![Ronstan Series 40 Orbit BB Sheave [RF48000]](https://cdn11.bigcommerce.com/s-tzjarqqxnb/images/stencil/1280x1280/products/29530/39919/97304XL__14432.1749582521.jpg?c=1 "Ronstan Series 40 Orbit BB Sheave [RF48000]")
![Ronstan Series 40 Orbit BB Sheave [RF48000]](https://cdn11.bigcommerce.com/s-tzjarqqxnb/images/stencil/500x659/products/29530/39919/97304XL__14432.1749582521.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
![Ronstan Series 40 Orbit BB Quad Block w\/Swivel Shackle [RF48400]](https://cdn11.bigcommerce.com/s-tzjarqqxnb/images/stencil/500x659/products/22315/28612/97318XL__34826.1714568366.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-tzjarqqxnb/images/stencil/500x659/products/22313/28610/97310XL__10257.1714568361.jpg?c=1 "Ronstan Series 40 Orbit Single BB Single Stand-Up Block [RF48140]")
![Ronstan Series 40 Orbit BB Quin Block w\/Swivel Shackle [RF48500]](https://cdn11.bigcommerce.com/s-tzjarqqxnb/images/stencil/500x659/products/22316/28613/97320XL__37728.1714568368.jpg?c=1 "Ronstan Series 40 Orbit BB Quin Block w\/Swivel Shackle [RF48500]")
![Ronstan Series 40 Orbit BB Double Block w\/Becket Swivel Shackle [RF48210]](https://cdn11.bigcommerce.com/s-tzjarqqxnb/images/stencil/500x659/products/22314/28611/97314XL__13486.1714568364.jpg?c=1 "Ronstan Series 40 Orbit BB Double Block w\/Becket Swivel Shackle [RF48210]")
![Ronstan Series 40 Ball Bearing Orbit Block - Cheek [RF45151]](https://cdn11.bigcommerce.com/s-tzjarqqxnb/images/stencil/500x659/products/10709/12838/70626XL__63118.1714538919.jpg?c=1 "Ronstan Series 40 Ball Bearing Orbit Block - Cheek [RF45151]")