Brand: Ronstan
Ronstan Series 40 Triple Swivel Head Ball Bearing Block
Ronstan Series 40 Triple Swivel Head Ball Bearing Block
4 available
About this product
The Ronstan Series 40 Triple Swivel Head Block features a 2-stage ball bearing system designed for consistent performance across a full load range. This high-performance block utilizes a low-friction bearing system and includes a swivel shackle head that allows for full 360-degree rotation.
Key Features:
- Triple-sheave configuration for multi-line control
- Swivel shackle head for 360-degree rotation
- Low-friction Acetal or Torlon ball bearing system
- Lightweight design with cheek cut-outs for easy bearing maintenance
- Constructed with UV-stabilized Acetal sheaves and impact-resistant, fiber-reinforced Nylon cheeks
- Grade 316 stainless steel load strap and head fitting for durability
Applications and Compatibility:
- Recommended for mainsheet, halyard, vang, and spinnaker control lines
- Suitable for off-the-beach catamarans, one-design classes, and sportsboats up to 8m (26ft)
- Manufacturer Part Number: RF40300
- Secure checkout
- 21-day return requests
- Free standard shipping $100+
Product facts
- CT SKU
- CT-117304
- Model / MPN
- RF40300
- UPC / GTIN
- 9316800255351
- Package dimensions (H × W × L)
- 2" X 3" X 4"
- Package weight
- 0.43 lb
Specifications
- Type
- Ronstan Series 40 Ball Bearing Block - Triple - Swivel Head
Shipping & returns
Shipping & returns
Request an eligible return within 21 calendar days after delivery. Every physical return requires written approval and an RMA number and must be shipped within five business days after the RMA is issued. The customer pays return shipping for an ordinary return. Tug & Tow provides prepaid return shipping for a verified damaged, defective, short, or incorrect shipment. We do not charge a restocking fee. See Shipping & Returns for eligibility, exclusions, and details.
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.
