Sprocket KRS with hub pitch 4mm 21 teeth material steel and Sprocket KRF with hub 08 B-1 21 teeth material steel bore 22H7 keyway DIN 6885/1 2 set screw threads 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 21 teeth material steel is €12.16 cheaper ($31.18).
| Criterion | Sprocket KRS with hub pitch 4mm 21 teeth material steel | Sprocket KRF with hub 08 B-1 21 teeth material steel bore 22H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened |
|---|---|---|
| Price | $31.18cheapest | $45.21 |
| Seller | MÄDLER | MÄDLER |
| Availability | In stock | In stock |
| Rating | — | — |
| Weight | 28 g | 786 g |
| Bore | 8 mm | — |
| Bore h7 | — | 22 mm |
| Depth of keyway | — | 2.8 mm |
| Din iso no | 4 mm | 08 B-1 |
| Hardened | No | Yes |
| Hub | One sided | One sided |
| Hub diameter | 20 mm | 68 mm |
| Keyway width | — | 6 mm |
| Material | Low-carbon steel | Steel (1045) |
| No of teeth | 21 | 21 |
| Number of strands | 1 | 1 |
| Outer diameter | 28.5 mm | 89.7 mm |
| Pitch circle diameter | 26.84 mm | 85.22 mm |
| Surface | Blank | Blank |
| Thread size | — | M 5 |
| Total length | 12 mm | 28 mm |
| Version | — | A |
| 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.
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