NTN 21310C spherical roller bearing

NTN 21310C is a reference of spherical roller bearing, within Bearings. Request a quote for 21310C via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

The NTN C series spherical roller bearing is a self-aligning bearing with two rows of rollers, designed to withstand high radial loads and axial loads in both directions, even with misaligned shafts. Its spherical outer raceway allows the inner ring to oscillate and adapt to shaft deflection or mountings that are not perfectly aligned. It is used in equipment where the load is heavy and alignment is not always ideal, such as conveyor belts, mills, pumps and continuous process machinery.

The C series designation is read by its basic number: examples 21308C, 21309C and 21310C indicate the size and dimensional series. The final C suffix identifies a construction variant within the NTN spherical roller family, generally associated with a stamped steel cage and a design optimized for loads. To choose the correct code, take into account the shaft diameter, load conditions and mounting type.

In Argentine industry, these bearings are found in mining, cement, steel, paper, aggregate processing and food plant equipment. They also appear in gearboxes, vibrating screens, ball mills and kiln support rollers. Their ability to absorb misalignment makes them suitable for long shafts or shafts subject to deflection, where a rigid bearing would not tolerate angular play.

To select a spherical roller bearing, consider the radial and axial load, the rotation speed and the environment. Sealing is key: in dusty or humid environments, a variant with seals is advisable; in clean applications lubricated with oil, an open design may be sufficient. Mounting requires initial alignment and adequate lubrication, with internal clearance that compensates for the operating temperature. The cage and heat treatment influence service life.

Spherical roller bearings are interchangeable between manufacturers if the main dimensions and the type of execution match. When replacing a part, check the complete code, the cage suffix and the sealing. If you have the code from another brand, we can indicate the compatible equivalent. We work with the exact designation shown on the equipment or drawing.

If you need an NTN C series spherical roller bearing, write to us on WhatsApp with the code or shaft size. At MR Accesorios Industriales we will quote the exact reference and advise you on the right variant for your application. We can also help you identify the part if you don't have the code at hand.