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 3318-A-C3. This table explores the base group 3318; it does not preserve or approve every requested suffix. Search your complete marking first →
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.
“3318” across 2 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.
Brand differences at a glance
| Parameter | SKF3318 A90 × 190 × 73 mm | KOYO331890 × 190 × 73 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | SKF | KOYO |
| Designation | 3318 A | 3318 |
| Product family | Angular contact ball bearings | Double-row / Open |
| Detailed type | Double row angular contact ball bearing | Angular contact ball bearings |
| Bore diameterd | 90 mm | 90 mm |
| Outside diameterD | 190 mm | 190 mm |
| WidthB | 73 mm | 73 mm |
| Basic dynamic load ratingC | 208 kN | 256 kN |
| Basic static load ratingC0 | 180 kN | 242 kN |
| Fatigue load limitPu | 6.4 kN | 10.6 kN |
| Reference speednref | 3800 r/min | — |
| Limiting speednG | 3400 r/min | 2100 r/min |
| Mass≈m | 8.54 kg | 9.23 kg |
| Sealing | Without | Open |
| Cage | Sheet metal | — |
| Bearing material | Bearing steel | — |
| Lubricant | None | — |
| Classification | ||
| Official Category Path | — | Angular contact ball bearings - Double-row - Open |
| Official Classification 1 | — | Angular contact ball bearings / Double-row / Open |
| Dimensions | ||
| Contact angle | 30.0 ° | — |
| Engineering — Abutment dimensions | ||
| Abutment diameter shaftd a | min. 104 mm | — |
| Abutment diameter housingD a | max. 176 mm | — |
| Fillet radiusr a | max. 2.5 mm | — |
| Engineering — Calculation data | ||
| SKF performance class | SKF Explorer | — |
| Calculation factork r | 0.07 | — |
| Limiting valuee | 0.8 | — |
| Calculation factorX | 0.63 | — |
| Calculation factorY 0 | 0.66 | — |
| Calculation factorY 1 | 0.78 | — |
| Calculation factorY 2 | 1.2 | — |
| Engineering — Dimensions | ||
| Shoulder diameter inner ringd 1 | ≈ 123.85 mm | — |
| Shoulder diameter outer ringD 1 | ≈ 159.83 mm | — |
| Chamfer dimension inner ringr 1,2 | min. 3 mm | — |
| Distance pressure point(s)a | 112 mm | — |
| Logistics | ||
| Product net weight | 8.54 kg | — |
| eClass code | 23-05-08-03 | — |
| UNSPSC code | 31171531 | — |
| Manufacturer Identity | ||
| Official Class Key | — | 020-030-000 |
| Product identity | ||
| Official product category | Angular contact ball bearings | — |
| Official taxonomy path | /products/rolling-bearings/ball-bearings/angular-contact-ball-bearings/double-row-angular-contact-ball-bearings | — |
| Structure group ID | BA2_001 | — |
| Available from SKF | Yes | — |
| Remanufacturable | No | — |
| Properties | ||
| Contact type | Normal contact (two-point contact) | — |
| Number of rows | 2 | — |
| Locating feature, bearing outer ring | Without | — |
| Ring type | One-piece inner and outer rings | — |
| Arrangement of contact angle (double-row bearing) | Back-to-back (O) | — |
| Matched arrangement | No | — |
| Universal matching bearing | No | — |
| Axial internal clearance | CN | — |
| Material, bearing | Bearing steel | — |
| Coating | Without | — |
| Relubrication feature | Without | — |
| Indicative carbon footprint for new product | 31.6 kg CO 2 e | — |
| Technical Data | ||
| d | — | 190 mm |
| B | — | 73 mm |
| R(Min.) | — | 3 mm |
| Basic Load Ratings : Cr | — | 256 kN |
| Basic Load Ratings : C0R | — | 242 kN |
| Fatigue Load Limit : Cu | — | 10.6 kN |
| Limiting Speeds(Grease Lub.) | — | 2100 min-1 |
| Limiting Speeds(Oil Lub.) | — | 2800 min-1 |
| Load Center Spread : A | — | 125.5 mm |
| Da(Min.) | — | 104 mm |
| Da(Max.) | — | 176 mm |
| Ra(Max.) | — | 2.5 mm |
| Mass(Refer.) | — | 9.23 kg |
Automatic matching is a search aid, not an interchangeability declaration. Confirm the full suffix, tolerances, internal design and application limits before substitution.