NSK MR 52 B deep groove ball bearing

NSK MR 52 B belongs to deep groove ball 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 MR 52 B and any equivalents.

The NSK MR series is a line of deep groove ball bearings built for radial and axial loads in either direction. A single row of balls runs between steel rings, which suits equipment that needs quiet running and higher speeds. Electric motors, pumps, fans and general industrial machinery are common homes for these bearings. MR Industrial Accessories supplies the series in metric dimensions and can walk you through picking the right reference.

Reading the code helps narrow down what you are looking at. The letters MR mark the thin section deep groove ball bearing family, while the B that follows points to the cage type or internal design. References such as MR 52 B and MR 104 B follow the same pattern: a two or three digit number plus the letter B. That number is a size code tied to the standardized dimensions of the series, not the bore in millimeters, so the exact figures for any given reference come from the manufacturer's tables or the data sheet.

These bearings turn up in low and medium power electric motors, centrifugal pumps, fans, compressors, machine tools and conveyors. Their low noise and ability to run at high speed make them a fit where smooth operation and precision matter. You will also find them in commercial and household equipment such as washing machines and air conditioners, where dependable service is the priority.

Selection comes down to a few practical points: the radial and axial load the bearing will see, the rotation speed, the surrounding environment and the lubrication method. Most of these bearings are supplied with seals or shields to keep dust and moisture out, so match the sealing style to the working conditions. At mounting, check alignment between shaft and housing and apply the lubricant specified by the manufacturer. Careful installation helps the bearing last longer and keeps vibration down.

On interchangeability, MR series deep groove ball bearings can be swapped with products from other makers that share the same standardized dimensions. Tolerances and internal design are not always identical across manufacturers, so confirm dimensional and load capacity compatibility before substituting. If you are holding a part number from another brand, send it over and we can help identify the matching MR series reference or another option.

To get a quote on the NSK MR series bearing you need, send the complete part number by WhatsApp or email to MR Industrial Accessories. If the designation is unclear or you want help choosing the correct variant, our team will guide you. We can also advise on equivalent bearings from other brands. Reach out and we will reply promptly.