J.R. Clancy, Incorporated -Head Blocks, Underhung - 59 Series

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  • Underhung style, normally supported by two structural I-beams.
  • ASTM Class 30 grey iron or nylon sheave.
  • Equal pitch diameter on rope and cable grooves for smooth operation.
  • Tapered roller bearings.


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


Head Blocks, Underhung - 59 Series

  • Underhung style, normally supported by two structural I-beams.
  • ASTM Class 30 grey iron or nylon sheave.
  • Equal pitch diameter on rope and cable grooves for smooth operation.
  • Tapered roller bearings.
  • Base angle legs turned in to allow close mounting centers.
  • 10 gauge side plates fully enclose sheave; 16" blocks have 7 gauge side plates.
  • Side plates are bolted and welded to the base angles for extra strength.
  • Six spacers between the side plates, three prevent cables from escaping the sheave grooves.
  • Base angles punched with alternating slots and holes for simple easy installations.
  • Mounting clips available, please provide steel dimensions.
  • Underhung blocks may need to be welded to head beams after final alignment. Clip angles are recommended for double beam mounting. Mounting with clips or to single beams will require welding. Consult the factory for specific information.
  • Head block capacities are affected significantly by mounting conditions, see the “More Info” tab for tables of capacities


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Specifications

Ordering Information
SheaveRopeDiam.LinesBearingCast Iron Prod. CodeWt.NylonProd. CodeWt.RWL (capacity)
Single PurchaseSingle PurchaseSingle PurchaseSingle PurchaseSingle PurchaseSingle PurchaseSingle PurchaseSingle PurchaseSingle Purchase
8"3/4"6 @ 1/4"1"100-60859C2546 lbtable
8"3/4"8 @ 1/4"1"100-80859C2552 lbtable
12"3/4"6 @ 1/4"1"100-61259C2572 lb100-61259N2540 lbtable
12"3/4"8 @ 1/4"1"100-81259C2579 lb100-81259N2541 lbtable
12"3/4"10 @ 1/4"1"100-101259C2586 lbtable
16"1"6 @ 3/8"1-1/2"100-61659C381139 lbtable
16"1"8 @ 3/8"1-1/2"100-81659C381147 lbtable
Double PurchaseDouble PurchaseDouble PurchaseDouble PurchaseDouble PurchaseDouble PurchaseDouble PurchaseDouble PurchaseDouble Purchase
12"3/4"6 @ 1/4"1"1CD-61259R72 lb1ND-61259R40 lbtable
12"3/4"8 @ 1/4"1"1CD-81259R79 lb1ND-81259R41 lbtable
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