MPNbase

130×210×64 mm bearings

8 models from 2 brands across 2 types share this ISO 15 envelope: 130 mm bore, 210 mm outside diameter, 64 mm width (5.118×8.268×2.520 in), 40 mm radial section.

8 models fit this space 2 brands 8 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)
23126 Spherical Roller SKF open CN 586 780 8800
23126-CCK-W33 Spherical Roller SKF open CN 586 780 12000
23126EAD1 Spherical Roller NTN open CN 710 906 8450
23126EAKD1 Spherical Roller NTN open CN 710 906 8190
23126EMD1 Spherical Roller NTN open CN 710 906 8510
23126EMKD1 Spherical Roller NTN open CN 710 906 8250
323126 Tapered Roller NTN open CN 455 675 8380
413126 Tapered Roller NTN open CN 350 485 7830

Note: catalogue dynamic load ratings for this envelope span 350.0– 710.0 kN — a 103% spread between designs in the very same 130×210×64 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 130 mm bore bearings for wider or narrower sections, or open a model page for naming-rule decode, applications and graded cross references: 23126, 23126-CCK-W33, 23126EAD1, 23126EAKD1, 23126EMD1, 23126EMKD1, 323126, 413126.

Frequently asked questions

Are all 130×210×64 mm bearings interchangeable?

They share the same ISO 15 boundary dimensions — 130 mm bore, 210 mm OD, 64 mm width (5.118×8.268×2.520 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 8 models listed here and must be checked against the duty before substitution.

Is it a drop-in replacement if two bearings both measure 130×210×64?

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 130×210×64 mm in inches?

130×210×64 mm converts to 5.118×8.268×2.520 in, with a 40 mm (1.575 in) radial section height. These are the ISO 15 general-plan envelope dimensions shared across manufacturers, which is why models such as 23126, 23126-CCK-W33, 23126EAD1 mount in the same space despite different internal designs.