SKF 3318DMA/VB188 double-row angular contact ball bearing. Double-row angular contact ball bearing (32xx-2Z, 33xx, 52xx / 53xx) taking heavy combined radial and axial load in both directions from a single position. Contact angle 30° or 45°. Standard shielded (2Z) or contact-sealed (2RS1) execution. Suitable for pump impeller shafts, gearbox output shafts, propeller-shaft thrust ends on smaller marine gearboxes.
| Type | Double-row angular contact ball bearing |
| Designation | SKF 3318DMA/VB188 |
| Bore d | 90 mm |
| HS code | 8482.10 |
| Bore diameter | 90 mm |
| Outside diameter | 190 mm |
| Width | 73 mm |
| Contact angle | 45 ° |
| Basic dynamic load rating | 225 kN |
| Basic static load rating | 250 kN |
| Reference speed | 3800 r/min |
| Limiting speed | 3200 r/min |
| Contact type | Normal contact (two-point contact) |
| Number of rows | 2 |
| Locating feature, bearing outer ring | Without |
| Ring type | Two-piece inner ring and one-piece outer ring |
| Cage | Machined brass |
| 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 |
| Sealing | Without |
| Lubricant | None |
| Relubrication feature | Without |
| Indicative carbon footprint for new product | 37.7 kg CO2e |
| Product net weight | 10.2 kg |
| eClass code | 23-05-08-03 |
| UNSPSC code | 31171531 |
| Material | As declared by SKF designation suffix |
| Temperature range | Per SKF product data |
| Primary standard | SKF designation convention (see description for governing ISO / DIN) |
| MOQ | 1 |
Interchange with peer OEM equivalents on identical boundary plan and execution — confirm cage, clearance, sealing and precision-class suffix before substitution.