Sheave Dimensions
Sheave Dimensions
Cable Sheaves are used in placing and removing underground cables.
  • Constructed from high-strength aluminum alloy, they have self-lubricating bushings for long, maintenance-free lives
  • These units are available in 11 in (280mm), 20 in. (510 mm) and 26 1/2 in. (675mm) dia., and are used with 3 in ( 80mm), 4 in. (102mm) and 5 in. (130mm) cables.
  • They are used with the GMP cable sheave shackle or jam skid. The pin is supplied with the cable sheave shackle or jam skid.
26.5, 20 and, 11 in. Sheaves





Ordering Information and Dimensions for Sheaves with a 1 5/16 in. (33mm) axle pin

717264 in. (10cm)11 in. (28cm)7 7/8 in. (20cm)4 1/2 in. (11.5cm)20 lbs. (9kg)
717295 in. (13cm)11 in. (28cm)6 7/8 in. (17cm)5 1/2 in. (14cm)25 lbs. (11kg)
717254 in. (10cm)20 in. (51cm) 16 in. (41cm) 4 1/2 in. (11.5cm)36 lbs. (16kg)
717285 in. (13cm)20 in. (51cm)16 1/2 in. (42cm)5 1/2 in. (14cm)40 lbs. (18kg)
717213 in. (8cm)26 1/2 in. (67cm)24 in. (61cm)3 1/2 in. (9cm)38 lbs. (17kg)
717244 in. (10cm) 26 1/2 in. (67cm) 22 1/2 in. (57cm) 4 1/2 in. (11.5cm)44 lbs. (19kg)
717275 in. (13cm)26 1/2 in. (67cm)23 in. (58cm)5 1/2 in. (14cm)56 lbs. (25kg)

Cable Sheave Shackle
Cable Sheave Shackle


Used for supporting a cable sheave or quadrant block in place at a manhole equipped with pulling-in irons.
  • Contains a two-part clevis made of high-strength structural steel, with two sets of sheave pin holes 1 3/8 in. (35mm) dia. for accommodating either a cable sheave or quadrant block
  • The load half has a forged steel hook that attaches to the pulling-in irons with a standard 1/2 in. (12mm) x 6 ft. ( 1.8 m) construction chain, while the support half has a shoulder eyebolt so you can tie it off to a support rope over the manhole
  • Will accommodate any 11 in., 20 in. or 26 1/2 in. cable sheave with a 1 3/8 in. hole size for  4 in. or 5 in. cable
  • Each shackle includes a 1 5/16 in. dia. sheave pin and can withstand working loads up to 10,000 lbs (4535kg)
  • Now included Safety Latch as required by OSHASelect the right GMP Sheave or Quadrant Block to accommodate your cable pulling needs, then choose a shackle from the table below to match the size


P/NCable Sheave SizeWeight
716433 in. (76mm)32 lbs. (14kg)
716444 in. (102mm)45 lbs. (20kg)
716455 in. (127mm)47 lbs. (21kg)
71716Replacement Pin 1 5/16 X 4" 5 lbs. (2.2kg)
71717Replacement Pin 1 5/16 X 5 " 6 lbs. (2.7kg)

Quadrant Blocks


Used to guide the pulling line or cable during underground cable placement or removal

• Consists of six cast aluminum sheaves supported in an aluminum frame to provide a bending radius of 24 in. (609mm)
• Each sheave has self-lubricating bushings for smooth movement and a long, maintenance-free life
• Available to accommodate 3 in. (84453), 4 in. (84454) or 5 in. (84455) cable diameters
• Each side plate has holes to insert a 1 1/4 in. (32mm) digging bar to prevent the block from being knocked into the manhole
• It can also be used with a cable sheave shaker, pulling frame, or jamb skid to suspend in the manhole as an alternative method.

P/NMaximum Cable SizeWeight
844533 in. (76mm)60 lbs (27kg)
844544 in. (102mm) 75 lbs (34kg)
844555 in. (127mm)90 lbs (40kg)

Cable Sheaves