NN3092 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 NN3092 model number is decoded

In NTN Ball and Roller Bearings CAT.No.2203E, NN3092 appears as a 460 mm bore single-row cylindrical roller bearing (2830 kN C / 5350 kN C0) with a machined or stamped steel cage per the precision execution, listed to the ISO 15 boundary plan. On the NTN nameplate NN states which ring carries the ribs, which determines whether NN3092 floats or locates; the numeric remainder is the ISO 15 series and 460 mm bore reference, not a fit or clearance instruction. Line contact between rollers and raceways gives NN3092 high radial capacity but no tolerance for misalignment: beyond roughly 3–4 arc-minutes the roller ends edge-load and fatigue accelerates. The 460 mm (18.11 in) bore and 680 mm (26.772 in) OD are ISO 15 boundary values; fillet and shoulder dimensions must still come from the NTN mounting table for the 163 mm-wide ring. After mounting verify the outer ring slides axially by hand at ambient temperature; a stuck float ring in a NN3092 non-locating position preloads the bearing when the shaft grows.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• At 460 mm bore, oil-lubricated arrangements toward 890 r/min need positive flow and drain design; the 202000 g NN3092 ring stores enough heat that grease-only duty needs a careful relubrication calculation.
• Grease limiting speed 750 r/min and oil 890 r/min are different limits for NN3092: the first is the cage/lubricant mechanical ceiling, the second assumes real oil flow rather than an oil bath.
• The EA high-capacity roller complement changes the load figure versus the basic execution of the same number; the 2830/5350 kN pair here belongs to NN3092 as printed, not to the bare size.
• Wide (22/23) and light (10/49) executions at 460 mm bore share bore but not OD/width; check the full NN3000 series code before substituting, because housing and shoulder geometry will not interchange.
• Wide (22/23) and light (10/49) executions at 460 mm bore share bore but not OD/width; check the full NN3000 series code before substituting, because housing and shoulder geometry will not interchange.
• The 2830/5350 kN ratings, 385 kN Pu and 202000 g mass are NTN Ball and Roller Bearings CAT.No.2203E values for NN3092 (standard execution); other makes sharing the ISO 15 envelope revise internal geometry without changing the order number, so keep the 2203E reference with the specification for critical drives.