413126 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 413126 model number is decoded

4T-413126 belongs to the light-duty 430-family TDO double-row series of NTN double-row tapered roller bearings; the unit is mounted as one article and its internal clearance is set at the factory, not on the shaft. Reading the designation: the last two digits 26 are the bore code, ×5 = 130 mm (codes 00–03 use the 10/12/15/17 exception table); the leading digits place the bearing in the light-duty 430-family TDO double-row series. Double-row capacity is not twice a single-row bearing: the printed 350 kN C already accounts for load sharing between the two rows of 4T-413126, so apply it directly in the L10 calculation. Because the unit is preset, mounting 4T-413126 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. At 350 kN C the unit offers about 2.7 kN per millimetre of the 130 mm bore — heavy-section TDO rows of this class run warm, so confirm oil availability before working near 1,800 r/min.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• At 130 mm bore the 4T-413126 unit needs hydraulic or crane-assisted fitting and a verified oil supply; manual methods cannot control seating at the 350 kN C level.
• The 430 light plan keeps 4T-413126 narrower and faster than the 432 heavy execution of the same 130 mm bore; where shock or a high thrust share dominates, verify whether the heavier 432-family row is the intended position.
• The 40.0 mm section leaves little room for oversized shaft fillets; follow the 2203E chamfer table for 4T-413126 or the cones bottom out on the radius.
• At inspection do not mix the cone assemblies of 4T-413126 with another unit; rows are ground together and re-matching is not guaranteed in the field.
• The 40.0 mm section leaves little room for oversized shaft fillets; follow the 2203E chamfer table for 4T-413126 or the cones bottom out on the radius.
• The 350/485 kN ratings and 50.5 kN Cu here are NTN Ball and Roller Bearings CAT.No.2203E figures for 4T-413126; internal geometry legitimately differs between manufacturers, so re-verify ratings, clearance class and suffix before substituting another make on a rated drive.