MPNbase

50×90×23 mm bearings

31 models from 3 brands across 6 types share this ISO 15 envelope: 50 mm bore, 90 mm outside diameter, 23 mm width (1.969×3.543×0.906 in), 20 mm radial section.

31 models fit this space 3 brands 31 with catalogue C rating

Dimensional interchange — verify before substituting

These bearings are interchangeable on boundary dimensions per ISO 15 — same bore, OD and width. They are not guaranteed drop-in equivalents: compare load ratings, seals, clearance, cage, precision and axial-locating design for the specific duty. Models without a catalogue C rating on this site carry ISO 15 geometry only; request the manufacturer table before a load-critical replacement.

Model Type Brand Seal Clearance C (kN) C0 (kN) Mass (g)
2210 Self-Aligning Ball NTN open — 23.3 8.45 598
2210-E-2RS1KTN9 Self-Aligning Ball SKF 2RS CN 22.9 8.15 570
2210-E-2RS1TN9 Self-Aligning Ball SKF 2RS CN 22.9 8.15 570
2210-EKTN9 Self-Aligning Ball SKF open CN 33.8 11.2 600
2210-ETN9 Self-Aligning Ball SKF open CN 33.8 11.2 600
2210K Self-Aligning Ball NTN open — 23.3 8.45 598
22210 Spherical Roller SKF open CN 107 108 630
22210-EK Spherical Roller SKF open CN 107 108 900
22210EAD1 Spherical Roller NTN open CN 130 124 614
22210EAKD1 Spherical Roller NTN open CN 130 124 602
22210EMD1 Spherical Roller NTN open CN 125 117 616
22210EMKD1 Spherical Roller NTN open CN 125 117 604
4210-ATN9 Deep Groove Ball SKF open CN 41 40 580
62210-2RS Deep Groove Ball SKF 2RS CN 35.1 23.2 540
C2210-KTN9 CARB Toroidal Roller SKF open CN 98 100 600
C2210-TN9 CARB Toroidal Roller SKF open CN 98 100 600
C2210-V CARB Toroidal Roller SKF open CN 114 122 630
N2210 Cylindrical Roller NTN open CN 71 73.5 560
N2210EA Cylindrical Roller NTN open CN 98.5 97 584
NA-2210-2RS Support Rollers SKF open CN 28.1 43 690
NF2210EA Cylindrical Roller NTN open CN 98.5 97 584
NJ2210 Cylindrical Roller NTN open CN 71 73.5 560
NJ2210-ECP Cylindrical Roller SKF open CN 90 88 570
NJ2210EA Cylindrical Roller NTN open CN 98.5 97 584
NU2210 Cylindrical Roller SKF open CN 90 88 560
NU2210-NTN Cylindrical Roller NTN open CN 71 73.5 560
NU2210EA Cylindrical Roller NTN open CN 98.5 97 584
NUP2210 Cylindrical Roller NTN open CN 71 73.5 560
NUP2210-ECP Cylindrical Roller SKF open CN 90 88 590
NUP2210EA Cylindrical Roller NTN open CN 98.5 97 584
SL182210-XL Cylindrical Roller FAG open CN 109 111 640

Note: catalogue dynamic load ratings for this envelope span 22.9– 130.0 kN — a 468% spread between designs in the very same 50×90×23 mm space. The higher-rated unit is not an upgrade for every duty (it may run at lower limiting speed), but ignoring the gap will over- or under-life the replacement.

Substitution verification checklist

  1. Load rating. Check C (dynamic) and C0 (static) against the original life calculation — the table above shows which models carry verified catalogue values.
  2. Sealing. Open, -ZZ shields and -2RS contact seals are not equivalent in friction, speed or contamination protection; match the housing environment, not just the suffix on the old box.
  3. Internal clearance. CN/C3/C4 changes with fit and operating temperature; an interference inner-ring mount commonly needs C3 where the bench bearing ran CN.
  4. Cage and precision. Stamped steel, machined brass and polymer cages, and P0/P6/P5 tolerance classes, carry different speed and shock limits.
  5. Locating behaviour. Within one envelope an NU cylindrical roller floats axially while an NJ/NUP locates; ball designs take thrust that roller locating schemes do not. Preserve the shaft's locating arrangement.

Browse all 50 mm bore bearings for wider or narrower sections, or open a model page for naming-rule decode, applications and graded cross references: 2210, 2210-E-2RS1KTN9, 2210-E-2RS1TN9, 2210-EKTN9, 2210-ETN9, 2210K, 22210, 22210-EK, 22210EAD1, 22210EAKD1, 22210EMD1, 22210EMKD1, 4210-ATN9, 62210-2RS, C2210-KTN9, C2210-TN9, C2210-V, N2210, N2210EA, NA-2210-2RS, NF2210EA, NJ2210, NJ2210-ECP, NJ2210EA, NU2210, NU2210-NTN, NU2210EA, NUP2210, NUP2210-ECP, NUP2210EA, SL182210-XL.

Frequently asked questions

Are all 50×90×23 mm bearings interchangeable?

They share the same ISO 15 boundary dimensions — 50 mm bore, 90 mm OD, 23 mm width (1.969×3.543×0.906 in) — so they fit the same shaft, housing bore and axial space. Interchangeability ends at the envelope: dynamic load rating, seal arrangement, internal clearance, cage and precision class differ between the 31 models listed here and must be checked against the duty before substitution.

Is it a drop-in replacement if two bearings both measure 50×90×23?

Only after verification. Confirm five things in order: (1) the C/C0 load ratings meet the original life calculation, (2) the seal type is equivalent or acceptable for the contamination level (open vs -ZZ vs -2RS), (3) internal clearance matches (CN/C3/C4 — an interference fit changes residual play), (4) cage material and precision class suit the speed, and (5) the axial-locating behaviour is the same (for example an NU cylindrical roller floats while an NJ locates one way). Same dimensions alone never guarantee equal performance.

What is 50×90×23 mm in inches?

50×90×23 mm converts to 1.969×3.543×0.906 in, with a 20 mm (0.787 in) radial section height. These are the ISO 15 general-plan envelope dimensions shared across manufacturers, which is why models such as 2210, 2210-E-2RS1KTN9, 2210-E-2RS1TN9 mount in the same space despite different internal designs.