GENERAL MACHINE PRODUCTS 70283 3" MANHOLE SHEAVE- LIP ROLLER NEW The Manhole Sheave or "Pittsburgh" is used to guide pulling line or cable over the manhole edge when placing and removing cable in manholes which are equipped with pulling in irons to support a sheave and shackle assembly.
Consists of a reinforced, heat-treated wrought aluminum alloy frame with two self-lubricating, bronze bushed aluminum sheaves
The frame also has a hole in each side plate so you can insert a 1 1/4 in. (32 mm) dia. digging bar parallel to the ground to keep the sheave from being knocked into the manhole
Approximate overall unit dimensions: 30 in. (762 mm) L x 12 in. (305 mm) W x 22 in. (559 mm) H
Sheaves are available to accommodate cable up to 3 in. (76 mm), 4 in. (100 mm) or 5 in. (130 mm) diameters
Standard units are rated at 36,000 lbs. (16 kN) The 80975 heavy duty 5 in. model is rated for 45,000 lbs. (20 kN)
Ordering Information:
P/N Max. Cable Diameter Weight
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70283 3 in. Manhole Sheave 32 lbs. (14 kgs)
70284 4 in. Manhole Sheave 55 lbs. (24 kgs)
70285 5 in. Manhole Sheave 65 lbs. (29 kgs)
80975 5 in. (Heavy Duty) 65 lbs. (29 kgs)