Linear ball bearing KB-3 ISO series 3 premium with shields for shaft Ø 20mm vs Linear bearing unit KG-3-K ISO series 3 with self-aligning linear ball bearing with seals for shaft Ø 40mm
Linear ball bearing KB-3 ISO series 3 premium with shields for shaft Ø 20mm and Linear bearing unit KG-3-K ISO series 3 with self-aligning linear ball bearing with seals for shaft Ø 40mm are compared below on the data published by their sellers — price converted to euros, stock, and every specification either seller discloses. On price, Linear ball bearing KB-3 ISO series 3 premium with shields for shaft Ø 20mm is €46.30 cheaper ($88.58).
| Criterion |  Linear ball bearing KB-3 ISO series 3 premium with shields for shaft Ø 20mm |  Linear bearing unit KG-3-K ISO series 3 with self-aligning linear ball bearing with seals for shaft Ø 40mm |
|---|---|---|
| Price | $88.58cheapest | $142.02 |
| Seller | MÄDLER | MÄDLER |
| Availability | In stock | Backorder |
| Rating | — | — |
| Weight | 56 g | 1.28 kg |
| For shaft diameter | 20 mm | 40 mm |
| Height | — | 85 mm |
| Length | 45 mm | 80 mm |
| Load rating dynamic | 3 250 N | 6 590 N |
| Material | Plastic / Steel | Aluminum / Plastic |
| No of ball rows | 6 | — |
| Outer diameter | 32 mm | — |
| Static load rating | 2 650 N | 8 230 N |
| Suitable snap ring din471 | 617 432 00 | — |
| Surface | Blank | Blank |
| Width | — | 108 mm |
| 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.