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Nominal diameter d/mm | Spiral nib quantity/pcs | Basic size | Outline size | Single rib size | Spiral rib lead (c) | ||
Base diameter D1/mm | Tolerance /mm | Outline diameter D/mm | Tolerance /mm | Width a/mm | |||
3.00 | 3-4 | 2.80 | ±0.05 | 3.2 | ±0.05 | 0.9~1.3 | 24~30 |
4.00 | 3-4 | 3.85 | ±0.05 | 4.25 | ±0.05 | 0.9~1.3 | 24~30 |
4.80 | 4 | 4.60 | ±0.05 | 5.10 | ±0.05 | 1.3~1.7 | 28~36 |
5.00 | 4 | 4.80 | ±0.05 | 5.30 | ±0.05 | 1.3~1.7 | 28~36 |
6.00 | 4 | 5.80 | ±0.05 | 6.30 | ±0.05 | 1.6~2.0 | 30~38 |
6.25 | 4 | 6.00 | ±0.05 | 6.70 | ±0.05 | 1.6~2.0 | 30~40 |
7.00 | 4 | 6.73 | ±0.05 | 7.46 | ±0.1 | 1.8~2.2 | 35~45 |
8.00 | 4-6 | 7.75 | ±0.05 | 8.45 | ±0.1 | 2.0~3.4 | 40~50 |
9.00 | 4-6 | 8.75 | ±0.05 | 9.45 | ±0.1 | 2.1~3.7 | 42~52 |
10.00 | 4-6 | 9.75 | ±0.05 | 10.45 | ±0.1 | 2.5~4.0 | 45~58 |
11.00 | 6 | 10.5 | ±0.05 | 11.6 | ±0.1 | 2.5~3.0 | 65~80 |
12.00 | 6 | 11.5 | ±0.05 | 12.6 | ±0.1 | 3.0~3.5 | 75~85 |
13.00 | 6 | 12.4 | ±0.05 | 13.5 | ±0.1 | 3.2~3.8 | 75~90 |