Drawn cup needle roller bearing INA LR20

INA LR20 is a needle roller bearing reference, within Bearings. Request a quote for LR20 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The INA LR series needle roller bushing is a thin-walled radial bearing made up of a drawn steel outer ring and a needle roller cage. It is used to carry radial loads in tight spaces, where there is no room for a ball or roller bearing. It is common in machine tools, transmission equipment and precision mechanisms that require high load capacity in a minimal diameter.

The LR series designation is read directly: the letters identify the needle roller bushing family and the number that follows indicates the shaft diameter for which mounting is intended. For example, LR20 corresponds to a bushing for a 20 mm shaft. In this series there are no additional suffixes in the catalogue part numbers, so the complete part number is reduced to the combination of letters and number. If you need a variant with sealing or another configuration, it is best to ask about the exact part number.

In Argentine industry, INA LR series needle roller bushings appear in machine tool beds, milling machine heads, camshafts, pumps, compressors and transmission mechanisms in general. They are also found in lifting and conveying equipment, where radial space is critical and high load capacity with a reduced outer diameter is sought. They are a frequent option for replacing friction bushings and improving motion efficiency.

To correctly select a needle roller bushing, you must verify the shaft diameter, the outer diameter and the overall width, as well as the radial load it must carry. Mounting requires a shaft surface with suitable hardness and roughness, and a housing that guarantees concentricity. Lubrication can be grease or oil, and in many cases the bushing operates with permanent lubrication. Alignment between shaft and housing is key to avoiding lateral stresses that reduce service life.

INA needle roller bushings are interchangeable with those of other European brands that follow the same dimensional nomenclature, such as SKF, FAG or NTN, as long as the shaft, outer and width dimensions match. However, it is not advisable to rely on the part number alone: tolerances and the type of needles must be compared. At MR Accesorios Industriales we can guide you to find the right replacement according to the actual dimensions of your equipment.

If you already have the bushing part number, write to us via WhatsApp and we will send you a quote shortly. We can also help you identify the part if you send us the shaft and housing dimensions. At MR Accesorios Industriales we supply the INA line as an official brand, backed by more than 80 years in the Argentine industrial market.

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