MPNbase

50×110×40 mm bearings

26 models from 3 brands across 4 types share this ISO 15 envelope: 50 mm bore, 110 mm outside diameter, 40 mm width (1.969×4.331×1.575 in), 30 mm radial section.

26 models fit this space 3 brands 26 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)
22310 Spherical Roller SKF open CN 228 224 1900
22310-EK Spherical Roller SKF open CN 228 224 2250
22310EAD1 Spherical Roller NTN open CN 250 232 1820
22310EAKD1 Spherical Roller NTN open CN 250 232 1790
22310EMD1 Spherical Roller NTN open CN 250 232 1840
22310EMKD1 Spherical Roller NTN open CN 250 232 1800
2310 Self-Aligning Ball NTN open — 65 20.2 1630
2310-E-2RS1KTN9 Self-Aligning Ball SKF 2RS CN 43.6 14 1650
2310-E-2RS1TN9 Self-Aligning Ball SKF 2RS CN 43.6 14 1650
2310-K Self-Aligning Ball SKF open CN 63.7 20 1650
2310K Self-Aligning Ball NTN open — 65 20.2 1630
4310-ATN9 Deep Groove Ball SKF open CN 81.9 69.5 1700
62310-2RS Deep Groove Ball SKF 2RS CN 61.8 38 1600
N2310 Cylindrical Roller NTN open CN 134 131 1670
N2310EA Cylindrical Roller NTN open CN 192 187 1750
NF2310EA Cylindrical Roller NTN open CN 192 187 1750
NJ2310 Cylindrical Roller NTN open CN 134 131 1670
NJ2310-ECP Cylindrical Roller SKF open CN 186 186 1750
NJ2310EA Cylindrical Roller NTN open CN 192 187 1750
NU2310 Cylindrical Roller SKF open CN 186 186 1750
NU2310-NTN Cylindrical Roller NTN open CN 134 131 1670
NU2310EA Cylindrical Roller NTN open CN 192 187 1750
NUP2310 Cylindrical Roller NTN open CN 134 131 1670
NUP2310-ECP Cylindrical Roller SKF open CN 186 186 1750
NUP2310EA Cylindrical Roller NTN open CN 192 187 1750
SL192310-XL Cylindrical Roller FAG open CN 232 215 1810

Note: catalogue dynamic load ratings for this envelope span 43.6– 250.0 kN — a 473% spread between designs in the very same 50×110×40 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: 22310, 22310-EK, 22310EAD1, 22310EAKD1, 22310EMD1, 22310EMKD1, 2310, 2310-E-2RS1KTN9, 2310-E-2RS1TN9, 2310-K, 2310K, 4310-ATN9, 62310-2RS, N2310, N2310EA, NF2310EA, NJ2310, NJ2310-ECP, NJ2310EA, NU2310, NU2310-NTN, NU2310EA, NUP2310, NUP2310-ECP, NUP2310EA, SL192310-XL.

Frequently asked questions

Are all 50×110×40 mm bearings interchangeable?

They share the same ISO 15 boundary dimensions — 50 mm bore, 110 mm OD, 40 mm width (1.969×4.331×1.575 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 26 models listed here and must be checked against the duty before substitution.

Is it a drop-in replacement if two bearings both measure 50×110×40?

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 50×110×40 mm in inches?

50×110×40 mm converts to 1.969×4.331×1.575 in, with a 30 mm (1.181 in) radial section height. These are the ISO 15 general-plan envelope dimensions shared across manufacturers, which is why models such as 22310, 22310-EK, 22310EAD1 mount in the same space despite different internal designs.