NTN 30217U3EB 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 30217U3EB
- 302Series
- Tapered roller bearings, 302 series. For the same bore, each series has a different outside diameter and width.
- 17Bore
- 85 mm bore: 17 × 5.
- U3EBSuffix
- NTN suffix: it defines the variant (sealing, cage, internal clearance or other features).
30217 is the standard (ISO) basic designation: it defines the type, the series and the bore.
Description
The NTN 30217U3EB bearing has a 85 mm bore, a 150 mm outside diameter and a 30.5 mm total width (85 x 150 x 30.5 mm).
NTN 30217U3EB is a reference of tapered roller bearing, within Bearings. Request a quote for 30217U3EB 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 radial and axial loads in a single direction. Their tapered geometry allows linear contact that distributes the load better, ideal for applications with combined loads. They are used in reducers, wheel shafts, agricultural machinery and industrial equipment. At MR Accesorios Industriales we sell them and advise you so that you choose the correct part number for your equipment.
The designation of these bearings follows the NTN nomenclature: the base number indicates the dimension series, and the suffixes provide information about the internal design and tolerances. For example, in 30216U3EB and 30217U3EB, the prefix 302 corresponds to the single-row tapered roller series, while U3 and EB are suffixes that identify particular manufacturing characteristics. Learn more about how to interpret the codes by consulting our technical team.
In Argentine industry, these bearings are used in a wide variety of equipment: from gearboxes and speed reducers to road, agricultural and material handling machinery. They are also present in machine tool spindles and conveyor rollers. Their ability to support combined loads makes them indispensable in applications where precision and durability are critical.
To select the right bearing, take into account the radial and axial load it must support, the rotation speed and the environmental conditions. Mounting requires careful alignment and proper lubrication, since tapered rollers are sensitive to mounting errors. Sealing is another key factor: choose the type of seal according to contamination and working temperature. Incorrect mounting can drastically reduce the service life of the bearing.
There are equivalences between brands for tapered roller bearings, but it is essential to verify the exact dimensions and tolerances. If you have the code from another brand, we can help you find the equivalent NTN replacement. It is always advisable to consult our technical team before replacing a bearing, to ensure compatibility and performance.
If you need an NTN tapered roller bearing, write to us on WhatsApp with the code or the measurements you are looking for. At MR Accesorios Industriales we will quote you shortly and advise you so that your equipment keeps running without problems.
Dimensions
Boundary dimensions of the basic designation 30217 per ISO 355: 85 x 150 x 30.5 mm (d x D x T).
- Bore
- 85 mm
- Outside diameter (D)
- 150mm
- Total width (T)
- 30.5mm
Same size in SKF and other brands
Pages from other brands with the basic designation 30217: 85 x 150 x 30.5 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 30217U3EB bearing?
- The NTN 30217U3EB bearing has a 85 mm bore, a 150 mm outside diameter and a 30.5 mm total width (85 x 150 x 30.5 mm). These are the standardised boundary dimensions (ISO 355) of the basic designation 30217.
- What does the U3EB suffix mean in an NTN bearing?
- The U3 and EB suffixes indicate specific internal design and tolerance characteristics according to the NTN nomenclature. To correctly interpret your bearing's code, ask us with the complete code and we will advise you.
- How do I know if a tapered roller bearing is the right one for my application?
- You should consider the radial and axial load, the speed, the lubrication and the sealing. Our technical team can help you select the right bearing according to your equipment's conditions. Write to us on WhatsApp.
- Do you have equivalences with other brands?
- Yes, we can help you find the NTN bearing equivalent to other brands. If you send us the code or the measurements, we will tell you the compatible option and quote it shortly.