Description
Barton Size 5 54mm Pulley Block | Boat Supply Store
This Barton Size 5 54mm plain bearing pulley block is engineered for demanding marine applications on larger cruising and racing yachts. It features a robust construction utilizing 316 stainless steel for all load-carrying components and an impressive Safe Working Load (SWL) of 750kg, ensuring reliability in critical rigging systems. The integrated swivel head with a becket allows for versatile attachment points and efficient tackle configuration, making it suitable for mainsheet systems or cascading halyards.
Key Features
- 54mm Sheave Diameter for efficient rope handling
- Plain Bearing Sheave for straightforward operation
- Swivel Head with Becket for versatile rigging configurations
- Rugged Construction with high-grade moulded side plates
- Marine-Grade 316 Stainless Steel load-carrying components
- Suitable for Rope up to 12mm (7/16") diameter
- High Safe Working Load (SWL) of 750kg (1650lbs)
- Durable and Secure for demanding yacht applications
Specifications
| Product Specifications | |
|---|---|
| Brand | Barton Marine |
| Sheave Diameter | 54mm |
| Bearing Type | Plain Bearing |
| Head Type | Swivel with Becket |
| Max Rope Diameter | 12mm (7/16") |
| Safe Working Load (SWL) | 750kg (1650lbs) |
| Break Load | 1500kg (3300lbs) |
| Weight | 220g |
| Dimensions | 150 x 58 x 37mm |
| Material | 316 Stainless Steel Load-Carrying Components |
Who This Is For
Sailors and boat owners with larger cruising and racing yachts requiring a robust single pulley block with swivel and becket functionality. This block is ideal for various rigging needs, including primary mainsheet systems where durability and load capacity are paramount.
How It Compares
| Feature | Barton Size 5 54mm Pulley Block | Competitor |
|---|---|---|
| Sheave Diameter | 54mm | — |
| Bearing Type | Plain Bearing | Ball Bearing, Ball Bearing |
| Safe Working Load (SWL) | 750kg (1650lbs) | — |
| Max Rope Diameter | 12mm (7/16") | — |
| Block Type | Single Swivel + Becket | Single Swivel, Single Swivel |
Common Concerns Answered
Will the plain bearing generate too much friction for high-performance racing?
While plain bearings offer a robust and simpler design, users requiring the absolute lowest friction for high-speed or extremely high-load racing applications may find ball bearing blocks more suitable. For general cruising and moderate racing, this block's plain bearing provides reliable performance.
Is this pulley block readily available in all configurations?
Barton Marine offers a comprehensive range of blocks; however, specific configurations or sizes can occasionally experience temporary stock limitations depending on retailer inventory. We recommend checking availability for your exact needs.
What is the primary advantage of a plain bearing over a ball bearing in this application?
The plain bearing in this Barton block offers a simpler, more durable design with fewer moving parts, making it less susceptible to contamination and damage in harsh marine environments. While it may have slightly higher friction than ball bearings, its robustness and ease of maintenance are significant advantages for many applications.
Frequently Asked Questions
What is the maximum rope diameter this Barton pulley block can accommodate?
The Barton Size 5 54mm pulley block is designed to accommodate ropes up to a maximum diameter of 12mm (7/16").
What is the Safe Working Load (SWL) for the Barton Size 5 54mm pulley block?
The Safe Working Load (SWL) for this Barton pulley block is 750kg (1650lbs).
What is the difference between plain bearing and ball bearing sheaves in Barton pulley blocks?
Plain bearings utilize a smooth surface for rotation, offering simplicity and durability, whereas ball bearings use rolling elements to significantly reduce friction, ideal for high-speed or heavy-load applications where efficiency is critical.
Is this Barton pulley block suitable for use on racing yachts?
Yes, this Barton pulley block is suitable for racing yachts, particularly for applications where its robust construction and high load ratings are prioritized over the absolute minimal friction offered by ball bearing blocks.
What materials are used in the construction of this Barton pulley block?
This Barton pulley block features high-grade moulded side plates and marine-grade 316 stainless steel for all load-carrying components and the interior frame, ensuring excellent corrosion resistance and strength.
