Open Linear ball bearing KB-3-O ISO series 3 premium with shields for shaft Ø 30mm vs Self-aligning linear bearing KB-3-A ISO series 3 premium stainless with seals for shaft Ø 50mm
Open Linear ball bearing KB-3-O ISO series 3 premium with shields for shaft Ø 30mm and Self-aligning linear bearing KB-3-A ISO series 3 premium stainless with seals for shaft Ø 50mm are compared below on the data published by their sellers — price converted to euros, stock, and every specification either seller discloses. On price, Open Linear ball bearing KB-3-O ISO series 3 premium with shields for shaft Ø 30mm is €95.31 cheaper ($170.35).
| Criterion |  Open Linear ball bearing KB-3-O ISO series 3 premium with shields for shaft Ø 30mm |  Self-aligning linear bearing KB-3-A ISO series 3 premium stainless with seals for shaft Ø 50mm |
|---|---|---|
| Price | $170.35cheapest | $280.35 |
| Seller | MÄDLER | MÄDLER |
| Availability | In stock | Backorder |
| Rating | — | — |
| Weight | 114 g | 440 g |
| Angle | 50 ° | — |
| For shaft diameter | 30 mm | 50 mm |
| Length | 68 mm | 100 mm |
| Load rating dynamic | 5 600 N | 11 200 N |
| Material | Plastic / Steel | Plastic / Stainless steel |
| Outer diameter | 47 mm | 75 mm |
| Static load rating | 5 700 N | 6 950 N |
| Surface | Blank | Blank |
| View at seller ↗ | View at seller ↗ |
Specifications are extracted automatically from seller data — an empty cell means the seller does not publish that value, not that the product lacks it.
Robotitem does not test products. This comparison reports seller-published data only, and ranking never takes affiliate commission into account.