NTN NU 30/500 ECMA

Cylindrical · Open

The seat — 500 MM × 720 MM × 167 MM

Bore

500 MM

Outside dia

720 MM

Width

167 MM

Type

Cylindrical

Seal

Open

Clearance

CN (Normal)

Precision

Dynamic C

3800.0 kN

Static C0

7350.0 kN

10 other designations in the catalogue share this bore × outside diameter × width. Each was compared on the four fields every bearing row carries — Type, Seal, Clearance, Precision — as recorded, case- and separator-insensitively. All four agreeing puts a designation in the first list; anything else, a difference or a blank, puts it in the second with the fields named.

Candidates at the recorded dimensions above

May substitute — 0 designations

No designation in this seat matches this part on all four compared fields.

Check before substituting — 10 designations

Part number	Manufacturer	C	Differs from this part
230/500 CA/C083W509	NTN	4358.0 kN	Type: Spherical — this part: Cylindrical
230/500 CA/C08W507	NTN	4358.0 kN	Type: Spherical — this part: Cylindrical
230/500 CA/C08W509	NTN	4358.0 kN	Type: Spherical — this part: Cylindrical
230/500 CA/C3W33	NTN	4358.0 kN	Type: Spherical — this part: Cylindrical Clearance: C3 — this part: CN (Normal)
230/500 CA/W33	NTN	4358.0 kN	Type: Spherical — this part: Cylindrical
230/500 CA/W33VQ424	NTN	4358.0 kN	Type: Spherical — this part: Cylindrical
230/500 CAK/C083W507	NTN	4358.0 kN	Type: Spherical — this part: Cylindrical
230/500 CAK/C08W507	NTN	4358.0 kN	Type: Spherical — this part: Cylindrical
230/500 CAK/W33	NTN	4358.0 kN	Type: Spherical — this part: Cylindrical
C 30/500 M	NTN	4250.0 kN	Type: Spherical — this part: Cylindrical

What this sheet is — and what the catalogue did not say

The envelope is recorded dimensions only: the same bore, outside diameter and width. Every designation above shares all three, or it would not be on this page.
The four compared fields are Type, Seal, Clearance, Precision. Two recorded spellings were counted to mean one value and are read as one: CN/Normal = CN, and ABEC-1/P0 = P0. A third precision spelling, P0/Class4, is deliberately not equated with either — the catalogue's meaning for it has not been sourced, so it lands in the warnings where both spellings are printed for the reader to judge.
A blank is a difference. Missing is the absence of the proof, not the proof.
Cage material and ring material are never compared: the catalogue records neither, on any bearing row.
Suffixes the catalogue does not record separately — a snap ring (NR) and anything else outside those four fields — are not compared, and this sheet does not claim they match.
Ranking is recorded dynamic load, strongest first, with an unrecorded rating ranked last. It orders the lists; it is not a verdict.
Compiled from catalogue records. This is not a manufacturer interchange list, no manufacturer has confirmed any line on it, and it does not know what job the bearing is doing. Verify before fitting.

Anyone with this link can view this part and its recorded candidate comparison.

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