Ronstan Orbit Series 55 BB Fiddle Block with Cleat RF55521
Ronstan Orbit Series 55 BB fiddle block with cleat RF55521
- Part No.: RF55521
- Sheave Ø mm: 55+35
- Max. sheet mm: 10
- for rope up to 10mm
- SWL daN: 500**
- BL daN: 1000
Ronstan number RF55521
**SWL cleat 175 daN
The Orbit ball bearing is unique.
The proven Two-Step bearing system allows minimal friction under load.
The Dyneema® Link is 10 times stronger than stainless steel and can be attached straight (0°) or transversely (90°).
Cheeks, cleat arms and cleats are made of reinforced plastic.
Double and triple blocks are manufactured without double side plates, making them narrower and lighter than conventional blocks.