Description
Ronstan Series 30 Ball Bearing Block Lashing | Boat Supply Store
Engineered for minimal friction and maximum durability, this block is ideal for sailors and boaters utilizing dinghies up to 5m (16') or requiring precise control on larger yachts. Its fibre-reinforced composite construction ensures an exceptional strength-to-weight ratio, outperforming competitors in demanding marine environments. The precision 2-stage bearing system, featuring Acetal ball bearings and a full-contact secondary bearing, guarantees smooth operation for mainsail sheets, spinnaker sheets, halyards, and various control lines.
Key Features
- Unmatched strength-to-weight ratio for its class
- Durable fibre-reinforced composite construction
- Precision 2-stage bearing system for minimal friction
- High-compression Acetal ball bearings for smooth operation
- Self-lubricating Nylatron® sheave for longevity
- Versatile lashing, Dyneema® Link, and shackle attachment options
- Low profile and compact design for efficient deck space
- Proven Ronstan 2-stage bearing system for reliable performance
Specifications
| Product Specifications | |
|---|---|
| Brand | Ronstan |
| Series | 30 |
| Configuration | Single Becket Option Lashing |
| MPN | RF35109HL |
| Bearing System | 2-stage bearing system with Acetal ball bearings and full-contact bearing |
| Sheave Material | Nylatron® |
| Construction Materials | Fibre-reinforced composites |
| Max Dinghy Size | 5m (16') |
| Attachment Options | Lashing, Dyneema® Link, Shackle |
| Head Orientation (Single Lashing) | 0 or 90 degrees |
Who This Is For
This block is designed for sailors and boaters with dinghies up to 5m (16') and larger yachts needing lightweight, high-strength, low-friction blocks for critical lines. It is essential for optimizing performance on mainsails, spinnakers, halyards, vangs, backstays, and various control lines.
How It Compares
| Feature | Ronstan Series 30 Ball Bearing Block Lashing | Competitor |
|---|---|---|
| Sheave Diameter | Not specified | — |
| Working Load Limit | Not specified | — |
| Bearing System | 2-stage bearing system with Acetal ball bearings and full-contact bearing | Carbo Ratchomatic, Synchro |
| Weight | Lightweight (achieved through composites) | Heavier, Heavier |
| Attachment Options | Lashing, Dyneema® Link, Shackle | Swivel head with cleat, Single Swivel |
Common Concerns Answered
What is the working load limit for this Ronstan block?
While the specific working load limit is not explicitly stated on the product page, its construction with fibre-reinforced composites and a precision 2-stage bearing system is engineered for high loads, making it suitable for its intended applications on dinghies up to 5m and control lines on larger yachts.
Is the sheave diameter specified?
The sheave diameter is not explicitly stated on the product page; however, its suitability for modern sailing lines and its performance characteristics are well-documented for its class, ensuring efficient operation with common line sizes.
Why is the working load limit not listed?
The absence of a stated working load limit may be due to the highly specialized nature and advanced materials used, where performance and durability are paramount. For critical applications, consulting Ronstan's technical documentation or a marine hardware specialist is recommended.
Frequently Asked Questions
What materials are used in the construction of this Ronstan block?
This Ronstan block is constructed with high-performance, fibre-reinforced composite materials and features a self-lubricating Nylatron® sheave.
What are the primary applications for the Ronstan Series 30 Ball Bearing Block?
Primary applications include mainsail sheets, spinnaker sheets, halyards, vangs, backstays, and other control lines on dinghies up to 5m (16') and larger yachts.
How does the Ronstan Series 30 Ball Bearing Block compare to other blocks in its class?
It offers an unparalleled strength-to-weight ratio due to its advanced composite materials and features a precision 2-stage bearing system for exceptionally low friction, outperforming many competitors in weight and performance.
What are the attachment options for this block?
This block offers versatile attachment options including lashing, a Dyneema® Link, and various shackle configurations for secure and efficient integration into your rigging system.
How does the Ronstan Series 30 Ball Bearing Block achieve its low friction?
It utilizes a precision 2-stage bearing system that incorporates high-compression Acetal ball bearings and a secondary full-contact bearing, minimizing rotational resistance and wear.
