Schaefer Single Aluminum Ball Bearing Block with swivel shackle allows either a 2:1 or 3:1 purchase.
Schaefer furling blocks offer unique, smooth and reliable solutions for all furling systems. Simple clamp on design adapts to 1"-1-1/4" stanchions and features a delrin® ball-bearing. Strong, smooth-running blocks feature stainless steel or aluminum cheeks, stainless steel heads and straps, and Delrin® sheaves. Pulpit Furling Lead and Clamp-On Furling Block fit 1" tubing for mounting to stanchions. Ideal for furling line applications on most boats. Singles and Cheeks are ideal for control lines and halyards.
- Delrin® ball bearing sheave
- Stainless steel shackle
- Swiveling head
- Sheave Diameter: 1 7/16"
- Max. Line Diameter: 7/16" (12 mm)
- Max. Working Load (MWL): 1000 lb. (410 kg)
- Weight: 2.4 oz (68 g)
- Length: 3 25/32" (96 mm)
Single Block with Swivel Shackle
|Diameter||7/16 Inch or 11 mm|
|Integral Cleat||No Integral Cleat|
|Mount Type||Swivel Shackle|
|Safe Working Load||1000 Pounds|
|Sheave Diameter||37 mm|
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