Brand: Ronstan
Ronstan Series 40 Orbit Cheek Block - RF45151
Ronstan Series 40 Orbit Cheek Block - RF45151
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The Ronstan Series 40 Orbit Cheek Block features an ultra-lightweight design with a 2-stage orbital ball bearing system, providing high working loads and low friction performance. Engineered for efficiency, this compact block is ideal for various rigging applications on small to medium-sized vessels.
Key Features:
- High-performance 2-stage bearing system with acetal ball bearings
- Lightweight, stress-optimized fiber-reinforced load frame
- Base designed to accommodate curved mounting surfaces
- Low mounting points to ensure maximum strength
- Recommended mounting: 3 x 4mm (5/32 in.) countersunk head screws
Specifications and Applications:
- Mainsheet and spinnaker sheet systems for dinghies up to 5m (16 ft.)
- Halyard, vang, and backstay applications for boats up to 8m (26 ft.)
- Control line applications for larger yachts
- Ball bearings: Carbon black Acetal
- Stage 2 bearing: Glass fiber reinforced, MoS2 impregnated Nylon
- Frame and cheeks: Glass fiber reinforced Nylon
- Sheave: Carbon fiber reinforced, PTFE impregnated Nylon
Product facts
- CT SKU
- CT-106469
- Model / MPN
- RF45151
- UPC / GTIN
- 9316800393602
- Package dimensions
- 1" X 2" X 5"
- Package weight
- 0.2 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.
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Shipping & returns
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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.
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Need help choosing?
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