JR Clancy Loft Block Underhung – 19 Series
- Underhung style, supported by a single structural beam
- Nylon or ASTM Class 30 grey iron sheaves
- Sealed precision ball bearings (Single line 8″ [203.2 mm] nominal sheave only) or tapered roller bearings
- 10-gauge side plates
- 3/4″ (19 mm) drawbolt and steel clip allow a 4″ (101.6 mm) grip adjustment to accommodate a range of beam sizes
- A minimum of three spacers between the side plates; to prevent cables from escaping the sheave grooves
