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Catalogue substitution sheet
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NTN NU 321 ECJ/C3

Cylindrical · Open

The seat — 105 MM × 225 MM × 49 MM

Bore
105 MM
Outside dia
225 MM
Width
49 MM
Type
Cylindrical
Seal
Open
Clearance
C3
Precision
P0
Dynamic C
500.0 kN
Static C0
500.0 kN

14 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 — 14 designations · top 12 shown

Part numberManufacturerCDiffers from this part
N 321 ECPNTN500.0 kN
Clearance: CN (Normal) — this part: C3
NJ 321 ECJNTN500.0 kN
Clearance: CN (Normal) — this part: C3
NJ 321 ECPNTN500.0 kN
Clearance: CN (Normal) — this part: C3
NU 321 ECJNTN500.0 kN
Clearance: CN (Normal) — this part: C3
NU 321 ECMLNTN500.0 kN
Clearance: CN (Normal) — this part: C3
NU 321 ECPNTN500.0 kN
Clearance: CN (Normal) — this part: C3
7321 BECBMNTN216.0 kN
Type: Angular — this part: Cylindrical
Clearance: CN (Normal) — this part: C3
7321 BECBPNTN216.0 kN
Type: Angular — this part: Cylindrical
Clearance: CN (Normal) — this part: C3
7321 BEGAMNTN216.0 kN
Type: Angular — this part: Cylindrical
Clearance: CN (Normal) — this part: C3
7321 BEPNTN203.0 kN
Type: Angular — this part: Cylindrical
Clearance: CN (Normal) — this part: C3
6321 M/C3VL0241NTN195.0 kN
Type: Deep groove ball — this part: Cylindrical
6321NTN182.0 kN
Type: Deep groove ball — this part: Cylindrical
Clearance: CN (Normal) — this part: C3
What this sheet is — and what the catalogue did not say

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

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