NTN NU 328 ECJ

Cylindrical · Open

The seat — 140 MM × 300 MM × 62 MM

Bore

140 MM

Outside dia

300 MM

Width

62 MM

Type

Cylindrical

Seal

Open

Clearance

CN (Normal)

Precision

Dynamic C

780.0 kN

Static C0

830.0 kN

19 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 — 5 designations

Part number	Manufacturer	C	C0
NJ 328 ECJ	NTN	780.0 kN	830.0 kN
NJ 328 ECM	NTN	780.0 kN	830.0 kN
NU 328 ECM	NTN	780.0 kN	830.0 kN
NUP 328 ECJ	NTN	780.0 kN	830.0 kN
NUP 328 ECM	NTN	780.0 kN	830.0 kN

Check before substituting — 14 designations · top 12 shown

Part number	Manufacturer	C	Differs from this part
NU 328 ECJ/C3	NTN	780.0 kN	Clearance: C3 — this part: CN (Normal)
NU 328 ECM/C3	NTN	780.0 kN	Clearance: C3 — this part: CN (Normal)
NU 328 ECM/C4VA301	NTN	780.0 kN	Clearance: C4 — this part: CN (Normal)
QJ 328 N2MA	NTN	500.0 kN	Type: Angular — this part: Cylindrical
QJ 328 N2MA/C3	NTN	500.0 kN	Type: Angular — this part: Cylindrical Clearance: C3 — this part: CN (Normal)
7328 BCBM	NTN	302.0 kN	Type: Angular — this part: Cylindrical
7328 BGAM	NTN	302.0 kN	Type: Angular — this part: Cylindrical
6328/C3VL2071	NTN	265.0 kN	Type: Deep groove ball — this part: Cylindrical Clearance: C3 — this part: CN (Normal)
6328 M/C3VL2071	NTN	265.0 kN	Type: Deep groove ball — this part: Cylindrical Clearance: C3 — this part: CN (Normal)
6328	NTN	251.0 kN	Type: Deep groove ball — this part: Cylindrical
6328/C3	NTN	251.0 kN	Type: Deep groove ball — this part: Cylindrical Clearance: C3 — this part: CN (Normal)
6328/HC5C3S0VA970	NTN	251.0 kN	Type: Deep groove ball — this part: Cylindrical Clearance: C5 — this part: CN (Normal)

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.

BEARINGBRAIN.COM/PART/NU328ECJ/SUBSTITUTE