21.120 - Shafts and couplings
Show all standards in this group (20)
| ICS | Field | Number of standards |
|---|---|---|
| 21.120.10 | Shafts | 1 |
| 21.120.20 | Couplings | 2 |
| 21.120.30 | Keys and keyways, splines | 5 |
| 21.120.40 | Balancing and balancing machines | 13 |
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