| Table 24: Disc harrow units Tri-Ply seal series Relubricatable type |
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| Unit No. | Shaft | B | H2 | L | H | G | J | N | N1 | Static Load | Dynamic Load |
| Diam. | Rating Cor | Rating Cr | |||||||||
| Ibf | Ibf | ||||||||||
| Round bore | |||||||||||
| ST491A | 1-3/4RD. | 2001-11-16 | 4 | 5 | 2-9/32 | 2-11/64 | 5 | 13.5 | 4000 | 8150 | |
| ST491B | 1-1/2RD. | 2001-11-16 | 4 | 5 | 2-13-32 | 2002-1-4 | 5 | 13.5 | 17.46 | 4000 | 8150 |
| DHU1-3/4F-211 | 1-3/4RD. | 54 | 4 | 139.7 | 2002-7-8 | 2.746 | 139.7 | 13.5 | 5600 | 10800 | |
| DH2-3/16R-211 | 2-3/16RD. | 55.6 | 4 | 139.7 | 2002-7-8 | 2.746 | 139.7 | 13.5 | 5600 | 10800 | |
| FDZ11RJA | 1-15/16RD. | 54 | 4 | 139.7 | 2002-7-8 | 2.746 | 139.7 | 13.5 | 5600 | 10800 | |
| Square bore | |||||||||||
| DHU1-1/8S-209 | 1-1/8RD. | 42.86 | 4 | 127 | 2-23/64 | 2.279 | 41.7 | 13.5 | 17.46 | 4000 | 8150 |