Schaefer blocks have been manufactured in the United States since 1966 and are known for their legendary strength. Blocks are made from 316 stainless steel and hard coat anodized 6061-T6 aluminum alloy while the sheaves are made of UV protected Delrin. Schaefer offers the widest range of products for building block and tackle systems. Pulpit Furling Lead Spring Loaded Block - 1" Ball Bearing. The Stainless Steel spring guarantees maximum support for the block. Delrin ball bearing sheave ensures low-friction lead for your furling line. Specifications: 1" (25mm) stanchions Length 4-11/32" (111mm) Width 1-9/16"(40mm) Safe Working Load 1000 lbs (450kg) Weight 4 oz (113g) Max line size 7/16" (11mm) Sheave diameter 1-7/16" (37mm).
| Materials & Construction | |
| Color | grey |
| Material | Stainless Steel, Delrin |
| Product Details | |
| Bearing Type | Ball Bearing |
| Item model number | 300-35 |
| Material | Stainless Steel, Delrin |
| Sizing & Dimensions | |
| Height | 1 inches |
| Length | 5 inches |
| Product Dimensions | 5 x 3 x 1 inches |
| Size | Fits 1" (25mm) Stanchions |
| Weight | 4.8 ounces |
| Width | 3 inches |
| Technical Specifications | |
| Max line size | 7/16" (11mm) |
| Safe Working Load | 1000 lb (450 kg) |
| Sheave diameter | 1-7/16" (37mm) |
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