Brand: Ronstan
Ronstan Series 40 Orbit BB Cheek Block, RF48151
Ronstan Series 40 Orbit BB Cheek Block, RF48151
4 available
The Ronstan Series 40 Orbit BB Cheek Block provides high-performance reliability for various rigging systems on your sailboat. Designed with a 2-stage bearing system, this block utilizes primary ball bearings to minimize friction and a secondary full-contact bearing to maintain smooth operation across the full working load range.
- Construction: Lightweight, toughened glass fiber reinforced nylon cheeks provide high strength without the need for traditional stainless steel straps.
- Applications: Suitable for mainsheet systems and spinnaker sheets on dinghies, catamarans, and sportsboats up to 26 ft., as well as halyard, vang, or backstay use on boats up to 30 ft.
- Sheave Diameter: 1-9/16 in.
- Max Rope Diameter: 3/8 in.
- Maximum Working Load (M.W.L.): 880 lb.
- Breaking Load (B.L.): 1760 lb.
- Weight: 1.2 oz.
- Manufacturer Part Number: RF48151
Product facts
- CT SKU
- CT-112186
- Model / MPN
- RF48151
- UPC / GTIN
- 9316800629152
- Package dimensions
- 2" X 2" X 2"
- Package weight
- 0.1 lb
Fit-sensitive item: confirm measurements, model numbers, and manufacturer details before ordering. Tug & Tow does not guarantee universal compatibility from a product page alone.
Shipping & returns
Shipping & returns
Shipping methods, delivery estimates, and final costs appear at checkout before payment. Some bulky, supplier-shipped, or special-handling items may ship separately. See Shipping & Returns for return windows and eligibility.
Fit & compatibility
Fit & compatibility
Review the product title, description, images, dimensions, part numbers, and manufacturer details before purchase. For fit-sensitive items, confirm compatibility with your boat, RV, trailer, vehicle, or equipment.
Need help choosing?
Need help choosing?
Send us the product link or SKU, plus details about your boat, RV, trailer, vehicle, or project. We will help you narrow down the right option when product fit is not obvious.
