NTN 4T-320/28X tapered roller bearing
- Brand
- NTN
- Category
- Bearings
- Subcategory
- Tapered roller bearings
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Description
NTN 4T-320/28X 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 4T-320/28X and any equivalents.
NTN tapered roller bearings are built to carry radial and axial loads at the same time. The cone and cup geometry creates a linear contact path that spreads the load over a wider area, which gives the bearing high capacity and rigidity. You will find them in transmission cases, gear reducers and other industrial equipment where precision and durability matter.
The part number tells you what you are holding. Take 4T-320/22X: the 4T prefix marks the tapered roller series, and 320/22X sets the dimensions and contact angle. In 4T-455/453X, the 455 and 453X identify the cone and cup that make up the assembly. A trailing X points to a design change, such as a chamfer or a special tolerance. Reading these codes correctly speeds up selection and helps you avoid mismatches.
These bearings show up in automotive, metallurgical, cement and food processing operations. Common locations include gearboxes, wheel axles, speed reducers, mills and material handling equipment. Because they take combined loads, they suit arrangements with simultaneous radial and axial forces, such as helical gears or transmission shafts.
Selection starts with the radial and axial load, the operating speed and the environment. During assembly, precise alignment prevents extra stresses. Lubrication can be grease or oil depending on the application, and sealing should match the contamination level. The internal clearance must be right to absorb thermal expansion. Follow the manufacturer's instructions for mounting and commissioning.
NTN tapered roller bearings can be exchanged with other brands that use the same standardized dimensions, but tolerances and internal design can differ, so verify the exact equivalence. If you have a code from another brand, we can identify the corresponding NTN reference. Interchange is not always direct; share your application data and we will confirm a suitable replacement.
To request a quote, send the part number or measurements by WhatsApp or email. We reply promptly with technical information and can suggest equivalents or help you choose.
Dimensions
Dimensions and tolerances: Message us the part number on WhatsApp and we'll verify its dimensions and version with the manufacturer's datasheet.
Frequently asked questions
- What does the 4T prefix mean in NTN bearings?
- The 4T prefix identifies NTN's tapered roller series. It signals a specific design with dimensional and load capacity characteristics typical of this line, and it is part of the nomenclature that helps you identify the bearing type and its applications.
- How do I choose between a tapered roller bearing and a ball bearing?
- Tapered rollers support higher combined loads and offer greater rigidity, which suits heavy applications. Ball bearings are better for pure radial loads and higher speeds. The choice depends on the magnitude and direction of the loads and on the operating conditions.
- Can I replace a bearing from another brand with an NTN one?
- Yes, if the main dimensions match according to standards. NTN manufactures with standard tolerances that allow interchangeability. Consult us with the original code or measurements to verify the exact equivalence and avoid assembly problems.