Manufacturer part #: 408-201-07R
| Features | American | Metric | 
|---|---|---|
| Description | Roller Bearing Cheek Block 80 | |
| Max Line Size | 9/16 in | 14 mm | 
| Weight | 10 oz | 296 g | 
| Safe Working Load | 5511 lb | 2500 k | 
| Breaking Load | 11023 lb | 5000 k | 
| Shackle Ø | 3 x M8 | |
Manufacturer part #: 408-201-07R
 Low resistance at high, dynamic loads are the main characteristics of Seldén Roller Bearing Blocks (RBB). The ability to easily release a highly loaded backstay tackle, german sheeting boom, a spinnaker halyard or a kicker tackle makes for fast, safe and uncomplicated maneuvers. You will find yourself focusing on what really matters. Boat speed. 
Features
- Designed for high load, dynamic applications
 - Machined, black anodised aluminium cheeks and Torlon® roller bearings
 - PA washer insulates stainless from aluminium to prevent corrosion
 - The shackle features a Ø 6 mm body and Ø 8 mm pin, a strong and lightweight combination
 - The swivel pin is hollow and chamfered to reduce weight
 - Acetal ball bearing stabilize the sheave when subjected to side loads