Product page
Tapered roller bearing NTN 30313U2GB
- Manufacturer Part Number
- 30313U2GB
- Brand
- NTNOfficial distributor
- Category
- Bearings
- Subcategory
- Tapered roller bearings
![]()
We respond promptly.
Request your quote via WhatsApp or email, with the quantity and time frame 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.
Description
NTN 30313U2GB is a tapered roller bearing reference, within Bearings. Request a quote for 30313U2GB via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
NTN U GB series tapered roller bearings are single-row roller units that handle radial and axial loads in one direction. The tapered raceway and the oblique contact between rollers and raceways distribute the load over a larger surface than a deep groove ball bearing. They are used in pairs or matched sets to position shafts and absorb combined forces in transmissions, gearboxes and plant equipment.
The designation of this series is read in blocks: the initial number indicates the size and dimensional series, and the U and GB suffixes define the internal design and the finish of the assembly. In the examples 30313U2GB, 30314U2GB, 30315U2GB, 30316U2GB and 30317U2GB you can see how the size changes as the number increases, while the U GB suffix remains. To order the correct replacement, provide the complete code exactly as it appears on the part or on the drawing.
In Argentine industry they appear in gearboxes, pumps, fans, conveyors, road machinery, milling equipment and rolling mill trains. They are also found in the food sector and in aggregate processing plants, where the shaft receives radial load and axial thrust at the same time. Because they are separable, they allow inspection of rollers and raceways without replacing the entire assembly when wear is partial.
For proper selection, define the radial and axial load, the rotation speed, the shaft diameter and the type of fit. Mounting is done with a press or controlled heating, never by striking the cage. Grease or oil lubrication must cover the rollers and raceways, and the alignment between the two rows defines the axial clearance. Correct sealing prevents the entry of dust and water, which accelerates raceway wear.
Cross-references between brands are handled by dimensions and by the series code: a tapered bearing from another brand with the same outer and inner dimensions can be interchanged, but it is advisable to verify the contact angle and the suffix. If you have the part in hand or the code from another brand, send it via WhatsApp to MR Accesorios Industriales and we will quote the equivalent NTN reference or the exact size you need.
MR Accesorios Industriales is an official distributor of NTN and sells NTN bearings in Buenos Aires, Argentina, with more than 80 years of experience in the field. If you are looking for a U GB series code or a specific size, write to us via WhatsApp with the model and we will quote it promptly.
This description provides guidance on the product type. Check the configuration and dimensions of this reference.
Dimensions
- Eje o agujero
- 65 mm
Frequently Asked Questions
- What does the U GB suffix mean on an NTN tapered roller bearing?
- The suffix identifies the internal design and the finish of the assembly within the series. To avoid mistakes, provide the complete part code, for example 30314U2GB, and we will quote that exact reference.
- How is a tapered roller bearing mounted?
- It is mounted with a press or controlled heating, without striking the cage or the rollers. The alignment between the two rows defines the axial clearance, and lubrication must cover raceways and rollers before closing the assembly.
- Can I replace a tapered bearing from another brand with an NTN one?
- Yes, when the shaft and housing dimensions match. It is advisable to verify the contact angle and the suffix. Send the code of the brand you have via WhatsApp and we will indicate the NTN equivalent.

