Cross-brand designation analysis
COMPARE / VERIFY
Same-model Comparison
Explore products that share a base designation across loaded brands, with dimensional agreement and data gaps shown clearly.
Cross Reference centre · Interchange verification checklist · Understand suffix differences
You entered 688A. This table explores the base group 688; it does not preserve or approve every requested suffix. Search your complete marking first →
Automatic candidate selection
One base designation across loaded brands
Exact designations rank first. Dimensions, suffixes and other technical differences remain visible so the result is not mistaken for an interchangeability declaration.
Dimensions verified
“688” across 4 loaded brands
At least two brands share the same bore, outside diameter and width. Use Custom Compare when you want to choose exact suffix variants yourself.
Technical comparison
Choose exact variants instead →Brand differences at a glance
| Parameter | FAG688>N8 × 16 × 4 mm | NSK688A8 × 16 × 4 mm | KOYO6888 × 16 × 4 mm | EZO6888 × 16 × 4 mm |
|---|---|---|---|---|
| Comparable specifications | ||||
| Brand | FAG | NSK | KOYO | EZO |
| Designation | 688>N | 688A | 688 | 688 |
| Product family | — | Single row deep groove ball bearings | Extra-small, miniature ball bearings / Standard type / Open | Miniature Ball Bearing |
| Detailed type | Deep groove ball bearings | Deep groove ball bearings | Deep groove ball bearings | Deep groove ball bearings |
| Series | 688 | — | — | — |
| Bore diameterd | 8 mm | 8 mm | 8 mm | 8 mm |
| Outside diameterD | 16 mm | 16 mm | 16 mm | 16 mm |
| WidthB | 4 mm | 4 mm | 4 mm | 4 mm |
| Basic dynamic load ratingC | 1.71 kN | 1.77 kN | 1.55 kN | 1.26 kN |
| Basic static load ratingC0 | 0.71 kN | 0.71 kN | 0.59 kN | 0.59 kN |
| Fatigue load limitPu | 0.044 kN | — | 0.02 kN | — |
| Reference speednref | 30000 r/min | — | — | — |
| Limiting speednG | 60000 r/min | — | 42000 r/min | — |
| Mass≈m | 0.0038 kg | 0.00312 kg | 0.003 kg | 0.00316 kg |
| Precision class | PN — Normal (ISO 492:2023) | — | — | — |
| Internal clearance | CN (Group N) — Normal internal clearance | — | — | — |
| Sealing | Without — Not sealed | Open | Open | Open (no closure suffix in this catalogue marking) |
| Cage | JN — Steel sheet metal | — | — | — |
| Bearing material | — | — | — | High-carbon chromium bearing steel |
| Lubricant | Without — Bearing not greased | — | — | — |
| Minimum operating temperatureTmin | -30 °C | — | — | — |
| Maximum operating temperatureTmax | 120 °C | — | — | — |
| Boundary dimensions | ||||
| Bearing width (open)B | — | 4 mm | — | — |
| Outer diameterD | — | — | — | 16 mm |
| Minimum bearing chamferr min. | — | 0.2 mm | — | — |
| Outer diameterD | — | — | — | 0.6299 inch |
| Inner ring widthB | — | — | — | 4 mm |
| Inner ring widthB | — | — | — | 0.1575 inch |
| Outer ring widthC | — | — | — | 4 mm |
| Outer ring widthC | — | — | — | 0.1575 inch |
| Inner ring chamfer dimensionr si min | — | — | — | 0.2 mm |
| Inner ring chamfer dimensionr si min | — | — | — | 0.0079 inch |
| Outer ring chamfer dimensionr se min | — | — | — | 0.2 mm |
| Outer ring chamfer dimensionr se min | — | — | — | 0.0079 inch |
| Calculation factors | ||||
| Calculation factorf0 | 13.9 | — | — | — |
| Capabilities & suitability | ||||
| Radial load capacity | Yes | — | — | — |
| Axial load capacity in one direction | Yes | — | — | — |
| Axial load capacity in both directions | Yes | — | — | — |
| Suitable for grease lubrication | Yes | — | — | — |
| Suitable for oil lubrication | Yes | — | — | — |
| Unsealed design | Yes | — | — | — |
| Classification | ||||
| Official Category Path | — | — | Deep groove ball bearings - Extra-small, miniature ball bearings - Standard type - Open | — |
| Official Classification 1 | — | — | Deep groove ball bearings / Extra-small, miniature ball bearings / Standard type / Open | — |
| Construction | ||||
| Catalogue closure construction | — | Open | — | — |
| Closure interpretation | — | — | — | Open (no closure suffix in this catalogue marking) |
| Material interpretation | — | — | — | High-carbon chromium bearing steel |
| Dimensions | ||||
| Minimum chamfer dimensionrmin | 0.2 mm | — | — | — |
| Minimum chamfer dimensionrmin | 0.008 in | — | — | — |
| Shoulder diameter outer ringD1 | 13.8 mm | — | — | — |
| Shoulder diameter outer ringD1 | 0.543 in | — | — | — |
| Shoulder diameter inner ringd1 | 10.2 mm | — | — | — |
| Shoulder diameter inner ringd1 | 0.402 in | — | — | — |
| Load ratings | ||||
| Basic dynamic radial load ratingCr | — | 1770 N | — | — |
| Basic static radial load ratingC0r | — | 710 N | — | — |
| Lubrication-qualified speed | ||||
| Limiting speed with grease | — | 36000 r/min | — | — |
| Limiting speed with oil (open) | — | 43000 r/min | — | — |
| Catalogue limiting speed (grease) | — | — | — | 40000 r/min |
| Catalogue limiting speed (oil) | — | — | — | 47000 r/min |
| Main Dimensions & Performance Data | ||||
| Basic dynamic load rating, radialCr | 1,710 N | — | — | — |
| Basic dynamic load rating, radialCr | 384.442 lbf | — | — | — |
| Basic static load rating, radialC0r | 710 N | — | — | — |
| Basic static load rating, radialC0r | 159.622 lbf | — | — | — |
| Fatigue load limit, radialCur | 44 N | — | — | — |
| Fatigue load limit, radialCur | 9.892 lbf | — | — | — |
| Manufacturer Identity | ||||
| Schaeffler Product Code | 2400522 | — | — | — |
| Official Class Key | — | — | 010-020-010 | — |
| Base Type | 688 | — | — | — |
| Gpsd Group | S02 | — | — | — |
| Product Line Id | 14 | — | — | — |
| SAP material number | 0841183930000 | — | — | — |
| Base product | 2305080101 | — | — | — |
| Mounting dimensions | ||||
| Minimum shaft shoulder diameter (open)da min. | — | 9.6 mm | — | — |
| Maximum adjacent fillet radiusra max. | — | 0.2 mm | — | — |
| Maximum housing shoulder diameter (open)Da max. | — | 14.4 mm | — | — |
| Adjacent mounting dimension (da min)da min | — | — | — | 13.6 mm |
| Adjacent mounting dimension (da min)da min | — | — | — | 0.5354 inch |
| Adjacent mounting dimension (da max)da max | — | — | — | 14.4 mm |
| Adjacent mounting dimension (da max)da max | — | — | — | 0.5669 inch |
| Adjacent mounting dimension (r asi max)r asi max | — | — | — | 0.2 mm |
| Adjacent mounting dimension (r asi max)r asi max | — | — | — | 0.0079 inch |
| Adjacent mounting dimension (r ase max)r ase max | — | — | — | 0.2 mm |
| Adjacent mounting dimension (r ase max)r ase max | — | — | — | 0.0079 inch |
| Minimum diameter shaft shoulderda min | 9.4 mm | — | — | — |
| Minimum diameter shaft shoulderda min | 0.37 in | — | — | — |
| Maximum diameter of housing shoulderDa max | 14.6 mm | — | — | — |
| Maximum diameter of housing shoulderDa max | 0.575 in | — | — | — |
| Maximum fillet radiusra max | 0.2 mm | — | — | — |
| Maximum fillet radiusra max | 0.008 in | — | — | — |
| Product characteristics | ||||
| Version code>N | Not marked on bearing | — | — | — |
| Type of SealWithout | Not sealed | — | — | — |
| Tolerance classPN | Normal (ISO 492:2023) | — | — | — |
| Dimensional / heat stabilizationSN | Rings dimensional stabilized up to 120° | — | — | — |
| Radial internal clearanceCN (Group N) | Normal internal clearance | — | — | — |
| Bore typeZ | Cylindrical | — | — | — |
| Product Identity | ||||
| Construction | Deep groove ball bearing 68.., single row, steel sheet metal cage | — | — | — |
| Short Description | Deep groove ball bearing | — | — | — |
| Reference mass | ||||
| Approximate catalogue mass (open) | — | 3.12 g | — | — |
| Reference mass | — | — | — | 3.16 g |
| Rolling elements | ||||
| Ball diameterDw | — | — | — | 2 mm |
| Ball quantityZ | — | — | — | 10 |
| Technical Data | ||||
| d | — | — | 16 mm | — |
| B | — | — | 4 mm | — |
| Bore Diameter (D) | 8 mm | — | — | — |
| R(Min.) | — | — | 0.2 mm | — |
| Outside Diameter (D) | 16 mm | — | — | — |
| Basic Load Ratings : Cr | — | — | 1.55 kN | — |
| Width (B) | 4 mm | — | — | — |
| Basic Load Ratings : C0R | — | — | 0.59 kN | — |
| Basic Dynamic Load Rating, Radial (Cr) | 1,710 N | — | — | — |
| Fatigue Load Limit : Cu | — | — | 0.020 kN | — |
| Basic Static Load Rating, Radial (C0R) | 710 N | — | — | — |
| Factor : F0 | — | — | 14.0 | — |
| Operating Temperature Min. (Tmin) | -30 °C | — | — | — |
| Limiting Speeds(Grease Lub.) | — | — | 42000 min-1 | — |
| Limiting Speed (Ng) | 60,000 1/min | — | — | — |
| Limiting Speeds(Oil Lub.) | — | — | 50000 min-1 | — |
| Operating Temperature Max. (Tmax) | 120 °C | — | — | — |
| Da(Min.) | — | — | 9.6 mm | — |
| Reference Speed (Nϑr) | 30,000 1/min | — | — | — |
| Da(Max.) | — | — | 14.4 mm | — |
| Calculation Factor (F0) | 13.9 | — | — | — |
| Ra(Max.) | — | — | 0.2 mm | — |
| Fatigue Load Limit, Radial (Cur) | 44 N | — | — | — |
| Mass(Refer.) | — | — | 3.2 g | — |
| Minimum Diameter Shaft Shoulder (Da Min) | 9.4 mm | — | — | — |
| Shoulder Diameter Inner Ring (D1) | 10.2 mm | — | — | — |
| Maximum Diameter Of Housing Shoulder (Da Max) | 14.6 mm | — | — | — |
| Minimum Chamfer Dimension (Rmin) | 0.2 mm | — | — | — |
| Maximum Fillet Radius (Ra Max) | 0.2 mm | — | — | — |
| Shoulder Diameter Outer Ring (D1) | 13.8 mm | — | — | — |
| Temperature range | ||||
| Operating temperature min.Tmin | -30 °C | — | — | — |
| Operating temperature min.Tmin | -22 °F | — | — | — |
| Operating temperature max.Tmax | 120 °C | — | — | — |
| Operating temperature max.Tmax | 248 °F | — | — | — |
Automatic matching is a search aid, not an interchangeability declaration. Confirm the full suffix, tolerances, internal design and application limits before substitution.