- Bore d
- 10 mm
- Outside D
- 26 mm
- Width B
- 8 mm
- Dynamic C
- 5.75 kN
- Static C0
- 1.97 kN
- Mass
- 0.019 kg
Manufacturer catalogue
427 PRODUCTS
NACHI
Search NACHI products by designation, product type and boundary dimensions. Technical values are organized for direct comparison.
Customer bearing search
Find a NACHI bearing
Search by designation, category or exact boundary dimensions.
Product families
NACHI bearing families
Start with an official product family, then refine by construction and technical attributes.
All bearing categories →- Bore d
- 10 mm
- Outside D
- 26 mm
- Width B
- 8 mm
- Dynamic C
- 5.75 kN
- Static C0
- 1.97 kN
- Bore d
- 10 mm
- Outside D
- 26 mm
- Width B
- 8 mm
- Dynamic C
- 5.75 kN
- Static C0
- 1.97 kN
- Bore d
- 10 mm
- Outside D
- 26 mm
- Width B
- 8 mm
- Dynamic C
- 5.75 kN
- Static C0
- 1.97 kN
- Bore d
- 10 mm
- Outside D
- 26 mm
- Width B
- 8 mm
- Dynamic C
- 5.75 kN
- Static C0
- 1.97 kN
- Bore d
- 10 mm
- Outside D
- 26 mm
- Width B
- 8 mm
- Dynamic C
- 5.75 kN
- Static C0
- 1.97 kN
- Bore d
- 10 mm
- Outside D
- 26 mm
- Width B
- 8 mm
- Dynamic C
- 5.75 kN
- Static C0
- 1.97 kN
- Bore d
- 12 mm
- Outside D
- 28 mm
- Width B
- 8 mm
- Dynamic C
- 6.45 kN
- Static C0
- 2.39 kN
- Mass
- 0.023 kg
- Bore d
- 12 mm
- Outside D
- 28 mm
- Width B
- 8 mm
- Dynamic C
- 6.45 kN
- Static C0
- 2.39 kN
- Bore d
- 12 mm
- Outside D
- 28 mm
- Width B
- 8 mm
- Dynamic C
- 6.45 kN
- Static C0
- 2.39 kN
- Bore d
- 12 mm
- Outside D
- 28 mm
- Width B
- 8 mm
- Dynamic C
- 6.45 kN
- Static C0
- 2.39 kN
- Bore d
- 12 mm
- Outside D
- 28 mm
- Width B
- 8 mm
- Dynamic C
- 6.45 kN
- Static C0
- 2.39 kN
- Bore d
- 12 mm
- Outside D
- 28 mm
- Width B
- 8 mm
- Dynamic C
- 6.45 kN
- Static C0
- 2.39 kN
- Bore d
- 12 mm
- Outside D
- 28 mm
- Width B
- 8 mm
- Dynamic C
- 6.45 kN
- Static C0
- 2.39 kN
- Bore d
- 15 mm
- Outside D
- 32 mm
- Width B
- 9 mm
- Dynamic C
- 7.05 kN
- Static C0
- 2.84 kN
- Mass
- 0.032 kg
- Bore d
- 15 mm
- Outside D
- 32 mm
- Width B
- 9 mm
- Dynamic C
- 7.05 kN
- Static C0
- 2.84 kN
- Bore d
- 15 mm
- Outside D
- 32 mm
- Width B
- 9 mm
- Dynamic C
- 7.05 kN
- Static C0
- 2.84 kN
- Bore d
- 15 mm
- Outside D
- 32 mm
- Width B
- 9 mm
- Dynamic C
- 7.05 kN
- Static C0
- 2.84 kN
- Bore d
- 15 mm
- Outside D
- 32 mm
- Width B
- 9 mm
- Dynamic C
- 7.05 kN
- Static C0
- 2.84 kN
- Bore d
- 15 mm
- Outside D
- 32 mm
- Width B
- 9 mm
- Dynamic C
- 7.05 kN
- Static C0
- 2.84 kN
- Bore d
- 15 mm
- Outside D
- 32 mm
- Width B
- 9 mm
- Dynamic C
- 7.05 kN
- Static C0
- 2.84 kN
- Bore d
- 17 mm
- Outside D
- 35 mm
- Width B
- 10 mm
- Dynamic C
- 7.55 kN
- Static C0
- 3.25 kN
- Mass
- 0.039 kg
- Bore d
- 17 mm
- Outside D
- 35 mm
- Width B
- 10 mm
- Dynamic C
- 7.55 kN
- Static C0
- 3.25 kN
- Bore d
- 17 mm
- Outside D
- 35 mm
- Width B
- 10 mm
- Dynamic C
- 7.55 kN
- Static C0
- 3.25 kN
Independent brand reference
Return to results ↑NACHI bearings: identification, catalogue & comparison
NACHI bearings are manufactured by NACHI-FUJIKOSHI. Its bearing range covers radial ball and roller bearings, thrust designs, bearing units and application-specific products. The brand's scope includes ordinary rolling bearings as well as precision and machine-tool designs.
NACHI bearing types & model examples
Start with the bearing's construction, not just its diameter or brand. These source-backed examples connect a bearing type to actual NACHI designations and recorded dimensions. They are lookup starting points, not a recommendation for an unspecified machine or a complete current catalogue.
NACHI Ball bearings3 model examples
Ball bearings are a group of constructions, not one interchangeable design. Deep-groove, angular-contact and self-aligning bearings serve different arrangements; the exact type remains part of the lookup.
Before selecting a model
- Identify whether the arrangement uses deep-groove, angular-contact or self-aligning construction.
- Check the full marking, dimensions, closure and internal clearance on the individual record.
- Use the row count and mounting arrangement from the exact model; do not infer them from the word ball.
6205
Deep groove ball bearing
- Bore diameter (d)
- 25 mm
- Outside diameter (D)
- 52 mm
- Bearing width (B)
- 15 mm
Source basis: NACHI published catalogue record. Captured 2026-10-02.
6305
Deep groove ball bearing
- Bore diameter (d)
- 25 mm
- Outside diameter (D)
- 62 mm
- Bearing width (B)
- 17 mm
Source basis: NACHI published catalogue record. Captured 2026-10-02.
6005
Deep groove ball bearing
- Bore diameter (d)
- 25 mm
- Outside diameter (D)
- 47 mm
- Bearing width (B)
- 12 mm
Source basis: NACHI published catalogue record. Captured 2026-10-02.
Comparison boundary: The group name alone does not determine load direction, speed, accuracy or installation requirements. Preserve the full designation and suffix. Equal dimensions alone do not establish interchangeability; blank values remain unknown.
Explore bearing constructions →Dimensions retain their source labels: B is not automatically the same as assembly width T, ring width C or section height H. A component with no inner ring may specify Fw rather than a shaft bore d. These examples do not supply installation fits, approval for a machine, or a promised load/speed capability.
What to identify first
Keep the family and the full designation together. For precision angular-contact bearings, arrangement, contact angle and preload information can be just as important as the boundary dimensions.
427 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
Select the NACHI catalogue for the specific family. The Precision Rolling Bearings nomenclature contains arrangement, cage, seal, preload and tolerance fields that a general ball-bearing size table cannot replace. Keep each documented code rather than reducing a precision assembly to its base number.
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 NACHI 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 |
|---|---|
| P4 / P5 | In the cited NACHI precision catalogue these identify the stated JIS tolerance classes; they are not radial-clearance groups. |
| DB / DF / DT | In that angular-contact nomenclature these denote back-to-back, face-to-face and tandem arrangements. |
| -2NKE | The cited precision-bearing system uses -2NKE for two non-contact seals. Do not transfer that meaning blindly to a different family. |
| SH6- | In that catalogue SH6- identifies steel rings with ceramic balls; an omitted material symbol describes the documented all-steel construction. |
NACHI units and housings
NACHI describes bearing units as combinations of a bearing and a housing. A housing query, an insert query and a complete-unit query therefore require different records. This site does not infer a complete mounting assembly from a matching insert bore.
Compare NACHI 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.
NACHI bearing lookup questions
Is this the official NACHI 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 NACHI 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 NACHI 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: NACHI-FUJIKOSHI — Bearings product overview; NACHI Precision Rolling Bearings, B1031E-7 — nomenclature; NACHI-FUJIKOSHI — Bearing Units. Original explanatory text; no catalogue prose, PDF or CAD is represented as a BearingScope manufacturer document.