H414249-H414210 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 H414249-H414210 model number is decoded

For an inch shaft of 71.438 mm carrying combined radial and thrust load, NTN lists 4T-H414249/H414210, a single-row 4T tapered roller set of 251 kN C and 293 kN C0 inside the 136.525 mm OD cup. Reading the designation: 4T-H414249/H414210 follows the ABMA inch convention — the number before the slash is the cone (inner ring with roller set and cage), the number after the slash is the cup (outer ring), and the heavy H family lettering ties the pair to its boundary plan. The 3.5 kN of dynamic capacity per millimetre of bore summarises the 251 kN rating over the 71.438 mm bore — sanity-check any interchange candidate against this ratio and the 41.275 mm T. The printed 251/293 kN ratings belong to the assembled H414249+H414210 pair; a sibling row using the same cone with a different cup carries its own rating row because the raceway track shifts with the cup. Running clearance of 4T-H414249/H414210 is set at mounting by axial displacement of cone or cup — the catalogue does not ship a preloaded set, so the drawing must state end play or preload.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• Mount the 71.438 mm cone by induction heating (max 120 °C) and the 136.525 mm cup with a press sleeve; at 2580 g a cocked ring brinells the raceway directly.
• The heavy H family at 71.438 mm bore (136.525×41.275 mm assembled) is one of several inch families sharing similar bores; cross-series swaps change OD, T and contact angle, so match the full H414249/H414210 reference at purchase.
• Fit selection follows the rotating ring: a rotating cone on a 71.438 mm shaft takes a k5/m5 seat, and a rotating cup reverses the logic — decide from the load diagram, not from habit.
• Shaft and housing fillets must clear the ring chamfers of H414249 and H414210; use undercut shoulders so the rings seat on the face, not on a radius.
• Inch and metric bores collide on paper — 71.438 mm is 2.813 in, not a round metric size; a metric bearing that seems 0.1 mm off will not seat on the inch shaft.
• The 251/293 kN ratings here are NTN Ball and Roller Bearings CAT.No.2203E figures for 4T-H414249/H414210; internal geometry legitimately differs between inch-series makers, so re-verify ratings, adjustment and the exact cone/cup references before substituting another brand on a rated drive.