Sprocket KRS with hub pitch 4mm 12 teeth material steel and Double-strand sprocket ZRG with hub 08 B-2 1/2×5/16″ 21 teeth material steel teeth induction hardened are compared below on the data published by their sellers — price converted to euros, stock, and every specification either seller discloses. On price, Sprocket KRS with hub pitch 4mm 12 teeth material steel is €12.06 cheaper ($14.30).
| Criterion | Sprocket KRS with hub pitch 4mm 12 teeth material steel | Double-strand sprocket ZRG with hub 08 B-2 1/2×5/16″ 21 teeth material steel teeth induction hardened |
|---|---|---|
| Price | $14.30cheapest | $28.22 |
| Seller | MÄDLER | MÄDLER |
| Availability | In stock | In stock |
| Rating | — | — |
| Weight | 8 g | 1.28 kg |
| Bore | 5 mm | 16 mm |
| Din iso no | 4 mm | 08 B-2 |
| Hardened | No | Yes |
| Hub | One sided | One sided |
| Hub diameter | 10 mm | 70 mm |
| Material | Low-carbon steel | Steel (1045) |
| No of teeth | 12 | 21 |
| Number of strands | 1 | 2 |
| Outer diameter | 16.9 mm | 89.7 mm |
| Pitch circle diameter | 15.45 mm | 85.22 mm |
| Surface | Blank | Blank |
| Total length | 11 mm | 40 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.