NTN 2306 E-2RS1TN9

Self-aligning ball · 2RS contact seal

The seat — 30 MM × 72 MM × 27 MM

Bore

30 MM

Outside dia

72 MM

Width

27 MM

Type

Self-aligning ball

Seal

2RS contact seal

Clearance

CN (Normal)

Precision

Dynamic C

22.5 kN

Static C0

6.8 kN

21 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 — 1 designation

Part number	Manufacturer	C	C0
2306 E-2RS1KTN9	NTN	22.5 kN	6.8 kN

Check before substituting — 20 designations · top 12 shown

Part number	Manufacturer	C	Differs from this part
NJ 2306 ECML	NTN	83.0 kN	Type: Cylindrical — this part: Self-aligning ball Seal: Open — this part: 2RS contact seal
NJ 2306 ECML/C3	NTN	83.0 kN	Type: Cylindrical — this part: Self-aligning ball Seal: Open — this part: 2RS contact seal Clearance: C3 — this part: CN (Normal)
NJ 2306 ECP	NTN	83.0 kN	Type: Cylindrical — this part: Self-aligning ball Seal: Open — this part: 2RS contact seal
NJ 2306 ECP/C3	NTN	83.0 kN	Type: Cylindrical — this part: Self-aligning ball Seal: Open — this part: 2RS contact seal Clearance: C3 — this part: CN (Normal)
NU 2306 ECP	NTN	83.0 kN	Type: Cylindrical — this part: Self-aligning ball Seal: Open — this part: 2RS contact seal
NU 2306 ECP/C3	NTN	83.0 kN	Type: Cylindrical — this part: Self-aligning ball Seal: Open — this part: 2RS contact seal Clearance: C3 — this part: CN (Normal)
NU 2306 ECPH	NTN	83.0 kN	Type: Cylindrical — this part: Self-aligning ball Seal: Open — this part: 2RS contact seal
NUP 2306 ECML	NTN	83.0 kN	Type: Cylindrical — this part: Self-aligning ball Seal: Open — this part: 2RS contact seal
NUP 2306 ECP	NTN	83.0 kN	Type: Cylindrical — this part: Self-aligning ball Seal: Open — this part: 2RS contact seal
22306 E1	FAG (Schaeffler)	72.2 kN	Type: Spherical — this part: Self-aligning ball Seal: Open — this part: 2RS contact seal
22306 E	NTN	71.5 kN	Type: Spherical — this part: Self-aligning ball Seal: Open — this part: 2RS contact seal
22306	NTN	69.4 kN	Type: Spherical — this part: Self-aligning ball Seal: Open — this part: 2RS contact seal

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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