Description
Barton Marine 64mm Ball Bearing Rope Sheave | Boat Supply Store
Maintain optimal sail control and rigging efficiency with this essential replacement sheave. Engineered with a 64mm diameter and a 6mm bore, this sheave is constructed from robust, UV-resistant acetal resin for extended service life in demanding saltwater conditions. Its integrated low-friction ball race system, utilizing precision Delrin balls, minimizes line chafe and ensures exceptionally smooth operation under load, critical for precise sail trim in challenging coastal or offshore environments.
Key Features
- Ultra-Low Friction: Delrin ball bearing system ensures minimal resistance for effortless line movement.
- Exceptional Durability: Constructed from UV-resistant acetal resin to withstand harsh marine elements.
- Smooth Operation: Advanced ball race design guarantees reliable performance under load.
- Precise Fitment: 6mm bore size integrates seamlessly with Barton block systems.
- Longevity: Resists degradation from sun exposure, salt, and water.
- Direct Replacement: Designed as an all-purpose sheave for the Barton block range.
- Corrosion Resistant: Acetal resin and Delrin are inherently resistant to marine corrosion.
- Reduced Line Wear: Low-friction surface minimizes chafe on your running rigging.
Specifications
| Product Specifications | |
|---|---|
| Overall Diameter | 64mm |
| Hub Width | 18mm |
| Bore Size | 6mm |
| Material | UV-resistant acetal resin |
| Bearing Type | Ball race system with Delrin balls |
| Brand | Barton Marine |
Who This Is For
Sailors and boat owners requiring a high-performance, durable replacement sheave for their existing Barton block systems. Marine hardware technicians will also find this ideal for block maintenance and repair in challenging maritime conditions.
How It Compares
| Feature | Barton Marine 64mm Ball Bearing Rope Sheave | Competitor |
|---|---|---|
| Sheave Diameter | 64mm | — |
| Bearing Type | Ball Bearing (Delrin balls) | Ball Bearing, Ball Bearing |
| Material | UV-resistant acetal resin | High-strength composite, Acetal |
| Hub Width | 18mm | Varies by specific block model, Varies by specific block model |
| Bore Size | 6mm | Varies by specific block model, Varies by specific block model |
Common Concerns Answered
Can I use this sheave with a block from a different manufacturer?
This sheave is specifically designed as a replacement for Barton block systems. While some dimensions may be similar, compatibility with non-Barton blocks is not guaranteed due to variations in hub width, bore size tolerances, and overall block assembly.
Is it difficult to find individual sheaves compared to complete blocks?
While complete blocks are more commonly stocked, individual sheaves like this Barton Marine 64mm sheave are available for targeted repairs. Sourcing individual components allows for cost-effective maintenance of existing, well-functioning blocks.
What if I need a different bore size for my application?
This specific sheave features a 6mm bore. For applications requiring non-standard bore sizes, alternative sheaves or complete block assemblies may need to be sourced.
Frequently Asked Questions
What is the Barton Marine 64mm Diameter Ball Bearing Rope Sheave made of?
The sheave is molded from UV-resistant acetal resin, and it features a low-friction ball race system with Delrin balls.
What are the dimensions of the Barton Marine 64mm Diameter Ball Bearing Rope Sheave?
The sheave has an overall diameter of 64mm, a hub width of 18mm, and a bore size of 6mm.
What is the purpose of the Delrin balls in this sheave?
The Delrin balls are part of the low-friction ball race system, designed to significantly reduce resistance and ensure ultra-smooth rotation of the sheave as the rope passes over it.
Is this sheave UV-resistant?
Yes, the sheave is molded from UV-resistant acetal resin, which protects it from degradation caused by prolonged exposure to ultraviolet radiation from the sun.
Can this sheave be used in harsh marine environments?
Absolutely. The UV-resistant acetal resin construction and the robust Delrin ball bearing system are engineered to withstand the demanding conditions of marine environments, including saltwater, UV exposure, and high loads.
