UCFL213 bearing: complete specifications & equivalents

Specification table

Source: catalog reference (CAT. No. 2203-3/E 2024) · extracted 2026-09-25

Parameters extracted from the official NTN Ball and Roller Bearings catalogue (CAT. No. 2203-3/E 2024); NTN® is a trademark of NTN Corporation, used here for identification only — mpnbase is not an authorized NTN distributor. Boundary dimensions are ISO 15 interchangeable; current production values may differ, verify at ntnglobal.com.

Cross references & equivalents

Interchange levels: full standard interchange · partial verify parameters · verify manual confirmation required. Links resolve to the equivalent model's specification page where available.

How the UCFL213 model number is decoded

NTN delivers UCFL213 as a matched unit — the UC213D1 insert is locked into the FL213 rhombus cast-iron flange at the factory and arrives greased and sealed. NTN's numbering ties the unit to its components: UCFL213 means the FL213 housing carrying the UC213D1 insert, with the last two digits denoting the 65 mm bore in the 2-series duty class. The mounting detail needs four numbers: H 258 mm flange height, L 155 mm across the ears, J 210 mm between the 23 mm holes, and a 65 mm shaft through the 120 mm OD UC213D1 insert. The 2-series section is the standard-duty choice — the slimmest, lightest housing at this bore, selected when shaft speed and load are moderate and space is normal. The diamond flange carries the shaft square to a vertical face — a welded frame, side plate or gearbox wall — so no base plinth and no shim pack under the bearing are required. In this bore band the X and 3 sections start to outsell the standard section: longer bearing centres and tensioned belt drives use the extra rating and stiffer base that the heavier housings provide. Cement plant clinker conveyors fit this size under insulation and heat shields; radiant heat dictates both the grease grade and a relubrication interval far shorter than the load alone would suggest. If the unit is the locating bearing, clamp the inner ring with both setscrews and keep the housing feet tight; the opposite unit on the shaft must be the float design with slots, or thermal growth preloads both bearings. Basic ratings of the UC213D1 insert are 63.5 kN dynamic and 40 kN static; the assembled UCFL213 weighs about 4.8 kg.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• As a rhombus flange, UCFL213 pulls against the frame through only two M20 bolts on 210 mm centres; the mounting plate must be stiff enough not to bend between them under belt load.
• At replacement time, measure the 65 mm shaft journal — a worn or deeply indented journal under the setscrews will let a brand-new UCFL213 creep identically to the old one.
• UCFL213 is located on the shaft by setscrews only; for shock reversing drives consider an adapter-lock insert family instead, since setscrew points indent the 65 mm journal over time.
• Heavy drives on UCFL213 should have the setscrews re-torqued after the first day; at 65 mm bore the seating forces are large and a loose inner ring frets the shaft in weeks.
• The standard 2-series insert in UCFL213 is the lightest section at 65 mm — do not substitute it into a position that previously ran an X or 3 unit: the 210 mm mounting may match while the load rating does not.