NTN 4T-593/592A tapered roller bearing

NTN 4T-593/592A 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-593/592A and any equivalents.

The NTN 4T series covers tapered roller bearings that come apart into two pieces: a cone, which is the inner ring with its rollers and cage, and a cup, the outer ring. This design handles radial and axial forces at the same time and is built for heavy-duty work. You will find these bearings in gearboxes, reducers, wheel axles and other industrial machinery where loads are high and the assembly needs to stay rigid.

Reading the part number is straightforward once you know the pattern. Take 4T-355/354A: the 4T prefix marks the NTN series, 355 is the cone, and 354A is the cup. The A at the end is a design variation inside the same series. The same logic applies to 4T-358/354A or 4T-365/362A. Cone and cup are always matched as a pair to build the complete bearing.

In US plants and workshops, these bearings show up in gearboxes, transmissions on road equipment, mining machinery, mills, pumps and industrial fans. They also serve in commercial vehicle wheel axles and agricultural equipment, where combined loads and shock are part of daily operation. Because the cone and cup separate, mounting and setting preload or clearance is easier during assembly.

When selecting a bearing, check radial and axial load, running speed and lubrication method. The cone and cup must be aligned precisely; misalignment speeds up wear. Keep contaminants out with seals or shields, especially in dusty or damp locations. Grease or oil can be used depending on the application, and clearance is set with shims or nuts. If you are unsure, send the part number and we will guide you.

Tapered roller bearings are identified by cone and cup dimensions rather than a single number. For cross-referencing between brands, compare bore diameter, outer diameter and width, plus the contact angle. SKF, FAG, Timken and NSK each have their own designations, but interchangeability depends on dimensions and load capacity. If you have a part number from another brand, send it and we will identify the equivalent NTN reference.

To request a quote for an NTN 4T series bearing, message us on WhatsApp with the part number or the measurements you need. We reply promptly and help you find the correct part for your equipment.