SKF 1218 K/C4 self-aligning ball bearing

SKF 1218 K/C4 is a reference of self-aligning ball bearing, within Bearings. Request a quote for 1218 K/C4 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

SKF self-aligning ball bearings of the 12 K series are double-row ball bearings designed to support radial and axial loads in both directions. Their main feature is that they allow angular misalignment between shaft and housing, making them ideal for applications where perfect alignment cannot be guaranteed. They are used in agricultural machinery, conveyors, fans and industrial equipment in general.

The designation of these bearings follows a clear pattern. For example, 1215 K/C3 indicates a bearing of the 12 series, with a bore diameter of 75 mm (code 15), tapered bore (suffix K) and C3 internal clearance. The suffix K means that the bore is tapered, generally with a 1:12 taper, which allows mounting on tapered shafts or adapter sleeves. The suffix /C3 indicates a radial internal clearance greater than normal, suitable for applications with elevated temperatures or interference fits. Other suffixes such as /C4 indicate an even greater clearance.

These bearings are used in a wide variety of industries in Argentina. They are common in the food industry, where cleanliness and corrosion resistance are important; in the agricultural industry, in seeders and combine harvesters; in material transport systems, such as conveyor belts; and in ventilation and extraction equipment. Their self-aligning capability makes them useful in applications where shafts flex or where structures are not rigid.

To correctly select an SKF self-aligning ball bearing of the 12 K series, take into account the radial and axial load it must support, the rotation speed, and the environmental conditions. Sealing is crucial: if there is dust or moisture, choose variants with seals or additional protections. Internal clearance should be selected according to the fit and working temperature; a C3 clearance is suitable for most applications with tight fits. During assembly, ensure correct initial alignment and use the appropriate tools to avoid damaging the bearing. Lubrication must be the one recommended by the manufacturer, and it is important to verify clearance after assembly.

Regarding equivalents, SKF self-aligning ball bearings of the 12 K series can be interchanged with products from other brands that follow the same dimensional designation, such as FAG, NSK or NTN. However, it is essential to verify tolerances and internal clearance, as they may vary between manufacturers. Always consult equivalence tables and make sure the technical characteristics match the needs of your application. Not all brands use the same suffixes to indicate tapered bore or internal clearance.

If you need advice to choose the right bearing, at MR Accesorios Industriales we can help you. Send the complete part number by WhatsApp and we will quote you promptly. We work with the leading brands and help you find the best solution for your equipment.