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NTN tapered roller bearing · NTN 4T-387AS/382A
NTN 4T-387AS/382A tapered roller bearing

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NTN 4T-387AS/382A tapered roller bearing

Manufacturer part number4T-387AS/382AAlso known as: 4T387AS/382A · 4T 387AS/382A
Brand
NTN
Category
Bearings
Series
J
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Description

NTN 4T-387AS/382A 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-387AS/382A and any equivalents.

The NTN J series tapered roller bearing handles combined radial and axial loads. Its tapered rollers and inclined raceways spread the load across a wider contact area than a ball bearing, which suits demanding machinery. You will find it in industrial equipment, automotive components and power transmission systems where precision and durability matter. MR Industrial Accessories LLC supplies this series.

The part number tells you what you are holding. Take 4T-387AS/382A: the 4T- prefix marks the NTN tapered roller bearing series, the numbers 387AS and 382A identify the cone and the cup, and the AS and A suffixes point to design variants such as contact angle or radii. Reading the code correctly is the first step in matching a replacement to the application.

These bearings show up in gearboxes, transmission shafts, vehicle wheels, agricultural machinery, mining equipment and conveying systems. Because they take radial and axial forces at the same time, they fit mills, presses and earthmoving equipment where uptime depends on robust components. MR Industrial Accessories LLC serves customers across the United States and in several Latin American countries.

Selection starts with the radial and axial load the bearing must carry, then the rotation speed and the environment. Mounting calls for precise alignment and proper lubrication, since tapered rollers do not tolerate misalignment well. Sealing keeps contamination out and lubricant in. On demanding jobs, check internal clearance and use the right mounting tools to achieve a correct fit.

Tapered roller bearings from different brands can be interchangeable when dimensions and designation match, but tolerances and internal design can differ. NTN offers a range of tapered roller bearings with various suffixes for different applications. When replacing an existing bearing, compare the technical specifications and ask a specialist to confirm compatibility.

To request a quote for an NTN J series tapered roller bearing, send the part number or the size you need via WhatsApp or email. The team replies promptly and can suggest equivalents or help you choose the right bearing for your equipment.

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 designation 4T-387AS/382A mean?
The 4T- prefix indicates the NTN tapered roller bearing series. The numbers 387AS and 382A correspond to the cone and the cup. The suffixes AS and A indicate design variants, such as contact angle or radii. This nomenclature lets you identify the dimensions and characteristics of the bearing.
Where are NTN J series tapered roller bearings used?
They are used in applications that support combined radial and axial loads, such as gearboxes, transmission shafts, agricultural machinery, mining and conveying equipment. They are also common in mills, presses and earthmoving equipment, where robustness and reliability are essential.
How can I request a quote for an NTN J series bearing?
Send the part number or the size you need via WhatsApp or email. MR Industrial Accessories LLC will quote it promptly. If you have doubts about the designation, the technical team can advise you so you select the correct bearing.
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