J.R. Clancy, Incorporated -Multi-Sheave Blocks

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Features
  • Blocks may be mounted upright or underhung
  • Blocks with three or more sheaves are constructed with the base angle legs turned in to allow close mounting centers. Base angles are notched to clear ropes and cables.

Category: rigging systems | stage equipment | stages...

MasterFormat: Entertainment and Recreation Equipment | Broadcast, Theater, and Stage Equipment | Rigging Systems and Controls



J.R. Clancy, Incorporated
7041 Interstate Island Road
Syracuse, NY 13209
Tel: (800) 836-1885
Fax: (315) 451-1766

marilynlarsen@jrclancy.com

http://www.jrclancy.com

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Overview


Multi-Sheave Blocks

Features

  • Blocks may be mounted upright or underhung
  • Blocks with three or more sheaves are constructed with the base angle legs turned in to allow close mounting centers. Base angles are notched to clear ropes and cables.
  • Nylon or ASTM Class 30 grey iron sheaves
  • 17mm sealed precision ball bearings
  • 12-gauge side plates located outside and between sheaves


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Specifications

Options
Sheave
Diam.
LinesBearingsCast Iron
Prod. Code
RWLWeightNylon
Prod. Code
RWLWeight
8-5/8″ (219 mm)217mm BB400-20855C75900 lb (408 kg)27 lb (12 kg)400-20855N75900 lb (408 kg)21 lb (9.5 kg)
8-5/8″ (219 mm)317mm BB400-30855C75900 lb (408 kg)35 lb (15.9 kg)400-30855N75900 lb (408 kg)26 lb (11.8 kg)
8-5/8″ (219 mm)417mm BB400-40855C75900 lb (408 kg)42 lb (19 kg)400-40855N75900 lb (408 kg)31 lb (14 kg)
8-5/8″ (219 mm)517mm BB400-50855C75900 lb (408 kg)50 lb (22.7 kg)400-50855N75900 lb (408 kg)36 lb (16.3 kg)
Change the last two characters from “75” (3/4″ rope) to “25” for 1/4″ cable.
RWL: RWL is maximum load that can be applied to a block which is in “like new” condition and has been properly installed, maintained and operated.