SKF 312 NR deep groove ball bearing

SKF 312 NR 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 312 NR and any equivalents.

When you need to lock a bearing axially without adding covers or lock nuts, the SKF NR series deep groove ball bearing is a practical choice. It is a single-row bearing with a snap ring, also called a circlip, fitted into a groove on the outer ring. That ring holds the bearing in place inside the housing and keeps the support design simple. Typical equipment includes electric motors, gearboxes, pumps and fans. MR Industrial Accessories LLC supplies this line to customers in the United States and several Latin American countries.

Reading the part number is straightforward. The NR suffix tells you that the outer ring carries the ring and its groove. For instance, 6005 NR is a 60-series bearing of medium section with that feature. Other suffixes you may see in the same family cover seals (2RS), shields (2Z) or internal clearance (C3), but this particular reference is only the NR variant. Knowing how the code is built helps you order the exact replacement.

These bearings appear in food, metalworking, chemical and plastics plants, on electric motors, gearboxes, centrifugal pumps, fans and conveyors. They also turn up in machine tools, compressors and transmission systems that need a fixed support with simple axial adjustment. Because they handle moderate radial and axial loads, they fit many general-duty positions.

Selection comes down to the radial and axial loads, the speed and the environment. The housing must have a machined groove that matches the ring; check the groove diameter and depth against the bearing standard. Grease or oil lubrication both work depending on the application, and keeping shaft and housing aligned avoids extra loads. In dusty or damp areas, consider a sealed version.

Interchange is possible with deep groove ball bearings from other makers that have a snap ring, as long as the main dimensions and ring type line up. Confirm the full part number and tolerances. For a replacement, comparing the original bearing dimensions and the operating conditions is the safest route. Nomenclature for the ring varies between brands, so it pays to verify equivalence with a specialist.

To request a quote for an SKF NR series bearing, send the part number to MR Industrial Accessories LLC by WhatsApp or email. The team replies promptly and can suggest equivalents or help you choose the right bearing for the job.