NSK UKF311D1;H2311X flange bearing 4 holes

NSK UKF311D1;H2311X belongs to flange bearing 4 holes, part of our Bearing housings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for UKF311D1;H2311X and any equivalents.

The NSK UKF is a mounted bearing unit that pairs a cast iron flange housing with a spherical roller insert bearing and an adapter sleeve. Four bolts hold it to the structure, with the shaft running perpendicular to the mounting face. This makes it a practical choice for belt, chain or coupling drives that need front mounting and a degree of self-alignment.

Reading the code helps you order the right assembly. UK tells you the insert has a tapered bore and is secured with an adapter sleeve; F identifies the 4-bolt flange. The digits that follow (205, 206, 207 and so on) set the bearing and housing size. In codes such as UKF205D1;H2305X, UKF206D1;H2306X or UKF210D1;H2310X, D1 marks sealing or internal design variants, and H2305X, H2306X, H2310X name the sleeve supplied with the unit. The series spans a range of standard shaft diameters.

Typical installations include belt conveyors, bucket elevators, mixers, screens and packaging lines, as well as irrigation equipment, mills and animal feed plants where dust or humidity is present. Maintenance shops also keep them on hand for replacing worn units. Because the flange mounts flat, the housing can be bolted to sheet metal or profile structure.

When selecting, begin with the shaft diameter and the H sleeve it requires. Check alignment between adjacent housings: the insert has a spherical seat, but too much misalignment will shorten seal life. General-purpose lithium grease is the usual lubricant; for humid conditions, consider the D1 seal or extra retainers. Tighten the sleeve with its lock nut and lock washer, setting internal clearance to suit the diameter. At installation, draw up the flange bolts in a cross pattern and confirm the shaft turns freely.

UKF units interchange with other brands that follow the same 4-bolt flange housing standard. If you have a code from another make, it can be matched by shaft diameter and sleeve type. H sleeves are standardized too, so an H2308 fits a UKF208 housing regardless of brand. To verify an equivalent, send the full code or the shaft dimensions plus the hole spacing.

For an NSK UKF housing with insert bearing, contact us on WhatsApp with the code or shaft diameter. We quote the complete unit or the sleeve on its own, and suggest a compatible alternative when needed. MR Industrial Accessories LLC serves customers throughout the United States and in several Latin American countries.