M802048-M802011 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 M802048-M802011 model number is decoded

In NTN Ball and Roller Bearings CAT.No.2203E, the order number 4T-M802048/M802011 denotes the medium M family of NTN inch tapered roller bearings — cone M802048 and cup M802011 delivered as a matched, separable pair of 41.275 mm bore and 82.55 mm outside diameter. Letter prefixes inherited from the inch convention mark the load family: LM reads as light-medium, HM as heavy-medium, LL as extra-light, J-prefixed codes as metric-envelope families — M802048 sits in the medium M family. Selection: C 89 kN against C0 104 kN gives a C0/C ratio of 1.17 for the 41.275 mm bore; the pair is counted as one adjusted unit when checking L10 at the equivalent combined load. Housing fitment sequence for 4T-M802048/M802011: press the M802011 cup square into the 82.55 mm seat first, then bring the M802048 cone (on its 41.275 mm shaft) into adjustment — the two references are separate engineering parts that happen to ship as one set. Running clearance of 4T-M802048/M802011 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

• Hub and pinion positions of this 41.275 mm class are adjusted in pairs; verify end play against the axle or gearbox drawing and re-torque after bedding-in instead of trusting the first setting on 4T-M802048/M802011.
• The medium M family at 41.275 mm bore (82.55×26.543 mm assembled) is one of several inch families sharing similar bores; cross-series swaps change OD, T and contact angle, so match the full M802048/M802011 reference at purchase.
• Shaft and housing fillets must clear the ring chamfers of M802048 and M802011; use undercut shoulders so the rings seat on the face, not on a radius.
• Inch and metric bores collide on paper — 41.275 mm is 1.625 in, not a round metric size; a metric bearing that seems 0.1 mm off will not seat on the inch shaft.
• Fit selection follows the rotating ring: a rotating cone on a 41.275 mm shaft takes a k5/m5 seat, and a rotating cup reverses the logic — decide from the load diagram, not from habit.
• The 89/104 kN ratings here are NTN Ball and Roller Bearings CAT.No.2203E figures for 4T-M802048/M802011; 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.