Fiber Optic Sheave & Shackle

This new sheave and shackle, or "bicycle wheel", combination is designed to accommodate the special handling needs of pulling fiber optic cable. Among the unique features are a lightweight design, one-size shackle and the reduction of loose parts.

• 32-in. (81 cm) and 40-in. (102 cm) sizes are split to accommodate less than 32-in. diameter manhole

• Sheaves are lightweight aluminum construction with self-lube bearings

• Captivating pins on shackles prevent cable damage when not under tension

• For overhead applications 24-in. (61 cm) sheave with shackle provides generous bending radius for fiber optic cable up to .6 in. (15 mm) diameter

• All removable hardware is retained for security

The new sheaves are available in three sizes to accommodate the bending radius of the most common sizes of fiber optic cable; a 24-inch sheave, 32-inch, and 40-inch split sheaves. All components are permanently attached to the shackle, eliminating any concern about loose or lost parts.

Extruded aluminum replaces steel wherever practical. The new components weigh about half as much as their all-steel counterparts, improving handling and maneuverability without sacrificing structural strength or integrity. The 40-in. (102 cm) sheave, for example, weighs just 23 lb (10 kg). Likewise, the 32-in. (81 cm) sheave weighs just 20 lb (9 kg), and the 24-in. (61 cm) just 9 lb (4 kg).

Both an underground and aerial shackle is available. The underground shackle is uniquely designed with a moveable anti-pinch pin to accommodate all three sheave sizes. Both are designed to be lightweight, the underground shackle weighs just 20 lb (9 kg) and the aerial shackle just 16 lb (7 kg).

Ordering Information

P/N	Description	Weight

71548	Underground Fiber Optic Shackle (requires Fiber Optic Sheave)	20 lbs. (9 kgs)
71549	Overhead Fiber Optic Shackle with 24-in. (61 cm) Fiber Optic Sheave	29 lbs. (13 kgs)
71550	24-in. (61 cm) Fiber Optic Sheave only	13 lbs. (6 kgs)
71551	Underground 32-in. (81 cm) Split Fiber Optic Sheave only	18 lbs. (8 kgs)
71552	Underground 40-in. (102 cm) Split Fiber Optic Sheave only	30 lbs. (17 kgs)
71554	Overhead Fiber Optic Shackle (Requires 24-in. Fiber Optic Sheave)	16 lbs. (7 kgs)
71560	Underground 24-in. (61 cm) Fiber Optic Sheave & Shackle Assembly - working-load: 2,000 lbs.	33 lbs. (15 kgs)
71561	Underground 32-in. (81 cm) Split Fiber Optic Sheave & Shackle Assembly - working-load: 1,250 lbs.	38 lbs. (17 kgs)
71562	Underground 40-in. (102 cm) Split Fiber Optic Sheave & Shackle Assembly - working-load: 1,250 lbs.	50 lbs. (23 kgs)

Click on image above for a larger view of the Fiber Optic Sheave & Shackle

29 & 64

24-in. Overhead Fiber Optic Sheave and Shackle assembly shown (P/N 71549).

General Machine Products Co. 3111 Old Lincoln Highway Trevose, PA 19053 USA LOGO