RB661C
High-tension steel
Semi-cartridge type upper & lower cups
Loose-proof Mechanism
Technical Information
| Material | Height | Information | ||
| Top Lock Nut | ADC | Zink Alloy | 9.7mm | 8 flats 32mm width, 8.2mm Threading |
| Key Washer | ADC | Zink Alloy | ||
| Adjusting Cup | SS41 | Steel | 12.0mm | Serated top |
| Upper Stationary Cone | SS41 | Steel | 17.5mm | Insertion 30.0 +0.15 -0/ 8.5mm depth/ Semi-Cartridge type |
| Lower Stationary Cup | SPCC | Steel | 17.5mm | Insertion 30.0 +0.15 -0/ 8.5mm depth/ Semi-Cartridge type |
| Crown Cone | SPCC | Steel | 4.1mm | Insertion 27.0 +0 -0.1 |
| Color valiations | CP |