Description
Barton Size 7 70mm Plain Pulley Block | Boat Supply Store
Engineered for demanding rigging tasks on larger cruising and racing yachts, this Barton Size 7 pulley block provides a robust solution for mainsheet and traveler systems. Its 70mm sheave diameter and glass fiber nylon reinforced side plates contribute to exceptional strength. The integrated 316 stainless steel internal frame ensures long-term corrosion resistance and structural integrity, capable of handling ropes up to 14mm (9/16 inch) in diameter.
Key Features
- 70mm Sheave Diameter for efficient rope handling.
- Plain Bearing Sheave Assembly offers a cost-effective, reliable rotational interface.
- Single Swivel Head allows for versatile attachment angles and prevents line twisting.
- High-Grade Glass Fiber Nylon Reinforced Side Plates provide superior impact and UV resistance.
- 316 Stainless Steel Internal Frame guarantees robust structural integrity and exceptional corrosion resistance.
- Through-Bolted and Riveted Construction reinforces critical stress points for enhanced durability.
- Engineered for Superior Strength and Performance in challenging marine environments.
- Maximum Rope Size of 14mm (9/16 inch) accommodates a wide range of common rigging lines.
Specifications
| Product Specifications | |
|---|---|
| Sheave Diameter | 70mm |
| Bearing Type | Plain Bearing |
| Head Type | Single Swivel |
| Side Plate Material | High-grade glass fiber nylon reinforced molded |
| Internal Frame Material | 316 stainless steel |
| Maximum Rope Size | 14mm (9/16 inch) |
| Construction Method | Through-bolted and riveted |
Who This Is For
Sailors with larger cruising and racing yachts requiring a dependable single pulley block for essential rigging functions. This block is specifically designed for those who need robust hardware to manage mains and traveler systems effectively.
How It Compares
| Feature | Barton Size 7 70mm Plain Pulley Block | Competitor |
|---|---|---|
| Sheave Diameter | 70mm | — |
| Bearing Type | Plain Bearing | Ball Bearing, Plain Bearing |
| Head Type | Single Swivel | Single Swivel, Single Swivel |
| Max Rope Size | 14mm (9/16 inch) | — |
| Construction | Glass fiber nylon reinforced side plates, 316 stainless steel internal frame, through-bolted and riveted | High-strength composite, stainless steel, High-strength polymer, stainless steel |
Common Concerns Answered
Are there any drawbacks to the plain bearing system?
Some high-performance sailors might prefer ball bearings for the absolute lowest friction in extreme racing scenarios. However, the plain bearing in this Barton block offers excellent durability and reliability, providing a strong balance of performance and cost-effectiveness for most cruising and racing applications.
Is the load rating clearly stated for this pulley block?
While specific load ratings are not always explicitly detailed on every competitor's product, this Barton Size 7 block is engineered with reinforced construction, including a 316 stainless steel internal frame and robust side plates, designed to handle demanding loads typical for larger yachts.
Will this pulley block be suitable for my larger yacht?
Absolutely. This Barton Size 7 block, with its 70mm sheave and reinforced construction, is specifically designed for larger cruising and racing yachts that require more substantial rigging hardware. It's engineered for superior strength and performance in these demanding applications.
Frequently Asked Questions
What is the maximum rope size this Barton pulley block can accommodate?
This Barton pulley block is designed to accommodate a maximum rope size of 14mm (9/16 inch).
What is the sheave diameter of this Barton pulley block?
The sheave diameter of this Barton pulley block is 70mm.
What materials are used in the construction of this Barton pulley block?
The block features high-grade glass fiber nylon reinforced molded side plates and a 316 stainless steel internal frame.
Is this Barton pulley block suitable for both cruising and racing yachts?
Yes, this Barton pulley block is suitable for both cruising and racing yachts, particularly those requiring robust and reliable rigging hardware.
What is the load rating of this Barton pulley block?
Specific WLL (Working Load Limit) is not provided in the product specs, but the construction utilizing a 70mm sheave, reinforced side plates, and a 316 stainless steel frame indicates suitability for demanding applications on larger yachts.
