![Ronstan Series 40 Orbit BB Sheave [RF48000]](https://cdn11.bigcommerce.com/s-2vfwgyus8b/images/stencil/1280x1280/products/75878/129803/97304XL__68386.1749582802.jpg?c=1 "Ronstan Series 40 Orbit BB Sheave [RF48000]")
![Ronstan Series 40 Orbit BB Sheave [RF48000]](https://cdn11.bigcommerce.com/s-2vfwgyus8b/images/stencil/500x659/products/75878/129803/97304XL__68386.1749582802.jpg?c=1 "Ronstan Series 40 Orbit BB Sheave [RF48000]")
Series 40 Orbit BB Sheave
Ball Bearing versions incorporate the 2-stage bearing system using ball bearings to minimize friction and a secondary full-contact bearing to maintain low friction across the full working load range.
Specifications:
- Sheave
- Captive BB
- Width: 15.5mm/5/8"
- Sheave Diameter: 40mm/1-9/16"
- Maximum Rope: 10mm/3/8"
- M.W.L.: 400kg/880lbs
- Weight: 30g/1.1oz
- MPN:
- RF48000
![Ronstan Series 40 Orbit BB Quin Block w\/Swivel Shackle [RF48500]](https://cdn11.bigcommerce.com/s-2vfwgyus8b/images/stencil/500x659/products/65935/113622/97320XL__79765.1667850573.jpg?c=1 "Ronstan Series 40 Orbit BB Quin Block w\/Swivel Shackle [RF48500]")
![Ronstan Series 40 Orbit BB Quad Block w\/Swivel Shackle [RF48400]](https://cdn11.bigcommerce.com/s-2vfwgyus8b/images/stencil/500x659/products/65933/113620/97318XL__18337.1667850569.jpg?c=1 "Ronstan Series 40 Orbit BB Quad Block w\/Swivel Shackle [RF48400]")
![Ronstan Series 40 Orbit Single BB Single Stand-Up Block [RF48140]](https://cdn11.bigcommerce.com/s-2vfwgyus8b/images/stencil/500x659/products/65925/113612/97310XL__58177.1667850553.jpg?c=1 "Ronstan Series 40 Orbit Single BB Single Stand-Up Block [RF48140]")
![Ronstan Series 40 Orbit BB Double Block w\/Becket Swivel Shackle [RF48210]](https://cdn11.bigcommerce.com/s-2vfwgyus8b/images/stencil/500x659/products/65929/113616/97314XL__16421.1667850561.jpg?c=1 "Ronstan Series 40 Orbit BB Double Block w\/Becket Swivel Shackle [RF48210]")