MCGILL MI 20 N needle roller bearing

McGILL MI 20 N belongs to needle roller bearing, part of our Bearings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for MI 20 N and any equivalents.

MCGILL's MI N series covers needle roller bearings built with a reduced radial cross-section, using cylindrical needles as the rolling elements. They suit positions where radial room is tight but the shaft still has to carry radial load with a controlled outside diameter. MR Industrial Accessories supplies this MCGILL line and assists with matching the right part number to the application.

Reading the designation helps when you order. MI marks the needle roller bearing family, the following number ties the bearing to a particular shaft size, and the N suffix identifies a construction variant inside the series. That is why the full number matters: MI 6 N, MI 7 N, MI 8 N, MI 9 N, MI 10 N, MI 11 N, MI 12 N and MI 13 N are among the sizes handled. The number is an internal series reference, not a millimeter bore, so quote the part number exactly as shown on the drawing or on the removed bearing.

These bearings are picked for machine tools, transmission equipment, pumps, compressors, conveyors, agricultural machinery and material handling equipment, as well as automation assemblies, when the housing has to stay small without giving up radial load capacity. Their thin section allows more compact supports than a ball bearing with the same bore. MR Industrial Accessories supplies them both for replacement work and for new builds.

Selection starts with shaft diameter, housing diameter and usable width, then moves to radial load and lubrication conditions. Installation calls for clean parts, alignment between shaft and housing, and a raceway or rolling surface in good condition, since the needles run directly on it. In dusty, chip-filled or damp areas, add sealing or choose a protected variant. Use a lubricant suited to the operating speed and temperature, and check radial clearance after mounting.

Needle roller bearings are identified by designation and standardized dimensions rather than a single universal number, and each brand applies its own nomenclature to the same size. Confirm interchangeability by matching bore diameter, outer diameter, width and construction type, not by the number alone. If you are holding a reference from another brand, send the part data and we will help you locate the MCGILL equivalent in the MI N series.

For a quote, message us on WhatsApp with the complete designation, for example MI 8 N or MI 12 N. If the suffix or size is unclear, send a photo of the part, the drawing, or the shaft and housing measurements, and we will come back with the reference that fits your equipment.