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Ships within 48 hours · Estimated delivery Sep 30 - Oct 5
5mm (5/16" x 1-5/8")
Dynamic Butterfly Dolly
Safe Working Load (lb) - 6600
Line Size (in) - 1/2
Radii R (in)- 2 11/16
Schaefer Single Alum. Ball Bearing Block w/Swivel Shackle, Max Line 7/16" Wichard Hardware 5mm (5/16" x 1-5/8")Product Description Schaefer Single Alum. Ball Bearing Block w Swivel Shackle, Max Line 7 16" Single block with aluminum cheeks and ball bearing sheave. Delrin(tm) ball bearing sheave ensures low friction operation. For boats to 25', control lines on boats to 30'. Specifications: Sheave Dia.: 1 7 16 in. (37 mm) Thickness: 3 4 in. (19 mm) Width: 1 9 16 in. (40 mm) Length: 3 25 32 in. (96 mm) SWL: 1000 lbs. (410 kg) Weight: 2. 4 oz. (68 g) Max Line: 7
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