NSK R 168 BZZ deep groove ball bearing

NSK R 168 BZZ 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 R 168 BZZ and any equivalents.

For shafts sized in inches, the NSK Inch Series deep groove ball bearing offers a single-row solution that fits imported machinery without modification. It handles moderate radial and axial loads in both directions and is suited to high-speed operation. The R 168 BZZ is one reference within this series, and its code tells you what you are getting once you know how to read it.

The part number breaks down into clear blocks. The leading R marks the Inch series, where all dimensions follow inch practice. The digits that follow, 168, identify the size within that series. Then come the suffixes: B denotes a design variant that may involve an angular contact layout or a brass cage, depending on the specific bearing, and ZZ means two sheet metal shields are fitted. So R 168 BZZ is an inch bearing with double shielding. Send that full number on WhatsApp and the team will quote it.

These bearings turn up in equipment from the US or the UK, where shafts are cut in inches. Typical locations include machine tool spindles, centrifugal pumps, gearboxes, industrial fans and conveyors. Plants in food processing, textiles, metalworking and water treatment rely on them when maintaining inch-based machinery, as do workshops repairing older or imported equipment. Keeping the inch series avoids adapters and preserves the original fit.

Selection comes down to the bore, outer diameter and width in inches, plus the seal or shield type. The ZZ variant copes with coarse dust and chips, but it is not a liquid-tight barrier. If water or oil is present, a contacting seal is the better choice. Internal clearance and lubrication are set at the factory, so leave them as supplied unless there is a clear reason to change. During mounting, align the housings carefully and press or pull the bearing into place; never strike the raceway. Misalignment shortens service life.

Cross-referencing between brands relies on the part number and the actual dimensions. An NSK inch bearing can be matched to equivalent lines from other makers that use the same inch nomenclature, but confirm the full part number and measure the bearing before replacing. A matching number alone is not enough: shield, clearance and cage suffixes change how the bearing behaves. If you have the original part or a number from another brand, send it on WhatsApp and the team will identify a compatible alternative.

MR Industrial Accessories supplies NSK bearings to customers across the United States and in several Latin American countries. For the R 168 BZZ or any other reference in the Inch series, message the part number or the inch measurements on WhatsApp or by email. The team replies promptly and can suggest equivalents or help you choose.