MPNbase

60×130×31 mm bearings

49 models from 3 brands across 5 types share this ISO 15 envelope: 60 mm bore, 130 mm outside diameter, 31 mm width (2.362×5.118×1.220 in), 35 mm radial section.

49 models fit this space 3 brands 49 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)
1312 Self-Aligning Ball NTN open — 57.5 20.8 2000
1312-EKTN9 Self-Aligning Ball SKF open CN 58.5 22 1950
1312-ETN9 Self-Aligning Ball SKF open CN 58.5 22 1950
1312K Self-Aligning Ball NTN open — 57.5 20.8 2000
21312 Spherical Roller SKF open CN 217 240 2100
21312-EK Spherical Roller SKF open CN 217 240 2350
21312-NTN Spherical Roller NTN open CN 186 191 2100
21312K Spherical Roller NTN open CN 186 191 2070
312 Deep Groove Ball SKF open CN 91.3 78 1850
312-ZZ Deep Groove Ball SKF ZZ CN 91.3 78 1850
6312 Deep Groove Ball SKF open CN 85.2 52 1700
6312-2RS Deep Groove Ball SKF 2RS CN 85.2 52 1750
6312-2RS-NSK Deep Groove Ball NSK 2RS CN 90 52 1720
6312-2RS-NTN Deep Groove Ball NTN 2RS CN 90.5 52 1730
6312-M Deep Groove Ball SKF open CN 85.2 52 2100
6312-NSK Deep Groove Ball NSK open CN 90 52 1720
6312-NTN Deep Groove Ball NTN open CN 90.5 52 1730
6312-RSR Deep Groove Ball NSK RSR CN 90 52 1720
6312-RSR-NTN Deep Groove Ball NTN RSR CN 90.5 52 1730
6312-ZZ Deep Groove Ball SKF ZZ CN 85.2 52 1800
6312-ZZ-NSK Deep Groove Ball NSK ZZ CN 90 52 1720
6312-ZZ-NTN Deep Groove Ball NTN ZZ CN 90.5 52 1730
7312 Angular Contact Ball SKF open CN 95.6 69.5 1750
7312-ACCBM Angular Contact Ball SKF open CN 116 85 1750
7312-BECBM Angular Contact Ball SKF open CN 104 76.5 1750
7312-BECBP Angular Contact Ball SKF open CN 104 76.5 1750
7312-BECBPH Angular Contact Ball SKF open CN 104 76.5 1750
7312-BECBY Angular Contact Ball SKF open CN 104 76.5 1750
7312-BEP Angular Contact Ball SKF open CN 95.6 69.5 1750
7312-NTN Angular Contact Ball NTN open CN 109 71.5 1740
7312B Angular Contact Ball NTN open CN 99.5 66 1770
N312 Cylindrical Roller NTN open CN 137 126 1760
N312-ECP Cylindrical Roller SKF open CN 173 160 1750
N312EA Cylindrical Roller NTN open CN 177 157 1770
NF312 Cylindrical Roller NTN open CN 137 126 1760
NF312EA Cylindrical Roller NTN open CN 177 157 1770
NJ312 Cylindrical Roller NTN open CN 137 126 1760
NJ312-ECP Cylindrical Roller SKF open CN 173 160 1850
NJ312EA Cylindrical Roller NTN open CN 177 157 1770
NU312 Cylindrical Roller SKF open CN 173 160 1750
NU312-NTN Cylindrical Roller NTN open CN 137 126 1760
NU312EA Cylindrical Roller NTN open CN 177 157 1770
NUP312 Cylindrical Roller NTN open CN 137 126 1760
NUP312-ECP Cylindrical Roller SKF open CN 173 160 1900
NUP312EA Cylindrical Roller NTN open CN 177 157 1770
QJ-312-MA Angular Contact Ball SKF open CN 156 137 2150
QJ-312-N2MA Angular Contact Ball SKF open CN 156 137 2150
QJ-312-PHAS Angular Contact Ball SKF open CN 156 137 2150
QJ312 Angular Contact Ball NTN open CN 135 198 2180

Note: catalogue dynamic load ratings for this envelope span 57.5– 217.0 kN — a 277% spread between designs in the very same 60×130×31 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 60 mm bore bearings for wider or narrower sections, or open a model page for naming-rule decode, applications and graded cross references: 1312, 1312-EKTN9, 1312-ETN9, 1312K, 21312, 21312-EK, 21312-NTN, 21312K, 312, 312-ZZ, 6312, 6312-2RS, 6312-2RS-NSK, 6312-2RS-NTN, 6312-M, 6312-NSK, 6312-NTN, 6312-RSR, 6312-RSR-NTN, 6312-ZZ, 6312-ZZ-NSK, 6312-ZZ-NTN, 7312, 7312-ACCBM, 7312-BECBM, 7312-BECBP, 7312-BECBPH, 7312-BECBY, 7312-BEP, 7312-NTN, 7312B, N312, N312-ECP, N312EA, NF312, NF312EA, NJ312, NJ312-ECP, NJ312EA, NU312, NU312-NTN, NU312EA, NUP312, NUP312-ECP, NUP312EA, QJ-312-MA, QJ-312-N2MA, QJ-312-PHAS, QJ312.

Frequently asked questions

Are all 60×130×31 mm bearings interchangeable?

They share the same ISO 15 boundary dimensions — 60 mm bore, 130 mm OD, 31 mm width (2.362×5.118×1.220 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 49 models listed here and must be checked against the duty before substitution.

Is it a drop-in replacement if two bearings both measure 60×130×31?

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 60×130×31 mm in inches?

60×130×31 mm converts to 2.362×5.118×1.220 in, with a 35 mm (1.378 in) radial section height. These are the ISO 15 general-plan envelope dimensions shared across manufacturers, which is why models such as 1312, 1312-EKTN9, 1312-ETN9 mount in the same space despite different internal designs.