TIMKEN NA3780SW tapered roller bearing de doble hilera

TIMKEN NA3780SW belongs to tapered roller bearing de doble hilera, 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 NA3780SW and any equivalents.

The TNASW series from TIMKEN covers double row tapered roller bearings. Two rows of tapered rollers run on a common shaft, so the bearing takes radial and axial forces in both directions. You will find this design in gearboxes, mining equipment, steel mills and other heavy machinery where stiffness and load capacity matter. MR Industrial Accessories LLC supplies this line to customers in the United States and Latin America.

Reading the code helps you avoid ordering the wrong variant. The first three letters, TNA, place the bearing in the double row tapered family. The S tells you it is built as a single unit, without a separate cone. The W points to a design variation, which may involve the cage or the sealing arrangement. The digits and letters that follow, as in NA435SW, NA438SW or NA455SW, set the size and the mounting dimensions. Because a different suffix can change sealing, internal clearance or precision, the complete code is what we need for an accurate quote.

These bearings suit plants that cannot afford downtime under heavy loads. Typical settings include speed reducers, kiln rollers, mills, presses and road machinery, as well as mining, cement, steel, paper, cranes and material handling operations. A double row unit can often do the job of two single row bearings in one housing, which simplifies the design and adds rigidity to the assembly. For maintenance teams, that means fewer components to track and a more compact mounting.

Selecting a TNASW bearing starts with the load case: how much radial and axial force the application produces, at what speed, with which lubrication and sealing. Alignment of shaft and housing is critical; even small misalignment speeds up wear. During mounting, use the right tools, never strike the rings directly, and check internal clearance against the application. Grease or oil both work, and the seal choice depends on dust, water and temperature at the site. When in doubt, send the full code and we will help you narrow it down.

Interchange between brands is possible for double row tapered roller bearings when dimensions, load capacity and sealing configuration line up. A similar number is not enough; tolerances and clearance also have to match. TIMKEN is a well-known name in this family, and MR Industrial Accessories LLC supplies it. If you are replacing a bearing from another maker, send us the original code and we will point you to a compatible option.

To request a quote, message us on WhatsApp with the complete code. Examples such as NA483SW, NA484SW, NA495SW or NA497SW let us identify the exact size and come back with the right option. If you cannot find your reference, send the model or the dimensions instead. Our team replies promptly and can suggest equivalents when needed.