NTN 6811JR deep groove ball bearing

NTN 6811JR 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 6811JR and any equivalents.

The NTN JR series deep groove ball bearing is a single-row, steel-cage component that handles radial and axial loads in both directions. It runs at high speeds with low noise, making it a common choice for precision machinery and industrial equipment.

The part number tells you the size and series. For example, 6808JR, 6809JR, 6810JR and 6811JR are all 68-series bearings: a thin section with a reduced outer diameter. The JR suffix means a pressed steel cage, a robust design for general applications. This naming system helps you match dimensions quickly when selecting a bearing.

These bearings appear in electric motors, centrifugal pumps, fans, compressors, machine tools and transmission equipment. Automotive uses include alternators and tensioners. Their high-speed capability and quiet running suit equipment where precision and reliability matter.

Selection depends on the radial and axial load, the rotation speed and the environment. Check that the shaft and housing tolerances are correct and that lubrication fits the application: grease for standard duty, oil for high speeds. During mounting, align carefully and avoid impacts that could damage the raceways. For sealing, consider the contamination level; in dirty conditions, use bearings with added seals or shields.

NTN JR series bearings interchange with equivalent bearings from other brands that follow the same international dimension nomenclature. When replacing, compare the inner diameter, outer diameter, width and load capacities. If unsure, the complete code of the original bearing is the best reference for an exact match.

To request a quote for NTN JR series bearings, send the complete code on WhatsApp or by email. We can also advise on lubrication, mounting and maintenance to help you get the most from your bearings.