MPNbase

17×47×14 mm bearings

29 models from 4 brands across 4 types share this ISO 15 envelope: 17 mm bore, 47 mm outside diameter, 14 mm width (0.669×1.850×0.551 in), 15 mm radial section.

29 models fit this space 4 brands 29 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)
1303 Self-Aligning Ball NTN open — 12.7 3.2 130
1303-ETN9 Self-Aligning Ball SKF open CN 12.7 3.4 120
6303 Deep Groove Ball SKF open CN 14.3 6.55 110
6303-2RS Deep Groove Ball NSK 2RS CN 15 6.65 113
6303-2RS-FAG Deep Groove Ball FAG 2RS CN 15.8 6.5 118
6303-2RS-NTN Deep Groove Ball NTN 2RS CN 15 6.55 115
6303-FAG Deep Groove Ball FAG open CN 15.8 6.5 114
6303-NSK Deep Groove Ball NSK open CN 15 6.65 113
6303-NTN Deep Groove Ball NTN open CN 15 6.55 115
6303-RSR Deep Groove Ball SKF RSR CN 14.3 6.55 120
6303-RSR-NSK Deep Groove Ball NSK RSR CN 15 6.65 113
6303-RSR-NTN Deep Groove Ball NTN RSR CN 15 6.55 115
6303-ZZ Deep Groove Ball SKF ZZ CN 14.3 6.55 120
6303-ZZ-FAG Deep Groove Ball FAG ZZ CN 15.8 6.5 117
6303-ZZ-NSK Deep Groove Ball NSK ZZ CN 15 6.65 113
6303-ZZ-NTN Deep Groove Ball NTN ZZ CN 15 6.55 115
7303 Angular Contact Ball SKF open CN 15.9 8.3 110
7303-BE-2RZP Angular Contact Ball SKF RSR CN 15.9 8.3 110
7303-BECBP Angular Contact Ball SKF open CN 15.9 8.3 110
7303-BEP Angular Contact Ball SKF open CN 15.9 8.3 110
7303-NTN Angular Contact Ball NTN open CN 17.7 8.65 107
7303B Angular Contact Ball NTN open CN 16.4 8.05 109
N303-ECP Cylindrical Roller SKF open CN 28.5 20.4 120
NJ303-ECP Cylindrical Roller SKF open CN 28.5 20.4 120
NU303-ECP Cylindrical Roller SKF open CN 28.5 20.4 120
QJ-303-N2MA Angular Contact Ball SKF open CN 23.4 15 140
W6303 Deep Groove Ball SKF open CN 11.7 6.55 107
W6303-2RS Deep Groove Ball SKF 2RS CN 11.7 6.55 112
W6303-ZZ Deep Groove Ball SKF ZZ CN 11.7 6.55 113

Note: catalogue dynamic load ratings for this envelope span 11.7– 28.5 kN — a 144% spread between designs in the very same 17×47×14 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 17 mm bore bearings for wider or narrower sections, or open a model page for naming-rule decode, applications and graded cross references: 1303, 1303-ETN9, 6303, 6303-2RS, 6303-2RS-FAG, 6303-2RS-NTN, 6303-FAG, 6303-NSK, 6303-NTN, 6303-RSR, 6303-RSR-NSK, 6303-RSR-NTN, 6303-ZZ, 6303-ZZ-FAG, 6303-ZZ-NSK, 6303-ZZ-NTN, 7303, 7303-BE-2RZP, 7303-BECBP, 7303-BEP, 7303-NTN, 7303B, N303-ECP, NJ303-ECP, NU303-ECP, QJ-303-N2MA, W6303, W6303-2RS, W6303-ZZ.

Frequently asked questions

Are all 17×47×14 mm bearings interchangeable?

They share the same ISO 15 boundary dimensions — 17 mm bore, 47 mm OD, 14 mm width (0.669×1.850×0.551 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 29 models listed here and must be checked against the duty before substitution.

Is it a drop-in replacement if two bearings both measure 17×47×14?

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 17×47×14 mm in inches?

17×47×14 mm converts to 0.669×1.850×0.551 in, with a 15 mm (0.591 in) radial section height. These are the ISO 15 general-plan envelope dimensions shared across manufacturers, which is why models such as 1303, 1303-ETN9, 6303 mount in the same space despite different internal designs.