MPNbase

20×47×14 mm bearings

45 models from 4 brands across 6 types share this ISO 15 envelope: 20 mm bore, 47 mm outside diameter, 14 mm width (0.787×1.850×0.551 in), 13.5 mm radial section.

45 models fit this space 4 brands 45 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)
11204-ETN9 Self-Aligning Ball SKF open CN 12.7 3.4 180
1204 Self-Aligning Ball NTN open — 10 2.61 120
1204-EKTN9 Self-Aligning Ball SKF open CN 12.7 3.4 120
1204-ETN9 Self-Aligning Ball SKF open CN 12.7 3.4 120
1204K Self-Aligning Ball NTN open — 10 2.61 120
1726204-2RS1 Insert (Y-bearings) SKF 2RS CN 12.7 6.55 100
6204 Deep Groove Ball SKF open CN 13.5 6.55 110
6204-2RS Deep Groove Ball SKF 2RS CN 13.5 6.55 110
6204-2RS-FAG Deep Groove Ball FAG 2RS CN 14.7 6.6 104
6204-2RS-NSK Deep Groove Ball NSK 2RS CN 14.1 6.6 107
6204-2RS-NTN Deep Groove Ball NTN 2RS CN 14.2 6.65 106
6204-FAG Deep Groove Ball FAG open CN 14.7 6.6 100
6204-NSK Deep Groove Ball NSK open CN 14.1 6.6 107
6204-NTN Deep Groove Ball NTN open CN 14.2 6.65 106
6204-RSR Deep Groove Ball SKF RSR CN 13.5 6.55 110
6204-RSR-NSK Deep Groove Ball NSK RSR CN 14.1 6.6 107
6204-RSR-NTN Deep Groove Ball NTN RSR CN 14.2 6.65 106
6204-ZZ Deep Groove Ball SKF ZZ CN 13.5 6.55 110
6204-ZZ-FAG Deep Groove Ball FAG ZZ CN 14.7 6.6 105
6204-ZZ-NSK Deep Groove Ball NSK ZZ CN 14.1 6.6 107
6204-ZZ-NTN Deep Groove Ball NTN ZZ CN 14.2 6.65 106
7204 Angular Contact Ball SKF open CN 13.3 7.65 110
7204-ACCBM Angular Contact Ball SKF open CN 16 9.3 110
7204-BE-2RZP Angular Contact Ball SKF RSR CN 13.3 7.65 150
7204-BECBM Angular Contact Ball SKF open CN 14.3 8.15 110
7204-BECBP Angular Contact Ball SKF open CN 14.3 8.15 110
7204-BECBPH Angular Contact Ball SKF open CN 14.3 8.15 110
7204-BECBY Angular Contact Ball SKF open CN 14.3 8.15 110
7204-BEP Angular Contact Ball SKF open CN 13.3 7.65 110
7204-NTN Angular Contact Ball NTN open CN 16.1 8.4 100
7204B Angular Contact Ball NTN open CN 14.7 7.7 102
BMO-6204-048S2-UA008A Sensor Bearing Units SKF — — 12.7 6.55 130
BMO-6204-048S2-UA108A Sensor Bearing Units SKF — — 12.7 6.55 140
N204-ECP Cylindrical Roller SKF open CN 28.5 22 110
N204EA Cylindrical Roller NTN open CN 32.5 24.7 110
NF204EA Cylindrical Roller NTN open CN 32.5 24.7 110
NJ204-ECP Cylindrical Roller SKF open CN 28.5 22 110
NJ204EA Cylindrical Roller NTN open CN 32.5 24.7 110
NU204 Cylindrical Roller SKF open CN 28.5 22 110
NU204EA Cylindrical Roller NTN open CN 32.5 24.7 110
NUP204-ECP Cylindrical Roller SKF open CN 28.5 22 120
NUP204EA Cylindrical Roller NTN open CN 32.5 24.7 110
W6204 Deep Groove Ball SKF open CN 10.8 6.55 100
W6204-2RS Deep Groove Ball SKF 2RS CN 10.8 6.55 105
W6204-ZZ Deep Groove Ball SKF ZZ CN 10.8 6.55 106

Note: catalogue dynamic load ratings for this envelope span 10.0– 32.5 kN — a 225% spread between designs in the very same 20×47×14 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 20 mm bore bearings for wider or narrower sections, or open a model page for naming-rule decode, applications and graded cross references: 11204-ETN9, 1204, 1204-EKTN9, 1204-ETN9, 1204K, 1726204-2RS1, 6204, 6204-2RS, 6204-2RS-FAG, 6204-2RS-NSK, 6204-2RS-NTN, 6204-FAG, 6204-NSK, 6204-NTN, 6204-RSR, 6204-RSR-NSK, 6204-RSR-NTN, 6204-ZZ, 6204-ZZ-FAG, 6204-ZZ-NSK, 6204-ZZ-NTN, 7204, 7204-ACCBM, 7204-BE-2RZP, 7204-BECBM, 7204-BECBP, 7204-BECBPH, 7204-BECBY, 7204-BEP, 7204-NTN, 7204B, BMO-6204-048S2-UA008A, BMO-6204-048S2-UA108A, N204-ECP, N204EA, NF204EA, NJ204-ECP, NJ204EA, NU204, NU204EA, NUP204-ECP, NUP204EA, W6204, W6204-2RS, W6204-ZZ.

Frequently asked questions

Are all 20×47×14 mm bearings interchangeable?

They share the same ISO 15 boundary dimensions — 20 mm bore, 47 mm OD, 14 mm width (0.787×1.850×0.551 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 45 models listed here and must be checked against the duty before substitution.

Is it a drop-in replacement if two bearings both measure 20×47×14?

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 20×47×14 mm in inches?

20×47×14 mm converts to 0.787×1.850×0.551 in, with a 13.5 mm (0.531 in) radial section height. These are the ISO 15 general-plan envelope dimensions shared across manufacturers, which is why models such as 11204-ETN9, 1204, 1204-EKTN9 mount in the same space despite different internal designs.