25×52×15 mm bearings

47 models from 4 brands across 6 types share this ISO 15 envelope: 25 mm bore, 52 mm outside diameter, 15 mm width (0.984×2.047×0.591 in), 13.5 mm radial section.

47 models fit this space 4 brands 47 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)
11205-ETN9 Self-Aligning Ball SKF open CN 14.3 4 220
1205 Self-Aligning Ball NTN open — 12.2 3.3 140
1205-EKTN9 Self-Aligning Ball SKF open CN 14.3 4 140
1205-ETN9 Self-Aligning Ball SKF open CN 14.3 4 140
1205K Self-Aligning Ball NTN open — 12.2 3.3 140
1726205-2RS1 Insert (Y-bearings) SKF 2RS CN 14 7.8 120
6205 Deep Groove Ball SKF open CN 14.8 7.8 130
6205-2RS Deep Groove Ball SKF 2RS CN 14.8 7.8 130
6205-2RS-FAG Deep Groove Ball FAG 2RS CN 15.9 7.8 127
6205-2RS-NSK Deep Groove Ball NSK 2RS CN 15.4 7.85 129
6205-2RS-NTN Deep Groove Ball NTN 2RS CN 15.5 7.85 128
6205-FAG Deep Groove Ball FAG open CN 15.9 7.8 121
6205-NSK Deep Groove Ball NSK open CN 15.4 7.85 129
6205-NTN Deep Groove Ball NTN open CN 15.5 7.85 128
6205-RSR Deep Groove Ball SKF RSR CN 14.8 7.8 130
6205-RSR-NSK Deep Groove Ball NSK RSR CN 15.4 7.85 129
6205-RSR-NTN Deep Groove Ball NTN RSR CN 15.5 7.85 128
6205-ZZ Deep Groove Ball SKF ZZ CN 14.8 7.8 130
6205-ZZ-FAG Deep Groove Ball FAG ZZ CN 15.9 7.8 130
6205-ZZ-NSK Deep Groove Ball NSK ZZ CN 15.4 7.85 129
6205-ZZ-NTN Deep Groove Ball NTN ZZ CN 15.5 7.85 128
7205 Angular Contact Ball SKF open CN 14.8 9.3 130
7205-ACCBM Angular Contact Ball SKF open CN 18 11.4 130
7205-BE-2RZP Angular Contact Ball SKF RSR CN 14.8 9.3 130
7205-BECBM Angular Contact Ball SKF open CN 15.6 10 130
7205-BECBP Angular Contact Ball SKF open CN 15.6 10 130
7205-BECBPH Angular Contact Ball SKF open CN 15.6 10 130
7205-BECBY Angular Contact Ball SKF open CN 15.6 10 130
7205-BEP Angular Contact Ball SKF open CN 14.8 9.3 130
7205-BEY Angular Contact Ball SKF open CN 14.8 9.3 130
7205-NTN Angular Contact Ball NTN open CN 18 10.3 125
7205B Angular Contact Ball NTN open CN 16.4 9.4 129
BMO-6205-048S2-UA008A Sensor Bearing Units SKF — — 14 7.8 160
BMO-6205-048S2-UA108A Sensor Bearing Units SKF — — 14 7.8 170
N205-ECP Cylindrical Roller SKF open CN 32.5 27 130
N205EA Cylindrical Roller NTN open CN 34.5 27.7 130
NF205EA Cylindrical Roller NTN open CN 34.5 27.7 130
NJ205-ECP Cylindrical Roller SKF open CN 32.5 27 140
NJ205EA Cylindrical Roller NTN open CN 34.5 27.7 130
NU205 Cylindrical Roller SKF open CN 32.5 27 130
NU205EA Cylindrical Roller NTN open CN 34.5 27.7 130
NUP205-ECP Cylindrical Roller SKF open CN 32.5 27 140
NUP205EA Cylindrical Roller NTN open CN 34.5 27.7 130
QJ-205-N2MA Angular Contact Ball SKF open CN 27 21.2 160
W6205 Deep Groove Ball SKF open CN 11.7 7.65 122
W6205-2RS Deep Groove Ball SKF 2RS CN 11.7 7.65 128
W6205-ZZ Deep Groove Ball SKF ZZ CN 11.7 7.65 130

Note: catalogue dynamic load ratings for this envelope span 11.7– 34.5 kN — a 195% spread between designs in the very same 25×52×15 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 25 mm bore bearings for wider or narrower sections, or open a model page for naming-rule decode, applications and graded cross references: 11205-ETN9, 1205, 1205-EKTN9, 1205-ETN9, 1205K, 1726205-2RS1, 6205, 6205-2RS, 6205-2RS-FAG, 6205-2RS-NSK, 6205-2RS-NTN, 6205-FAG, 6205-NSK, 6205-NTN, 6205-RSR, 6205-RSR-NSK, 6205-RSR-NTN, 6205-ZZ, 6205-ZZ-FAG, 6205-ZZ-NSK, 6205-ZZ-NTN, 7205, 7205-ACCBM, 7205-BE-2RZP, 7205-BECBM, 7205-BECBP, 7205-BECBPH, 7205-BECBY, 7205-BEP, 7205-BEY, 7205-NTN, 7205B, BMO-6205-048S2-UA008A, BMO-6205-048S2-UA108A, N205-ECP, N205EA, NF205EA, NJ205-ECP, NJ205EA, NU205, NU205EA, NUP205-ECP, NUP205EA, QJ-205-N2MA, W6205, W6205-2RS, W6205-ZZ.

Frequently asked questions

Are all 25×52×15 mm bearings interchangeable?

They share the same ISO 15 boundary dimensions — 25 mm bore, 52 mm OD, 15 mm width (0.984×2.047×0.591 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 47 models listed here and must be checked against the duty before substitution.

Is it a drop-in replacement if two bearings both measure 25×52×15?

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 25×52×15 mm in inches?

25×52×15 mm converts to 0.984×2.047×0.591 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 11205-ETN9, 1205, 1205-EKTN9 mount in the same space despite different internal designs.