Click to enlargeBarton Size 4 58mm Plain Bearing Pulley Upright Block
Manufacturer: Barton MarinePart #: N04150SKU: 106985
- Stainless Steel
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Item #: 106985
Category: Hardware
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Description
Size 4 58mm Plain Bearing Pulley Upright Block The Size 4 Barton range of blocks has a 58mm (2 5/16″) sheave. They are of a rugged construction featuring high-grade molded side plates that are through-bolted and riveted for added strength and security.
All load-bearing components and interior frame are from marine grade 316 stainless steel and both plain and ball-bearing sheaves are available. This sleek and versatile range is engineered for use on larger cruising and racing yachts and is compatible with our ball-bearing mainsheet traveler system.
The 54mm sheave Size 4 range is of rugged construction, featuring high-grade molded side plates that are through-bolted and riveted for added strength and security. All load-carrying components and interior frame are from marine grade 316 stainless steel and both plain and ball bearing sheaves are available.
This sleek and versatile range is engineered for use on larger cruising and racing yachts and is compatible with our ball bearing mainsheet traveller system. Suitable for up 12mm (7/16″) rope.
Specifications
| Brand | Barton Marine |
|---|---|
| Part Number | N04150 |
| EverTide SKU | 106985 |
| UPC | 5035088081172 |
| Material | Stainless Steel |
Specifications are provided by the manufacturer. Confirm fitment for your application before ordering, or contact us and we'll help.
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Returns & warranty
Returns are accepted within 30 dayson items that are unused and in their original packaging. Some items may be subject to a manufacturer restocking fee. Special-order items may not be eligible — if you're unsure, ask us before ordering.
Barton Marine productscarry the manufacturer's standard warranty. For a warranty claim or a return authorization, see our full returns policy or contact us.
Sailing — frequently asked
- How do I size a block for my sailboat?
- Match the block to the line diameter it will carry and to the working and breaking loads of the system (sheet, halyard, control line). Makers publish load ratings and line-size ranges — choose a block whose working load comfortably exceeds the real-world load, without going so large it adds needless weight.
- What is running rigging?
- Running rigging is the moving lines that control the sails — sheets, halyards, and control lines — as opposed to standing rigging (the fixed wire that holds up the mast). Running rigging should be matched to the boat’s blocks, clutches, and winches for smooth, reliable sail handling.
- How do I maintain sailboat winches and hardware?
- Rinse with fresh water after sailing, keep sheaves and bearings clean, and periodically service winches (disassemble, clean, and re-grease per the maker’s instructions). Marine-grade stainless and good maintenance keep hardware working smoothly when loads are high and timing matters.
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