UCFC, NAFC & UKFC-H Round Flanged Cartridge Units

The engineering case for this family starts with a round flanged cartridge is used to locate the bearing concentrically in a machine plate while offering a selectable shaft-locking method. In the supplied catalog, UCFC / NAFC / UKFC-H is shown as round flanged cartridge units with set screw, eccentric collar and tapered-bore options and round four-bolt flanged cartridge. For UCFC / NAFC / UKFC-H, quotation work moves faster when the source designation, shaft or bore dimension and the controlling mounting measurements are checked before optional seal, grease or housing requests are discussed.

Product Role

The support point must carry the shaft while keeping mounting, locking and later disassembly predictable. A UCFC / NAFC / UKFC-H match is therefore strongest when the full code and the round four-bolt flanged cartridge are confirmed together with the shaft measurement.

Construction & Fit

The assembly geometry should be kept intact when comparing alternatives, especially around shaft lock and mounting clearances. For UCFC / NAFC / UKFC-H, that chain includes set screw, eccentric collar and tapered-bore options at the shaft and round four-bolt flanged cartridge at the machine. Do not use any compliance around UCFC / NAFC / UKFC-H to hide poor base flatness, frame twist or a shaft that is already out of line.

Applications

The mounting interface works well on machine side plates, process equipment, conveyors and assemblies that benefit from a pilot-style round housing envelope. The operating environment around UCFC / NAFC / UKFC-H should be described in plain terms, including dust, moisture, cleaning practice and temperature.

Engineering Review

UCFC, NAFC and UKFC-H round flanged cartridge units locate through a circular flange or pilot area, so the pilot relationship can be more important than the outside diameter alone. Measure the machine recess or locating feature as well as the bolt pattern. If the pilot is wrong, tightening the flange can create an off-center or stressed installation even when every bolt enters its hole.

The catalog group also carries different shaft-locking approaches. A round housing that looks interchangeable from the front may need different axial space on the shaft side. For repair work, record the pilot diameter, flange thickness, shaft projection and locking hardware before removal. These measurements make it possible to separate a true cartridge replacement from a housing that merely shares a circular outline.

Round cartridge units should be checked for uniform pilot contact around the machine recess. Shiny patches on one side and fretting on the opposite side may point to an off-center seat. Measure the recess before installing a new unit if damage is visible. A correct bearing cannot compensate for an oval or mislocated pilot, so housing-seat condition belongs in the repair decision as much as the cartridge designation.

Use a bore gauge or at least several diameter readings around the cartridge seat if fretting is visible. A single caliper measurement may miss ovality. Recording the seat condition protects the replacement decision: if the machine recess is damaged, the repair plan can address that interface instead of expecting a new UCFC, NAFC or UKFC-H unit to restore geometry by itself.

Technical Specifications

Dimensional Data

The table below gives catalog-backed core dimensions for UCFC / NAFC / UKFC-H where the scan is legible. For UCFC / NAFC / UKFC-H, the specification image in the gallery remains the reference for the complete drawing and every dimension on the selected size row.

Selection Notes

Build the match around the machine interfaces that would require rework if they were wrong. Measure the UCFC / NAFC / UKFC-H shaft interface and the fixed geometry around its round four-bolt flanged cartridge; then confirm the set screw, eccentric collar and tapered-bore options matches the service method. For UCFC / NAFC / UKFC-H, a readable old designation helps, but dimensions and duty data remain the stronger safeguard against an incorrect interchange.

Mounting & Integration

Measure the pilot or locating diameter, clean the recess, draw the flange down evenly, then complete the set-screw, eccentric-collar or adapter operation for the chosen series. The main installation hazard for UCFC / NAFC / UKFC-H is that pilot diameter and flange bolt circle are as important as shaft bore; selecting only by bearing insert can leave the housing unable to seat in the machine recess. Once UCFC / NAFC / UKFC-H is tightened, verify shaft freedom and make sure no fixed part has moved into the rotating envelope.

Maintenance & Inspection

Check for fretting around the pilot and for bolt loosening; a properly located cartridge should not depend on bolt friction alone to maintain concentricity. For UCFC / NAFC / UKFC-H, compare temperature, sound, leakage and fastener condition over time; a trend is usually more informative than one isolated reading.

Customization & RFQ

To quote UCFC / NAFC / UKFC-H accurately, provide the source designation where available and a measured sketch of the shaft and mounting interface. Do not hide UCFC / NAFC / UKFC-H environmental details behind the industry name. Describe dust, water exposure, cleaning agents and temperature at this UCFC / NAFC / UKFC-H bearing position. Ever Power Netherlands Branch can then review options for UCFC / NAFC / UKFC-H against the supplied application instead of presenting unverified material, seal or grease claims as standard catalog facts.

Cataloged Models

This page represents UCFC set screw type; NAFC eccentric locking collar type; UKFC-H tapered bore / adapter type. When ordering UCFC / NAFC / UKFC-H, use the full catalog designation from the selected size row so the bore and mounting details remain traceable.

Product FAQ

Evidence Note

The supplied catalog is the technical source of record for UCFC / NAFC / UKFC-H; its image crop is kept with the product so the dimensional evidence remains traceable. The gallery drawing for UCFC / NAFC / UKFC-H is a direct catalog crop, not an AI-generated technical illustration. Any application visualization added later for UCFC / NAFC / UKFC-H should be treated as illustrative rather than as dimensional evidence.

Source boundary for UCFC / NAFC / UKFC-H: geometry and transcribed dimensions are based on the supplied catalog, PDF pages 36-37. For UCFC / NAFC / UKFC-H, Drive research was restricted to private buyer context, while public web research supported terminology and WP All Import workflow.