UG-73 Underground Block
Can be used at the edge of a manhole or anchored in a vault
The UG-73 underground block is ideal for underground construction.
Key Features
Design
Can be mounted on the edge of a manhole or anchored in a vault.
Configuration
Three sheave configuration. Available in nylon sheaves. Net weight 65 lbs.
Sizing
Sheave Dimensions: 7 in. OD x 4-3/4 in. rim width; Accommodates up to 4 in. diameter cable.

All Specifications
UG-73 Underground Block
SPECIFICATIONS
Model No. | Sheave Size, In. | No. of Sheaves | Effective Radius, In. |
Max O.D. of Cable, In. |
Max Working Load, Lbs | Approx. Weight, lbs. |
UG-73-PG-A | 7 x 4 3/4 | 3 | 16 7/16 | 4 | 12,500 | 65 |
UG-103-PG-A | 10 x 7 1/4 | 3 | 21 3/4 | 6 | 10,000 | 140 |
UG-104-PG | 10 x 7 x 1/4 | 4 | 27 13/16 | 6 | 17,500 | 250 |
UG-104-PG | 10 x 7 1/4 | 4 | 35 13/16 | 6 | 17,500 | 250 |