Pitch Control Paddle
Hubs Type
| Type | Characteristic | Remark | Picture |
| Type Ks | Hub as a whole grain | Common type | Picture 1 |
| Type KL | Hub as a whole grain,and it contains the oil cylinder | Common type | Picture 2 |
| Type Se | Hub as two half-grains | Common type | Picture 3 |
OD-Box Type
| Type | Characteristic | Matching type of hubs | Remark |
| Type A | Oil distribution box on a shaft | Type KL | Common types |
| Type B | Oil distribution box on forward end of the gear | Type Ks and Type Se | Common types |
Type and Specification
| Type | Hub &[mm] | Hub type | Max.&[mm] |
| 38 | 380 | KL/SE | 1450 |
| 40 | 400 | KL | 1550 |
| 42 | 420 | KL | 1600 |
| 45 | 450 | KL | 1750 |
| 46 | 460 | KL | 1800 |
| 50 | 500 | KL/SE | 1900 |
| 53 | 530 | KL/SE | 2050 |
| 60 | 600 | KL | 2300 |
| 66 | 660 | KL | 2550 |
| 69 | 690 | KL/SE | 2650 |
| 72 | 720 | KL/KS | 2800 |
| 76 | 760 | KL | 2900 |
| 79 | 790 | KL/KS | 3050 |
| 86 | 875 | KL/KS | 3350 |
| 96 | 960 | KL | 3700 |
| 102 | 1020 | KL | 3900 |
| 111 | 1110 | KL | 4300 |
| 121 | 1210 | KL | 4650 |