Product page
Needle roller bearing MCGILL MR 31
- Manufacturer Part Number
- MR 31
- Brand
- MCGILLOfficial brand
- Category
- Bearings
- Subcategory
- Needle roller bearing
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Description
MCGILL MR 31 is a needle roller bearing reference, within Bearings. Request a quote for MR 31 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
MCGILL MR series needle roller bearings are rolling components with small-diameter cylindrical elements that handle high radial loads within a very compact space. They are used when the available section is limited and rigidity and rotational precision are required. MR Accesorios Industriales carries this line as an official brand, with technical advice to select the correct size according to the shaft and housing.
The MR series designation is read as a size code: the letters MR identify the family of McGill needle roller bearings, and the number that follows indicates the nominal size of the assembly. For example, MR 10, MR 12, MR 14, MR 16, MR 18, MR 20, MR 22 and MR 24 correspond to different shaft or inner raceway diameters. Each suffix or variant that may appear in the complete code responds to specific design characteristics, such as type of sealing or raceway configuration. To correctly interpret a code with additional letters, it is best to consult with the supplier.
These bearings are used in equipment where radial space is critical: machine tools, pumps, compressors, electric motors, transmissions, packaging equipment and linear motion systems. In Argentine industry they are found in production lines, forklifts, cranes, road equipment and agricultural machinery. Their ability to withstand high radial loads with a low section makes them suitable for joints, cams, support rollers and guides where other bearings do not fit.
To select the correct bearing, consider the radial load, rotation speed, type of lubrication and environmental conditions. Assembly requires absolute cleanliness, precise alignment between shaft and housing, and an inner or outer raceway with adequate hardness and roughness. Sealing protects against contaminants; if the environment has dust or moisture, variants with seals should be chosen. Lubrication can be grease or oil, depending on the application, and must be renewed according to the maintenance plan.
Needle roller bearings from different brands can be interchanged if the main dimensions match: bore diameter, outside diameter and width. However, matching dimensions are not enough: load capacity, cage type, sealing and tolerance must be verified. McGill is a reference in needle roller bearings, and MR Accesorios Industriales carries its line as an official brand. To replace an existing bearing, the safest approach is to compare the complete technical specifications and consult a specialist.
If you need a McGill MR series needle roller bearing, write to us via WhatsApp with the code or size you are looking for. At MR Accesorios Industriales we advise you so you choose the correct variant and quote you shortly. We can also help you identify the replacement if you send us the dimensions of the original bearing.
This description provides guidance on the product type. Check the configuration and dimensions of this reference.
Dimensions
Dimensions and tolerances: Send us the part number via WhatsApp and we'll confirm dimensions, sealing, and internal clearance against the manufacturer's data sheet.
Frequently Asked Questions
- What does the MR designation mean in McGill bearings?
- The letters MR identify McGill's needle roller bearing series. The number that follows indicates the nominal size of the bearing, such as MR 10 or MR 24. For codes with additional letters, contact us via WhatsApp and we will help you interpret them.
- How do I choose the right needle roller bearing for my application?
- Take into account the radial load, speed, available space and environmental conditions. Also the type of lubrication and sealing. If you send us this data, we will advise you to select the correct variant within the MR series.
- Are McGill MR series needle roller bearings available in Argentina?
- Yes, MR Accesorios Industriales carries the McGill brand in Argentina. Write to us via WhatsApp with the code or measurements you need and we will quote you shortly.

