NTN 30312U2FB tapered roller bearing
- Brand
- NTN
- Category
- Bearings
- Subcategory
- Tapered roller bearings
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Since 1945 · Martínez, Buenos Aires, Argentina
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How to read NTN 30312U2FB
- 303Series
- Tapered roller bearings, 303 series. For the same bore, each series has a different outside diameter and width.
- 12Bore
- 60 mm bore: 12 × 5.
- U2FBSuffix
- NTN suffix: it defines the variant (sealing, cage, internal clearance or other features).
30312 is the standard (ISO) basic designation: it defines the type, the series and the bore.
Description
The NTN 30312U2FB bearing has a 60 mm bore, a 130 mm outside diameter and a 33.5 mm total width (60 x 130 x 33.5 mm).
NTN 30312U2FB is a reference of tapered roller bearing, within Bearings. Request a quote for 30312U2FB via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
NTN U FB series tapered roller bearings are components designed to withstand combined radial and axial loads. Their tapered geometry allows linear contact that distributes the load over a larger surface, providing high load capacity and rigidity. They are used in applications requiring precision and durability, such as gearboxes, transmission shafts and industrial equipment. MR Accesorios Industriales sells this series backed by its experience in the field.
The designation of the U FB series is interpreted from its letters and numbers. For example, the code 30312U2FB combines the basic number indicating dimensions and the suffix U2FB, which identifies internal features such as the contact angle or cage design. The letter U usually indicates a special execution, while FB refers to a particular cage or tolerance design. To select the correct bearing, it is essential to know these variants and their application.
These bearings are used in industries such as food, metallurgy and mining in Argentina. They are found in speed reducers, machine tools, pumps and conveying equipment. Their ability to withstand combined loads makes them ideal for assemblies where the shaft must resist simultaneous axial and radial forces. In the industrial field, they are a frequent choice for demanding applications.
For a correct selection, take into account the type of sealing, internal clearance and lubrication. Precise alignment during mounting is crucial to avoid premature wear. Tapered roller bearings are usually mounted in pairs, with preload adjustment, to ensure optimal operation. Proper lubrication, whether with grease or oil, extends service life and reduces maintenance.
As for equivalences, tapered roller bearings from different manufacturers can be interchanged if dimensions and tolerances match. It is important to verify the technical specifications and cage design. If you need to replace a bearing from another brand, we can help you find the compatible reference. MR Accesorios Industriales advises you so that the substitution is safe and efficient.
To request a quote for the bearing you need, send the code or size via WhatsApp. We reply promptly with the information and available alternatives. At MR Accesorios Industriales we work so that you find the right part for your equipment, with the quality of leading brands such as NTN.
Dimensions
Boundary dimensions of the basic designation 30312 per ISO 355: 60 x 130 x 33.5 mm (d x D x T).
- Bore
- 60 mm
- Outside diameter (D)
- 130mm
- Total width (T)
- 33.5mm
Same size in SKF and other brands
Pages from other brands with the basic designation 30312: 60 x 130 x 33.5 mm (d x D x T) per ISO 355.
- Looking for the SKF 30312? We also quote:30312 J2/Q30312/VA983
- FAG30312-XL
- RKB30312
- TIMKEN30312
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 30312U2FB bearing?
- The NTN 30312U2FB bearing has a 60 mm bore, a 130 mm outside diameter and a 33.5 mm total width (60 x 130 x 33.5 mm). These are the standardised boundary dimensions (ISO 355) of the basic designation 30312.
- What does the U2FB suffix mean on an NTN bearing?
- The U2FB suffix indicates specific design features, such as the contact angle or cage type. To interpret it correctly, you need to consult the complete designation and the specifications of the NTN catalogue. We help you identify the exact variant you need.
- How are tapered roller bearings mounted?
- They are generally mounted in pairs, with preload adjustment, to withstand loads in both directions. It is essential to correctly align the shaft and housing, and to lubricate properly. Follow the manufacturer's recommendations to ensure optimal performance.
- Can I replace a bearing from another brand with an NTN one?
- Yes, if dimensions and tolerances match. Tapered roller bearings are interchangeable between manufacturers when specifications are equivalent. Send us the code of the original part and we will tell you the compatible NTN reference.