Flange bearing 4 holes NTN SESF203

NTN SESF203 is a flange bearing 4 holes reference, within Bearing housings. Request a quote for SESF203 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The NTN SESF series Y-bearing insert unit is a 4-bolt flanged mounted unit designed to secure rotating shafts to a flat surface and support radial loads with simple alignment. It is used in equipment where the shaft needs firm support and mounting must be resolved quickly, without machining housings. MR Accesorios Industriales sells this NTN line in Buenos Aires, Argentina, and quotes it on WhatsApp with the exact part number you need.

The SESF series designation reads in blocks: the letters identify the unit type (flanged housing with insert bearing) and the number that follows indicates the shaft size and the dimensions of the assembly. That is why references such as SESF201, SESF202 or SESF205 coexist, covering increasing diameters. When a hyphenated suffix appears, such as SESF204-12 or SESF205-16, that additional number distinguishes a shaft variant within the same family. Send us the full part number and we will quote the corresponding unit.

These units are found in conveyors, belts, elevators, mixers, blowers and packaging lines, where the drive shaft needs a flanged support with four mounting points. In Argentine plants in food, cement, aggregates, chemical and water treatment industries they are common because they simplify mounting on sheet metal or structure. They also appear in material handling equipment and agricultural machinery, as long as the load is radial and the speed is moderate.

To choose well, look at the shaft diameter, the insert locking type (set screw or eccentric) and the sealing: in dusty or wet environments an insert with a contact seal is preferable. When mounting, rest the flange on a flat, clean surface, tighten the four bolts in a cross pattern and check that the shaft turns freely. Lubrication of the insert and alignment of the shaft with the flange are key to the unit's service life. If the equipment vibrates, first check the tightness and the condition of the seal.

Flanged units with insert bearings are interchanged between brands by shaft number and hole configuration, not by the full part number. An NTN SESF205 can be replaced by an equivalent unit from another brand if shaft diameter, hole spacing and insert type match. If you have the original part on hand or the part number from another brand, send us that data and we will indicate the compatible alternative. You don't need to guess the reference: the size is enough.

If you already know the part number or shaft size you need, write to us on WhatsApp and we will quote the NTN SESF series unit shortly. MR Accesorios Industriales works with this line in Buenos Aires, Argentina, and also advises you on sealing and mounting according to your equipment's environment. Send the part number, the size or a photo of the part and we'll take it from there.

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