Description
Schaefer Spring Loaded Furling Block 1" Stanchion | Boat Supply Store
Secure and exceptionally smooth furling line operation is critical for helmsman control, especially in demanding offshore conditions or during critical tacking maneuvers. This Schaefer Marine Pulpit Furling Lead Block, engineered for 1" stanchions, features a robust stainless steel spring for unwavering support and a 1-7/16" (37mm) Delrin™ ball bearing sheave that minimizes friction for precise furling line management. With a substantial 1000 lbs (450kg) safe working load and capacity for lines up to 7/16" (11mm), it provides the reliability needed for serious cruising sailboats operating in Galveston Bay chop or navigating the Gulf Stream.
Key Features
- Maximum support via robust stainless steel spring
- Low-friction operation from Delrin™ ball bearing sheave
- Secure mounting specifically for 1" stanchions
- High capacity for furling lines up to 7/16" (11mm)
- Exceptional strength with a 1000 lbs (450kg) safe working load
- Compact design for efficient deck space utilization
- Durable construction for long-term marine use
- Smooth line handling enhancing sail control
Specifications
| Product Specifications | |
|---|---|
| Sheave Diameter | 1-7/16" (37mm) |
| Sheave Material | Delrin™ Ball Bearing |
| Spring Material | Stainless Steel |
| Stanchion Size | 1" (25mm) |
| Maximum Line Size | 7/16" (11mm) |
| Safe Working Load (SWL) | 1000 lbs (450kg) |
| Length | 4-11/32" |
| Width | 1-9/16" |
| Weight | 4 oz (113g) |
| Brand | Schaefer Marine |
| MPN | 300-35 |
Who This Is For
Sailors and boat owners requiring a dependable, low-friction block for their furling lines, specifically designed for secure attachment to 1" diameter stanchions. This block is ideal for those prioritizing smooth operation and robust construction for critical sail handling.
How It Compares
| Feature | Schaefer Spring Loaded Furling Block 1" Stanchion | Competitor |
|---|---|---|
| Sheave Diameter | 1-7/16" (37mm) | 1-1/2" (38mm), 1-3/8" |
| Max Line Size | 7/16" (11mm) | 1/2" (13mm), 7/16" |
| Safe Working Load | 1000 lbs (450kg) | — |
| Stanchion Size | 1" (25mm) | Not specified for stanchion mounting, Not specified for stanchion mounting |
| Sheave Material | Delrin™ Ball Bearing | Nylon, Not specified, likely composite |
| Spring Loaded | Yes | No, No |
Common Concerns Answered
How does this block handle under load?
The Schaefer Pulpit Furling Lead Spring Loaded Block boasts a high Safe Working Load (SWL) of 1000 lbs (450kg), ensuring secure and reliable operation even under significant sail loads. Its robust stainless steel spring provides consistent tension and support, minimizing line slippage and enhancing control.
Is this block suitable for harsh marine environments?
Yes, the combination of a stainless steel spring and a Delrin™ ball bearing sheave is designed for durability in marine environments. Delrin™ is known for its excellent wear resistance and low friction, contributing to the longevity and performance of the block.
What if I need a block for a different stanchion size?
This specific model is engineered for 1" stanchions. For other stanchion diameters, alternative mounting hardware or different block models from Schaefer Marine or other manufacturers may be required. Always verify compatibility before installation.
Frequently Asked Questions
What is the maximum line size this block can accommodate?
This block can accommodate a maximum line size of 7/16" (11mm).
What is the safe working load for the Schaefer Pulpit Furling Lead Spring Loaded Block?
The safe working load for this block is 1000 lbs (450kg).
What material is the sheave made of?
The sheave is constructed from Delrin™ with ball bearings for exceptionally smooth operation.
What is the purpose of the spring in this block?
The spring provides secure mounting pressure against the stanchion, ensuring the block remains firmly in place and under consistent tension for reliable furling line lead.
What size stanchions is this block designed for?
This block is specifically designed for 1" (25mm) stanchions.
