JR Clancy Universal – 55/56/59 Series Loft Block
- May be mounted upright or underhung
- May be supported by I-beams, grid wells or Unistrut™
- Nylon or ASTM Class 30 grey iron sheaves are available. Nylon sheaves are quieter, have a higher capacity, lower weight and lower cost than blocks with cast iron sheaves.
- 8″ (203.2 mm) blocks have a 24″ (609.6 mm) base angle with a continuous pattern of holes and slots for universal mounting for a grip range up to 20″ (508 mm). Multi-line block base angles have a series of mounting holes.
- 8-Line blocks have the base angles turned in, requiring different upright and underhung models
- Clip package available for single line blocks with a combination of J-bolts and clips for both underhung, and upright mounting options
- Sealed precision ball bearings (Single line, 8″ [203.2 mm] nominal sheave only) or tapered roller bearings
- Side plates fully enclose sheave
- Five spacer between the side plates, three of which prevent cables from escaping the sheave grooves
- Pivot adapters (070-PIVOT) are available for single line 8″ (203.2 mm) blocks used in applications where the mounting surface is sloped
- Underhung loft blocks may need to be welded to loft beams after final alignment – consult the factory for specific information
