MPNbase

90×190×64 mm bearings

23 models from 3 brands across 4 types share this ISO 15 envelope: 90 mm bore, 190 mm outside diameter, 64 mm width (3.543×7.480×2.520 in), 50 mm radial section.

23 models fit this space 3 brands 23 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)
22318 Spherical Roller SKF open CN 637 695 9050
22318-EK Spherical Roller SKF open CN 637 695 10500
22318EAD1 Spherical Roller NTN open CN 668 652 8420
22318EAKD1 Spherical Roller NTN open CN 668 652 8250
22318EMD1 Spherical Roller NTN open CN 668 652 8530
22318EMKD1 Spherical Roller NTN open CN 668 652 8350
2318 Self-Aligning Ball NTN open — 154 57.5 7750
2318-K Self-Aligning Ball SKF open CN 151 57 8450
2318K Self-Aligning Ball NTN open — 154 57.5 7750
C2318 CARB Toroidal Roller SKF open CN 610 695 8650
C2318-K CARB Toroidal Roller SKF open CN 610 695 8650
N2318 Cylindrical Roller NTN open CN 360 395 7790
NJ2318 Cylindrical Roller NTN open CN 360 395 7790
NJ2318-ECP Cylindrical Roller SKF open CN 500 540 8150
NJ2318E Cylindrical Roller NTN open CN 485 535 —
NJG2318-VH Cylindrical Roller SKF open CN 550 680 8750
NU2318 Cylindrical Roller NTN open CN 360 395 7790
NU2318-ECP Cylindrical Roller SKF open CN 500 540 8000
NU2318E Cylindrical Roller NTN open CN 485 535 —
NUP2318 Cylindrical Roller NTN open CN 360 395 7790
NUP2318-ECP Cylindrical Roller SKF open CN 500 540 8250
NUP2318E Cylindrical Roller NTN open CN 485 535 —
SL192318-TB-XL Cylindrical Roller FAG open CN 620 650 8830

Note: catalogue dynamic load ratings for this envelope span 151.0– 668.0 kN — a 342% spread between designs in the very same 90×190×64 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 90 mm bore bearings for wider or narrower sections, or open a model page for naming-rule decode, applications and graded cross references: 22318, 22318-EK, 22318EAD1, 22318EAKD1, 22318EMD1, 22318EMKD1, 2318, 2318-K, 2318K, C2318, C2318-K, N2318, NJ2318, NJ2318-ECP, NJ2318E, NJG2318-VH, NU2318, NU2318-ECP, NU2318E, NUP2318, NUP2318-ECP, NUP2318E, SL192318-TB-XL.

Frequently asked questions

Are all 90×190×64 mm bearings interchangeable?

They share the same ISO 15 boundary dimensions — 90 mm bore, 190 mm OD, 64 mm width (3.543×7.480×2.520 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 23 models listed here and must be checked against the duty before substitution.

Is it a drop-in replacement if two bearings both measure 90×190×64?

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 90×190×64 mm in inches?

90×190×64 mm converts to 3.543×7.480×2.520 in, with a 50 mm (1.969 in) radial section height. These are the ISO 15 general-plan envelope dimensions shared across manufacturers, which is why models such as 22318, 22318-EK, 22318EAD1 mount in the same space despite different internal designs.