32084UTG bearing: complete specifications & equivalents

Specification table

Source: catalog reference (NTN Ball and Roller Bearings CAT.No.2203E) · extracted 2026-10-01

Parameters extracted from the official NTN Ball and Roller Bearings catalogue (NTN Ball and Roller Bearings CAT.No.2203E); 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 32084UTG model number is decoded

32084UTG belongs to the NTN metric 4T tapered roller range (low-section 32000 family tuned for low friction); the open bearing leaves sealing to the application and is normally ordered and mounted as an adjustable matched pair. The last two digits 84 are the ISO bore code, ×5 = 420 mm (codes 00–03 use the 10/12/15/17 exception table) under the ISO 355 numbering; the 125 mm value printed here is T, the width of the fully assembled cone-plus-cup set, not the inner-ring width alone. A tapered roller bearing reacts combined radial and one-direction axial load; NTN mounts 32084UTG cone and cup separately and adjusts end play or preload against a second bearing, so the arrangement locates the shaft in both directions. Selection: C 2920 kN against C0 4550 kN gives a C0/C ratio of 1.56 for the 420 mm bore, and the equivalent combined load must keep below the rating at the target L10 with the pair counted as one unit. After mounting check the contact pattern with marking blue: a pattern biased to the large or small roller end means the 420 mm pair is misadjusted and the 125 mm T set will edge-load in service.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• At 420 mm bore the 32084UTG set is adjusted with hydraulic nuts on large mill and wind positions; follow the drive-up angle/end-play procedure, because manual torque methods cannot control preload at the 2920 kN C level.
• The thin 125 mm section of 32084UTG is built for low friction and tight envelopes, not the heavy preload of a 322/323 set; over-tightening adjustment on this 420 mm bore smears the roller ends against the rib.
• Grease packs must leave free volume in the 125 mm-wide set; over-greasing a paired bearing churning at the 660 r/min oil-band speed raises temperature and destroys the preload setting.
• Do not confuse T (125 mm assembled width of cone + cup) with the cone width when drawing spacers; an abutment sized to T instead of the ring width leaves the cup unseated.
• Do not confuse T (125 mm assembled width of cone + cup) with the cone width when drawing spacers; an abutment sized to T instead of the ring width leaves the cup unseated.
• The 2920/4550 kN ratings and 340 kN Pu here are NTN Ball and Roller Bearings CAT.No.2203E figures for 32084UTG; internal geometry legitimately differs between manufacturers, so re-verify ratings, adjustment and suffix before substituting another make on a rated drive.