Description
Barton Size 5 54mm Double Block & Swivel | Boat Supply Store
Engineered for the demanding conditions of cruising and racing yachts, this Barton Size 5 double block and swivel system provides a robust solution for managing halyards and control lines. It features a 54mm sheave diameter and a maximum rope capacity of 12mm, ensuring compatibility with a wide range of rigging. Constructed with high-grade molded side plates and marine-grade 316 stainless steel load-carrying components, it offers exceptional durability with a Safe Working Load (SWL) of 750kg.
Key Features
- Robust Construction for demanding marine environments
- Marine-Grade 316 Stainless Steel components for superior corrosion resistance
- 54mm Sheave Diameter efficiently handles lines
- 12mm Max Rope Diameter for versatile rigging applications
- 750kg Safe Working Load (SWL) for heavy-duty use
- Plain Bearing Sheave for reliable, low-maintenance operation
- Double Block Configuration simplifies purchase systems
- Swivel Head allows for precise line orientation
Specifications
| Product Specifications | |
|---|---|
| Sheave Diameter | 54mm |
| Configuration | Double Block & Swivel |
| Bearing Type | Plain Bearing |
| Max Rope Diameter | 12mm (7/16") |
| SWL (Safe Working Load) | 750kg (1650lbs) |
| Break Load | 1500kg (3300lbs) |
| Weight | 290g |
| Dimensions | 130 x 59 x 58mm |
| Construction Material | Moulded side plates, 316 Stainless Steel interior components |
Who This Is For
Sailors and boat owners operating cruising or racing yachts who need a dependable double pulley block with a swivel function. This block is ideal for managing halyards, control lines, and mainsheet systems with ropes up to 12mm in diameter.
How It Compares
| Feature | Barton Size 5 54mm Double Block & Swivel | Competitor |
|---|---|---|
| Sheave Diameter | 54mm | — |
| Max Rope Diameter | 12mm (7/16") | — |
| Bearing Type | Plain Bearing | Ball Bearing, Plain Bearing |
| SWL (Safe Working Load) | 750kg (1650lbs) | Varies by specific model, typically lower for this size, Approx. 500kg |
| Construction Material | Moulded side plates, 316 Stainless Steel interior | Carbo (composite), Anodised Aluminium, Stainless Steel |
Common Concerns Answered
What is the difference between plain bearing and ball bearing sheaves in Barton blocks?
Plain bearing sheaves offer a simpler, more robust design that is inherently durable and less susceptible to contamination from salt and grit, making them ideal for demanding applications where maintenance is less frequent. Ball bearing sheaves provide lower friction, particularly under light loads, but can be more complex and require careful maintenance to maintain optimal performance.
Are there any limitations to the Barton Size 5 54mm pulley block?
While this Barton Size 5 block offers excellent durability with its plain bearing sheave, users requiring the absolute lowest friction for extremely sensitive control lines under light load might consider ball bearing options. Additionally, for highly specialized rigging on very small dinghies or exceptionally large superyachts, specific size or load-rated blocks might be necessary.
How does the Barton Size 5 54mm block compare to competitors in terms of load capacity?
The Barton Size 5 54mm double block boasts a significant Safe Working Load (SWL) of 750kg (1650lbs), positioning it strongly for heavy-duty applications on larger cruising and racing yachts compared to some smaller diameter or lower-rated competitor blocks.
Frequently Asked Questions
What is the maximum rope diameter this Barton pulley block can accommodate?
The Barton Size 5 54mm plain bearing pulley block is designed to accommodate ropes with a maximum diameter of 12mm (7/16").
What is the working load limit (SWL) for the Barton Size 5 54mm pulley block?
The Safe Working Load (SWL) for the Barton Size 5 54mm double block & swivel is 750kg (1650lbs).
Is this Barton pulley block suitable for offshore racing or cruising yachts?
Yes, with its robust construction utilizing marine-grade 316 stainless steel and a substantial SWL of 750kg, this block is engineered and suitable for the demanding conditions encountered on offshore racing and cruising yachts.
What marine-grade stainless steel is used in the construction of this block?
The load-carrying components and interior frame of the Barton Size 5 54mm pulley block are constructed from marine-grade 316 stainless steel, ensuring excellent corrosion resistance in saltwater environments.
How is the Barton Size 5 54mm block installed?
Installation is rated as 'Easy' (2/4). Attaching the block to a rope and rigging it into your system is straightforward. Securing the block to a deck, mast, or boom fitting may require basic knot-tying or splicing expertise depending on the specific mounting application.
