NSK 6844 ZZS deep groove ball bearing

NSK 6844 ZZS 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 6844 ZZS and any equivalents.

Deep groove ball bearings handle moderate radial and axial loads in both directions and run at high speeds, which makes them one of the most common bearing types in industrial equipment. The NSK ZZS version adds two metal shields and a snap ring groove on the outer ring, so the bearing can be located axially in the housing without side covers. Typical applications include electric motors, pumps, fans and gearboxes.

Reading the part number is the fastest way to confirm what you are ordering. The first digit, 6, marks the deep groove series; the second digit gives the dimension series; the remaining digits are the size code. The 60 group covers 6034 ZZS, 6036 ZZS, 6038 ZZS, 6040 ZZS and 6044 ZZS, while the 62 group covers 6228 ZZS, 6230 ZZS and 6232 ZZS with a medium section. The ZZS suffix itself means double metal shield (ZZ) plus snap ring groove (S).

The S groove lets you secure the outer ring in the housing with a snap ring. That simplifies axial location, cuts machining work and removes the need for side covers in many arrangements. You will find these bearings in electric motors, centrifugal pumps, industrial fans, gearboxes and machine tools, including food processing, petrochemical, cement and metalworking operations.

Selection comes down to radial and axial load, rotation speed and the working environment. ZZ shields hold grease in and keep dust and particles out, but they are not liquid-tight; where water or steam is present, look at contact seals instead. Check that internal clearance and lubrication suit the operating temperature, and make sure shaft and housing are properly aligned to avoid parasitic loads.

Deep groove ball bearings from different manufacturers can be interchanged when the main dimensions and the protection type match. If you are replacing an NSK ZZS with another brand, confirm that the size code and suffixes line up; when in doubt, the original code is the safest reference. We supply NSK and other brands and can point you to a compatible alternative.

To get a quote, send the full part number by WhatsApp or email, for example 6034 ZZS. Tell us the quantities you need and the team will reply promptly. Alongside bearings, MR Industrial Accessories LLC manufactures split plummer block housings, ANSI chains and sheaves, and supplies power transmission components, seals and lubricants.