- Bore d
- 3 mm
- Outside D
- 9 mm
- Width B
- 3 mm
- Dynamic C
- 0.572 kN
- Static C0
- 0.188 kN
- Mass
- 0.00085 kg
Manufacturer catalogue
118 PRODUCTS
EZO
Search EZO products by designation, product type and boundary dimensions. Technical values are organized for direct comparison.
Customer bearing search
Find a EZO bearing
Search by designation, category or exact boundary dimensions.
Product families
EZO bearing families
Start with an official product family, then refine by construction and technical attributes.
All bearing categories →- Bore d
- 5 mm
- Outside D
- 14 mm
- Width B
- 5 mm
- Dynamic C
- 1.33 kN
- Static C0
- 0.507 kN
- Mass
- 0.00309 kg
- Bore d
- 5 mm
- Outside D
- 14 mm
- Width B
- 5 mm
- Dynamic C
- 1.33 kN
- Static C0
- 0.507 kN
- Mass
- 0.00336 kg
- Bore d
- 6 mm
- Outside D
- 17 mm
- Width B
- 6 mm
- Dynamic C
- 2.26 kN
- Static C0
- 0.838 kN
- Mass
- 0.00543 kg
- Bore d
- 6 mm
- Outside D
- 17 mm
- Width B
- 6 mm
- Dynamic C
- 2.26 kN
- Static C0
- 0.838 kN
- Mass
- 0.00577 kg
- Bore d
- 7 mm
- Outside D
- 19 mm
- Width B
- 6 mm
- Dynamic C
- 2.34 kN
- Static C0
- 0.889 kN
- Mass
- 0.00676 kg
- Bore d
- 7 mm
- Outside D
- 19 mm
- Width B
- 6 mm
- Dynamic C
- 2.34 kN
- Static C0
- 0.889 kN
- Mass
- 0.00718 kg
- Bore d
- 8 mm
- Outside D
- 22 mm
- Width B
- 7 mm
- Dynamic C
- 3.3 kN
- Static C0
- 1.37 kN
- Mass
- 0.011 kg
- Bore d
- 8 mm
- Outside D
- 22 mm
- Width B
- 7 mm
- Dynamic C
- 3.3 kN
- Static C0
- 1.37 kN
- Mass
- 0.0117 kg
- Bore d
- 8 mm
- Outside D
- 22 mm
- Width B
- 7 mm
- Dynamic C
- 3.3 kN
- Static C0
- 1.37 kN
- Mass
- 0.0116 kg
- Bore d
- 9 mm
- Outside D
- 24 mm
- Width B
- 7 mm
- Dynamic C
- 3.35 kN
- Static C0
- 1.43 kN
- Mass
- 0.0133 kg
- Bore d
- 9 mm
- Outside D
- 24 mm
- Width B
- 7 mm
- Dynamic C
- 3.35 kN
- Static C0
- 1.43 kN
- Mass
- 0.0139 kg
- Bore d
- 3 mm
- Outside D
- 10 mm
- Width B
- 4 mm
- Dynamic C
- 0.538 kN
- Static C0
- 0.175 kN
- Mass
- 0.00147 kg
- Bore d
- 3 mm
- Outside D
- 10 mm
- Width B
- 4 mm
- Dynamic C
- 0.633 kN
- Static C0
- 0.218 kN
- Mass
- 0.00157 kg
- Bore d
- 4 mm
- Outside D
- 13 mm
- Width B
- 5 mm
- Dynamic C
- 1.3 kN
- Static C0
- 0.485 kN
- Mass
- 0.00288 kg
- Bore d
- 5 mm
- Outside D
- 16 mm
- Width B
- 5 mm
- Dynamic C
- 1.73 kN
- Static C0
- 0.67 kN
- Mass
- 0.0043 kg
- Bore d
- 5 mm
- Outside D
- 16 mm
- Width B
- 5 mm
- Dynamic C
- 1.73 kN
- Static C0
- 0.67 kN
- Mass
- 0.00452 kg
- Bore d
- 6 mm
- Outside D
- 19 mm
- Width B
- 6 mm
- Dynamic C
- 2.34 kN
- Static C0
- 0.889 kN
- Mass
- 0.00718 kg
- Bore d
- 7 mm
- Outside D
- 22 mm
- Width B
- 7 mm
- Dynamic C
- 3.3 kN
- Static C0
- 1.37 kN
- Mass
- 0.0116 kg
- Bore d
- 7 mm
- Outside D
- 22 mm
- Width B
- 7 mm
- Dynamic C
- 3.3 kN
- Static C0
- 1.37 kN
- Mass
- 0.0122 kg
- Bore d
- 8 mm
- Outside D
- 24 mm
- Width B
- 8 mm
- Dynamic C
- 3.33 kN
- Static C0
- 1.41 kN
- Mass
- 0.0165 kg
- Bore d
- 9 mm
- Outside D
- 26 mm
- Width B
- 8 mm
- Dynamic C
- 4.58 kN
- Static C0
- 1.97 kN
- Mass
- 0.0178 kg
- Bore d
- 3 mm
- Outside D
- 13 mm
- Width B
- 5 mm
- Dynamic C
- 1.3 kN
- Static C0
- 0.485 kN
- Mass
- 0.00294 kg
- Bore d
- 8 mm
- Outside D
- 28 mm
- Width B
- 9 mm
- Dynamic C
- 4.58 kN
- Static C0
- 1.97 kN
- Mass
- 0.0272 kg
Independent brand reference
Return to results ↑EZO bearings: identification, catalogue & comparison
EZO is the bearing brand of Kitanihon Seiki. This independent reference includes selected public miniature, inch-series, thin-section and flanged ball-bearing records relevant to bearing-identification queries. It is not a shop or a complete manufacturer catalogue.
What to identify first
Use the complete EZO marking and compare d, D, inner-ring width B and outer-ring width C. For flanged constructions, record the flange dimensions as well. A short base number alone can hide changes in width, closure and material.
118 records currently loaded here. This is BearingScope's coverage, not the manufacturer's entire catalogue. A missing result means a data gap in this website, not that the manufacturer has never made the product.
Find the correct catalogue record
Each loaded model has a source-specific parameter table and collection date. Printed metric and inch values are retained separately. These factual lookup records are not downloadable manufacturer PDF files or CAD models.
Use the designation field above for the full marking, or enter bore d, outside diameter D and width B in mm. Leave unknown fields blank. A size chart can find candidates; it cannot establish material, precision or assembly compatibility by itself.
Read the EZO designation in context
These are interpretation notes, not a universal suffix crosswalk. Preserve every unrecognised code for exact-model verification.
| Marking or field | Meaning and limits |
|---|---|
| R / FR | Inch-series radial ball bearing / its flanged form. RW and FRW designate extended inner rings, so check B and C individually. |
| MR / MF / ET / ER | Special metric, flanged special metric, metric extra-thin and inch extra-thin families respectively. Interpret the complete code in its family. |
| H / S | EZO identifies stainless construction using H in standard metric series, and S for MR, MF, ET and inch series. Do not transfer this rule to other brands. |
| ZZ / ZZS | Two steel shields: pressed-in for ZZ; snap-ring-retained for ZZS. They are different catalogue constructions. |
| 2RS / 2RU / TTS | Contact rubber / non-contact rubber / snap-ring-retained PTFE seals on both sides. Do not treat their torque, speed or protection as identical. |
| P0 / P6 / P5 / P4 and A1 / A3 / A5 / A7 | EZO uses P codes for JIS precision classes and A codes for ABEC classes. The exact purchased grade must be established; precision is not load capacity. |
| C0 (CN) and MC1–MC6 | Standard and miniature clearance systems are distinct. No clearance value is assigned from the base number alone. |
A dimension match is a comparison candidate, not an approved interchange
The model table separates dynamic and static radial ratings, grease and oil limiting speeds, reference mass, rolling-element geometry and mounting dimensions where the exact source supplies them. Missing clearance, cage, lubricant and ordered precision remain unknown. BearingScope does not infer vehicle or equipment fitment from these dimensions.
Compare EZO with another brand
- Start with the complete designation and supplied component or assembly.
- Compare d×D×B in the same units; for separable bearings include the correct component and assembled dimensions.
- Check closure, clearance, cage, precision, material and lubrication. A blank field remains unknown.
- Compare load and speed figures on the same basis, then check the application's mounting and operating requirements.
Equal boundary dimensions identify a candidate, not an approved replacement. BearingScope does not rank whole brands or certify fitment.
EZO bearing lookup questions
Is this the official EZO catalogue or a shop?
No. BearingScope is an independent lookup and comparison reference. It does not sell bearings, quote prices, certify authenticity or claim to contain the manufacturer's complete current range.
Can I search by inside and outside diameter?
Yes, where corresponding product data is loaded. Enter known dimensions in mm in the search controls above. Add width and family to narrow the result. Measure the loose bearing's boundary dimensions, not a housing's mounting-bolt spacing. Keep uncertain readings separate from exact measurements.
Does a catalogue number prove that the bearing is genuine?
No. A plausible marking or a matching database record does not authenticate a physical item. Retain the full marking, packaging and lot identification for the manufacturer's verification process; neither a photograph nor a country name alone settles authenticity.
Where was my EZO bearing made?
The site does not have a verified factory/lot register. Brand identity and catalogue dimensions cannot establish an individual bearing's manufacturing origin. Check that item's traceability documentation; the missing origin is not filled from another model.
Can I download every EZO PDF or CAD drawing here?
No. Public lookup records and explanatory guides are not a complete document library. A drawing must match the exact model and revision and be permitted for redistribution. Where no such file is provided, the document request remains a data gap.
What if the full suffix gives no result?
Check the lettering, separators and component identity first. You may use the base number to discover related records, but do not remove the suffix from the part you ultimately compare. Record the missing full designation through the site's data-feedback page.
Editorial reference reviewed 2026-10-01. Source basis: Kitanihon Seiki / EZO public exact-model specification pages, collected 2026-10-02; EZO Bearing Numbering System and Auxiliary Symbols; EZO Types and Characteristics of Cages, Shields and Seals; EZO Limiting Speed of Bearings. Original explanatory text; no catalogue prose, PDF or CAD is represented as a BearingScope manufacturer document.