SKF 21308 EKW spherical roller bearing

SKF 21308 EKW is a reference of spherical roller bearing, within Bearings. Request a quote for 21308 EKW via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

The SKF EKW series spherical roller bearing is a self-aligning bearing with two rows of rollers, with tapered bore and lubrication groove. It is designed to withstand high radial loads and axial loads in both directions, even when the shaft has angular misalignment. Its self-aligning capability makes it ideal for applications with shaft deflection or misaligned mounting, where other bearings would fail prematurely. MR Accesorios Industriales sells this series as part of its SKF bearing line.

The designation of the EKW series is interpreted as follows: the letter E indicates that the bearing has an optimized design with higher load capacity; the K indicates that the bore is tapered (taper 1:12), which allows mounting on a tapered shaft or on an adapter sleeve; the final W corresponds to the lubrication groove and holes in the outer ring. A specific example is 21308 EKW, where 21308 identifies the size and dimensional series. Knowing these suffixes helps you choose the correct bearing according to the type of mounting and lubrication system.

This type of bearing is used in equipment where loads are high and alignment conditions are not perfect. In Argentine industry, it is commonly found in conveyor belts, mills, crushers, vibrating screens, paper machines, large centrifugal pumps and mining equipment. It is also used in gearboxes and agricultural machinery, where robustness and the ability to withstand combined forces are critical to avoid unplanned downtime.

To correctly select a spherical roller bearing, take into account the radial and axial load it must withstand, the rotation speed and the type of lubrication. The tapered bore with K suffix requires an adapter sleeve or a tapered shaft; verify the taper and proper tightening to avoid slippage. The W groove facilitates relubrication, especially in contaminated environments. Initial alignment does not need to be perfect, but it is important to control internal clearance after mounting. Always use suitable tools and follow the manufacturer's recommendations for lubrication.

Regarding equivalences, spherical roller bearings with tapered bore and lubrication groove are available from different brands under similar, though not identical, designations. For example, other manufacturers may use suffixes such as K30, K, W33 or C3 to indicate similar features. Always verify critical dimensions and tolerances before replacing one bearing with another brand. MR Accesorios Industriales can advise you on interchangeability and source the part you need.

If you have the part number of the bearing you are looking for, send it via WhatsApp to MR Accesorios Industriales and we will quote you promptly. We work with SKF and other brands so you can find the right solution for your equipment. Do not hesitate to consult us about mounting options.