vehicle axles. Their ability to withstand combined loads and their rigidity make them ideal for demanding environments, where precision and durability are critical.
To select the right bearing, take into account the magnitude and direction of the loads, the rotation speed and the environmental conditions. Assembly requires careful alignment and adequate lubrication, either with grease or oil, depending on the application. Sealing is key to retaining the lubricant and excluding contaminants; therefore, evaluate the type of seal if the equipment operates in dirty or humid environments. Incorrect assembly can reduce the bearing's service life.
Tapered roller bearings are interchangeable between brands as long as the main dimensions and the raceway angle match. If you have the part number of another brand, we can identify the corresponding NTN equivalent. We can also advise you on tolerances and internal clearance so that the replacement is reliable. Do not hesitate to ask us about any part number or size you need.
At MR Accesorios Industriales we are here to help you find the right bearing for your application. Send us the part number or measurements by WhatsApp and we will quote it shortly. If you need technical assistance, our team can guide you in selection and assembly.
Dimensions
Boundary dimensions of the basic designation 32215 per ISO 355: 75 x 130 x 33.25 mm (d x D x T).
- Bore
- 75 mm
- Outside diameter (D)
- 130mm
- Total width (T)
- 33.25mm
Same size in SKF and other brands
Pages from other brands with the basic designation 32215: 75 x 130 x 33.25 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 32215U4DC bearing?
- The NTN 32215U4DC bearing has a 75 mm bore, a 130 mm outside diameter and a 33.25 mm total width (75 x 130 x 33.25 mm). These are the standardised boundary dimensions (ISO 355) of the basic designation 32215.
- What does the U4DC suffix mean on an NTN bearing?
- The U4 suffix indicates a special execution variant, which may refer to the cage or particular tolerances. DC indicates a duplex arrangement, that is, two bearings paired to withstand axial loads in both directions. Ask us about the exact part number and we will advise you.
- How do I know if a tapered roller bearing is compatible with my equipment?
- You must verify the main dimensions (bore, outer diameter and width) and the raceway angle. If you send us the original part number or the measurements, we can identify the NTN equivalent and quote you the correct part.
- What lubrication do you recommend for tapered roller bearings?
- The choice depends on speed, temperature and environment. It can be grease or oil, but it is essential to maintain an adequate lubricating film. For applications with contaminants, we recommend lubricants with EP additives and effective sealing.