Description
Schaefer Series 3 Block 1-7/16" Delrin Sheave | Boat Supply Store
Managing running rigging on demanding coastal passages or offshore voyages requires robust hardware like the Schaefer Series 3 block. This block features a 1-7/16" (37mm) Delrin™ sheave engineered for smooth operation under high loads, supporting up to 7/16" (11mm) line. With a substantial Safe Working Load (SWL) of 1000 lbs. (450 kg) and a durable stainless steel base for superior load distribution, this component ensures reliable performance for cruising yachts operating in harsh marine conditions.
Key Features
- Smooth Operation with a Delrin™ plain bearing sheave.
- High Load Capacity rated at 1000 lbs. (450 kg) SWL.
- Durable Construction featuring a robust stainless steel base.
- Compact Design for efficient utilization of deck and rig space.
- Line Compatibility for up to 7/16" (11mm) diameter running rigging.
- Corrosion Resistance from the stainless steel base.
- Reliable Performance in challenging marine environments.
- Engineered for Longevity with quality materials.
Specifications
| Product Specifications | |
|---|---|
| Sheave Diameter | 1-7/16" (37mm) |
| Sheave Material | Delrin™ |
| Maximum Line Size | 7/16" (11mm) |
| Safe Working Load (SWL) | 1000 lbs. (450 kg) |
| Base Material | Stainless Steel |
| Dimensions (L x W x H) | 2-7/8" x 1-3/4" x 3/4" |
| Weight | 2.5 oz. (71 g) |
| Fastener Spacing | 2-3/8" (60mm) |
| Fastener Size | #10- RH (5mm) |
Who This Is For
Sailors and boaters requiring a reliable, high-strength block for managing running rigging on sailboats of all sizes. Ideal for those who demand durability and performance under load.
How It Compares
| Feature | Schaefer Series 3 Block 1-7/16" Delrin Sheave | Competitor |
|---|---|---|
| Sheave Diameter | 1-7/16" (37 mm) | — |
| Max Line Diameter | 7/16" (11 mm) | — |
| Safe Working Load (SWL) | 1000 lbs. (450 kg) | — |
| Sheave Material | Delrin™ | Carbo (Composite) Nylon |
| Base Material | Stainless Steel | Composite Anodized Aluminum |
Common Concerns Answered
Are there common issues with this block?
No widely reported complaints for this specific Schaefer Series 3 model indicate high customer satisfaction and product reliability.
How does its load capacity compare to other options?
With a 1000 lb SWL, this block offers substantial load handling capabilities, making it a strong contender against many competitors for its price point.
Is a ball-bearing block necessary for my application?
For applications requiring extremely low friction under constant, high-load adjustments, a ball-bearing block might be considered; however, the Delrin™ sheave in this Schaefer block provides excellent, smooth performance for most running rigging needs.
Frequently Asked Questions
What is the maximum line size this Schaefer block can handle?
The Schaefer Series 3 block is designed to accommodate lines up to 7/16" (11mm) in diameter.
What is the Safe Working Load (SWL) for the Schaefer Series 3 block?
This Schaefer Series 3 block has a Safe Working Load (SWL) of 1000 lbs. (450 kg).
What are the dimensions of the Schaefer Series 3 block?
The Schaefer Series 3 block measures 2-7/8" in length, 1-3/4" in width, and 3/4" in height.
What type of sheave does the Schaefer Series 3 block use?
The Schaefer Series 3 block utilizes a Delrin™ plain bearing sheave for smooth, efficient operation.
What material is the base of the Schaefer Series 3 block made from?
The base of the Schaefer Series 3 block is constructed from durable stainless steel for enhanced load distribution and longevity.
