Product Details
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 Kite Block - Black w/White Sheave (Pair) [RF13101-2] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/55071XL_{width}x.jpg?v=1677092424)
![Ronstan Series 30 Ball Bearing Orbit Block - Cheek [RF35151] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/55176XL_{width}x.jpg?v=1677092481)
![Ronstan Series 50 All Purpose Block - Single - Universal Head [RF51100] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/55253XL_{width}x.jpg?v=1677092525)
![Ronstan Series 30 Block - Single - Loop Top [RF280] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/55161XL_{width}x.jpg?v=1677092470)
![Ronstan Series 40 All Purpose Block - Single - Universal Head [RF41100] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/55201XL_{width}x.jpg?v=1677092491)
![Harken 22mm Fiddle Micro Block w/V-Jam [244]](http://roughseasmarine.com/cdn/shop/files/79042XL_{width}x.jpg?v=1699443489)
![Barton Single DO 550 Rope Clutch Cruising Racing Max 12mm Line [81500]](http://roughseasmarine.com/cdn/shop/files/109038XL_{width}x.jpg?v=1748919353)
