NTN BB1-0554

Deep groove ball · Open

The seat — 20 MM × 42 MM × 12 MM

Bore

20 MM

Outside dia

42 MM

Width

12 MM

Type

Deep groove ball

Seal

Open

Clearance

CN (Normal)

Precision

ABEC-1 (P0)

Dynamic C

9.4 kN

Static C0

5.0 kN

102 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 — 12 designations

Part number	Manufacturer	C	C0
6004-2RZ/LHT23	NTN	9.9 kN	5.0 kN
6004 JEM	NTN	9.9 kN	5.0 kN
6004 NR	NTN	9.9 kN	5.0 kN
6004 RSJEM	NTN	9.9 kN	5.0 kN
6004 ZJEM	NTN	9.9 kN	5.0 kN
PER.6004-2RLD	NTN	9.4 kN	5.0 kN
PER.6004-2RLDV2	NTN	9.4 kN	5.0 kN
PER.6004-DV2	NTN	9.4 kN	5.0 kN
6004	NTN	9.4 kN	4.8 kN
91004K	Timken	9.4 kN	4.8 kN
W 6004	NTN	8.1 kN	5.0 kN
6004/VA201	NTN	—	5.0 kN

Check before substituting — 90 designations · top 12 shown

Part number	Manufacturer	C	Differs from this part
6004-2RS2/C3GWP	NTN	9.9 kN	Clearance: C3 — this part: CN (Normal)
6004-2RSH/C3	NTN	9.9 kN	Clearance: C3 — this part: CN (Normal)
6004-2RSH/C3GJN	NTN	9.9 kN	Clearance: C3 — this part: CN (Normal)
6004-2RSH/C4GJN	NTN	9.9 kN	Seal: 2RS contact seal — this part: Open Clearance: C4 — this part: CN (Normal)
6004-2RSH/VA947	NTN	9.9 kN	Seal: 2RS contact seal — this part: Open
6004-2RSH/W64	NTN	9.9 kN	Seal: 2RS contact seal — this part: Open
6004-2RSHNR	NTN	9.9 kN	Seal: 2RS contact seal — this part: Open
6004-2RSL	NTN	9.9 kN	Seal: 2RS contact seal — this part: Open
6004-2RSL/C3	NTN	9.9 kN	Clearance: C3 — this part: CN (Normal)
6004-2RZTN9/C3VT162	NTN	9.9 kN	Clearance: C3 — this part: CN (Normal)
6004-2Z/C2ELHT23	NTN	9.9 kN	Seal: 2Z shield — this part: Open Clearance: C2 — this part: CN (Normal)
6004-2Z/C3	NTN	9.9 kN	Clearance: C3 — 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/BB1-0554/SUBSTITUTE