Tapered roller bearing de doble hilera TIMKEN NA691A

TIMKEN NA691A is a tapered roller bearing de doble hilera reference, within Bearings. Request a quote for NA691A via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The TIMKEN TNA series double row tapered roller bearing is an assembly that combines two rows of tapered rollers in a single frame, designed to withstand radial and axial loads in both directions. It is used in applications requiring high load capacity and rigidity, such as gearboxes, final drives and mining equipment. MR Accesorios Industriales supplies this line as an official brand in Buenos Aires, Argentina.

The TNA series designation is built with an NA prefix followed by a three-digit number and the final letter A, as in NA495A or NA691A. That combination identifies the size and design features of the assembly. The TNA series corresponds to double row bearings, with two rows of tapered rollers mounted on the same shaft. To correctly interpret each reference, the best approach is to check the complete part number with our technical team, who will guide you on the exact variant.

These bearings are chosen for applications where combined loads are demanding: industrial gearboxes, speed reducers, material handling equipment, machinery for the cement and mining industries. In Argentina, we see them in crushing plants, mills, conveyors and continuous process equipment. Their double row construction absorbs radial and axial forces in both directions, which simplifies the housing design and improves the stability of the rotating assembly.

To select the correct bearing, take into account the radial and axial load it must withstand, the rotational speed and the environmental conditions. The TNA series is usually mounted with an interference fit on the shaft and in the housing, depending on the type of load. It is essential to verify alignment between shaft and housing, and to choose the right lubricant: grease or oil, with the viscosity and additives required by the application. Sealing or additional protection depends on the level of contamination in the environment.

Regarding equivalents, double row tapered roller bearings are identified by their specific designation and are not always interchangeable between brands without verifying dimensions and tolerances. TIMKEN has its own nomenclature for this series, and other brands may offer similar products with different part numbers. If you need to replace an existing bearing, the safest approach is to compare the main dimensions and operating conditions before deciding. Our team can help you find the compatible alternative.

If you already have the part number of the bearing you need, write to us on WhatsApp and we will quote it promptly. At MR Accesorios Industriales we work with the TIMKEN line and can advise you on the application, mounting and lubrication. With more than 80 years in the market, we support Argentine industry with products and technical support. Send us the part number NA495A, NA691A or the one shown on your equipment, and we will reply with the information you need.

This description provides guidance on the product type. Check the configuration and dimensions of this reference.