413122 bearing: complete specifications & equivalents

Specification table

Source: catalog reference (NTN 2203E 2026-09-25) · extracted 2026-10-01

Parameters extracted from the official NTN Ball and Roller Bearings catalogue (NTN 2203E 2026-09-25); 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 413122 model number is decoded

NTN supplies this 110 mm shaft position as 4T-413122: a factory-adjusted double-row tapered roller bearing whose two roller rows share one double cup, overall width 56 mm. Unlike a pair of single-row bearings, the TDO unit of 4T-413122 integrates both rows in one article: the 56 mm overall width and the internal clearance are ground and set by NTN, so there is no field adjustment dimension. The 2.3 kN of dynamic capacity per millimetre of bore summarises the 253 kN rating over the 110 mm bore — compare substitution candidates on this ratio and on the 56 mm width. Because the unit is preset, mounting 4T-413122 resembles mounting a double-row spherical or cylindrical bearing: seat the unit, clamp axially to the stated end cover torque, and verify rotation — no end-play measurement is required. The preset clearance suits the standard temperature range; unusual thermal gradients between shaft and housing call for a clearance review against the 110 mm size before ordering 4T-413122.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• Mount the 110 mm unit by induction heating (max 120 °C); at 4.93 kg a cocked lift damages the cages and ribs before the bearing ever runs.
• The 430 light plan keeps 4T-413122 narrower and faster than the 432 heavy execution of the same 110 mm bore; where shock or a high thrust share dominates, verify whether the heavier 432-family row is the intended position.
• The internal clearance of 4T-413122 is factory-set: no end-play adjustment exists at mounting, and any attempt to set preload with a shaft nut overloads one row.
• Open 4T-413122 units have no seals: the housing must seal both rows or the 1,600 r/min grease figure is meaningless once contamination enters.
• Never interchange a TDO double-row unit with two single-row bearings of similar size: the 56 mm width, load spread and clearance logic of 4T-413122 are unit-specific.
• The 253/340 kN ratings and 37.5 kN Cu here are NTN Ball and Roller Bearings CAT.No.2203E figures for 4T-413122; internal geometry legitimately differs between manufacturers, so re-verify ratings, clearance class and suffix before substituting another make on a rated drive.