Schaefer Aluminum Stand-Up Spring Block

Specifications:

• Schaefer Aluminum Stand Up Spring Block on 1" T-Track Slider. Delrin(tm) Sheave
• A Stainless Steel Spring supports the block
• The Spring Pin locks slide in place
• Polyethylene liners reduce friction on slide
• Track Size 1" x 1/8" (25 mm x 3 mm)
• Boat Size: Up To LOA 27' (8 meters)
• Displacement: 5000 lbs ( 2270 kg)
• Sail Area: 315 square feet (29 sq meters)
• Sheave Diameter 2" (51 mm)
• Max Line 7/16" (11 mm)
• Dimensions:
  • Length: 3" (76 mm)
  • Width: 1-1/4" (31 mm)
  • Height: 4-5/32" (105 mm)
  • Bearing Height: 2-7/32" (56 mm)
• Safe Working Load 1750 lbs (795 kg)
• Weight: 7.0 oz. (198 g)