Self-aligning ball bearing NTN 1305S

NTN 1305S is a self-aligning ball bearing reference, within Bearings. Request a quote for 1305S via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The NTN S series self-aligning ball bearing is a radial bearing with two rows of balls and a spherical raceway in the outer ring, which allows it to self-align and compensate for angular misalignment between shaft and housing. It is used in applications where shaft deflection or mounting errors are unavoidable. MR Accesorios Industriales sells the complete series with sizes from 10 mm bore diameter. Request a quote for your part number on WhatsApp.

The S series designation is read with the basic number followed by the letter S. For example, 1200S indicates a self-aligning bearing of the 1200 series with the S suffix, which in practice identifies the version with a steel sheet cage. The examples 1201S, 1202S, 1203S, 1204S, 1205S, 1206S and 1207S show how the size varies within the same series: the final number increases with the bore diameter. To request a quote, send us the complete part number exactly as it appears on your equipment.

These bearings are used in equipment where the shaft may deflect or where alignment between supports is not perfect. In Argentine industry they appear in belt conveyors, vibrating screens, textile machines, fans, centrifugal pumps and power transmission equipment in general. They are also chosen for mounting on long shafts, where thermal expansion or combined loads require the bearing to accommodate small angular movements without losing load capacity.

To correctly select a self-aligning bearing, take into account the radial and axial load it will support, the rotation speed and the type of lubrication. The S series accepts grease or oil lubrication; in dusty or humid environments, additional seals or protective covers should be evaluated. Mounting must be done with suitable tools, avoiding direct blows on the balls. Initial alignment is less critical than with rigid bearings, but it is always advisable to check the internal clearance after mounting.

As for equivalents, self-aligning ball bearings are interchangeable between manufacturers while keeping the basic number and the suffix that indicates the design. An NTN 1205S can be replaced by an equivalent bearing from another brand that respects the same dimensions and tolerances. It is always advisable to verify the complete part number and the operating conditions before replacing. If you have doubts, send us the original part number and we will indicate the compatible alternative.

MR Accesorios Industriales has sold NTN bearings for more than 80 years. If you need a quote for the S series, write to us on WhatsApp with the exact part number and quantity. We will reply shortly with availability and shipping options. We can also advise you on mounting and the right lubrication for your application.

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