Description
Barton 45mm Plain Bearing Pulley Block | Boat Supply Store
Address sheeting and control line challenges with the Barton Size 3 45mm pulley block, engineered for compact efficiency in demanding marine environments. This block features a robust 45mm sheave diameter and a durable stainless steel frame, capable of handling up to 10mm (3/8 inch) diameter rope with a Safe Working Load of 400kg (881lbs). It is an essential component for optimizing purchase systems on dinghies, dayboats, and lightweight cruisers, providing reliable performance for mainsheets, vangs, and lead blocks.
Key Features
- Maximize control with the 45mm sheave diameter.
- Ensure smooth operation via the plain bearing system.
- Adaptable rigging with the single sheave, swivel, and becket.
- Benefit from exceptional durability with stainless steel frames.
- Achieve strength and low weight with 30% fiberglass-filled nylon and Acetal sheaves.
- Accommodate substantial loads with a Safe Working Load of 400kg (881lbs).
- Securely manage lines up to 10mm (3/8 inch) in diameter.
- Benefit from a compact footprint with 114 x 47 x 28mm dimensions.
Specifications
| Product Specifications | |
|---|---|
| Sheave Diameter | 45mm |
| Bearing Type | Plain |
| Swivel Head | Yes |
| Becket | Yes |
| Frame Material | Stainless Steel |
| Sheave Material | 30% fiberglass-filled nylon and Acetal |
| Max Rope Diameter | 10mm (3/8 inch) |
| Safe Working Load (SWL) | 400kg (881lbs) |
| Break Load | 800kg (1763lbs) |
| Weight | 91g |
| Dimensions | 114 x 47 x 28mm |
Who This Is For
Owners and sailors of dinghies, dayboats, and lightweight cruisers requiring a compact and reliable pulley block. This block is ideal for optimizing mainsheet, vang, and lead block systems where strength and durability are paramount.
How It Compares
| Feature | Barton 45mm Plain Bearing Pulley Block | Competitor |
|---|---|---|
| Sheave Diameter | 45mm | — |
| Max Rope Diameter | 10mm (3/8") | — |
| Bearing Type | Plain | Plain, Plain |
| SWL | 400kg (881lbs) | — |
| Weight | 91g | null, null |
Common Concerns Answered
What is the primary concern regarding plain bearings in pulley blocks?
Plain bearings, while offering a cost-effective and lightweight solution, can experience wear faster than ball bearing blocks under conditions of heavy or frequent use, potentially impacting long-term efficiency in very high-performance applications.
Are there situations where ball bearing blocks might be preferred over this Barton block?
Yes, for very high-load or high-frequency applications where minimizing friction and maximizing bearing longevity is critical, users may opt for blocks specifically featuring ball bearings.
How does Barton Marine address durability in this plain bearing block?
Barton Marine mitigates potential wear by utilizing robust stainless steel frames and high-strength composite sheaves made from 30% fiberglass-filled nylon and Acetal, ensuring sustained functionality for its intended applications.
Frequently Asked Questions
What is the maximum rope diameter this Barton pulley block can accommodate?
This Barton pulley block is designed to accommodate a maximum rope diameter of 10mm (3/8 inch).
What is the Safe Working Load (SWL) for the Barton Size 3 45mm pulley block?
The Safe Working Load (SWL) for the Barton Size 3 45mm pulley block is 400kg (881lbs).
What are the dimensions of the Barton Size 3 45mm pulley block?
The dimensions of the Barton Size 3 45mm pulley block are 114mm in length, 47mm in width, and 28mm in depth.
What is the bearing type used in this Barton pulley block?
This Barton pulley block utilizes a plain bearing for its operation.
What types of boats is this Barton pulley block suitable for?
This Barton pulley block is suitable for dinghies, dayboats, and lightweight cruisers, and is commonly used for systems such as mainsheets, vangs, or lead blocks.
