NTN NJ 04 EM

Cylindrical · Open

The seat — 20 MM × 47 MM × 14 MM

Bore

20 MM

Outside dia

47 MM

Width

14 MM

Type

Cylindrical

Seal

Open

Clearance

CN (Normal)

Precision

Dynamic C

15.5 kN

Static C0

10.7 kN

136 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 — 15 designations

Part number	Manufacturer	C	C0
N 204 ECP	NTN	28.5 kN	22.0 kN
NJ 204 ECML	NTN	28.5 kN	22.0 kN
NJ 204 ECP	NTN	28.5 kN	22.0 kN
NU 204 ECML	NTN	28.5 kN	22.0 kN
NU 204 ECP	NTN	28.5 kN	22.0 kN
NUP 204 ECP	NTN	28.5 kN	22.0 kN
NUP 204 ECPHA	NTN	28.5 kN	22.0 kN
NU204	KOYO (JTEKT)	16.8 kN	14.0 kN
NU204-E-XL-TVP2	FAG (Schaeffler)	16.8 kN	14.0 kN
NU204EMA	Timken	16.8 kN	14.0 kN
NU204ET	NSK	16.8 kN	14.0 kN
NU204ET2X	NTN	16.8 kN	14.0 kN
NJ 04.M1	FAG (Schaeffler)	16.1 kN	11.1 kN
NJ 04 ECP	NTN	16.0 kN	11.0 kN
NJ 04	Timken	15.8 kN	10.9 kN

Check before substituting — 121 designations · top 12 shown

Part number	Manufacturer	C	Differs from this part
NJ 204 ECP/C3	NTN	28.5 kN	Clearance: C3 — this part: CN (Normal)
NU 204 ECP/C3	NTN	28.5 kN	Clearance: C3 — this part: CN (Normal)
32004	NTN	26.7 kN	Type: Tapered — this part: Cylindrical Precision: P0 (Class4) — this part: P0
BSA 204 CGA	NTN	22.0 kN	Type: Angular — this part: Cylindrical
BSA 204 CGB	NTN	22.0 kN	Type: Angular — this part: Cylindrical
7204 ACCBM	NTN	16.0 kN	Type: Angular — this part: Cylindrical
6204 ETN9	NTN	15.6 kN	Type: Deep groove ball — this part: Cylindrical
7204 BECBJ	NTN	14.3 kN	Type: Angular — this part: Cylindrical
7204 BECBM	NTN	14.3 kN	Type: Angular — this part: Cylindrical
7204 BECBP	NTN	14.3 kN	Type: Angular — this part: Cylindrical
7204 BECBY	NTN	14.3 kN	Type: Angular — this part: Cylindrical
7204 BEGAP	NTN	14.3 kN	Type: Angular — 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.

BEARINGBRAIN.COM/PART/NJ04EM/SUBSTITUTE