| Rated Load / Safe Working Load |
~ 160 tons |
“160” in “B300-160” likely denotes tonnage class |
| Sheave Diameter |
~ 36 to 44 inches |
Blocks in this tonnage range often use sheaves in that range |
| Number of Sheaves |
3 to 5 |
Depending on reeving configuration |
| Wire Rope Size |
~ 1 ⅛″ to 1 ¼″ |
Corresponds to the load and sheave dimensions |
| Side Plates & Frame |
Heavy steel, API 8C spec |
American Block builds to API 8C for these products |
| Compliance / Standards |
API Spec 8C (or better) |
Standard for hoisting / traveling block equipment |
| Bearing Type |
Roller or tapered bearings, grease-lubricated |
To handle radial loads and provide long life |
| Weight (Block Only, no hook, no extras) |
~ 7,000 to 11,000 lbs (≈ 3,200 to 5,000 kg) |
Depends on materials, sheave count, hook, etc. |
| Hook / Block-and-Hook Option |
May exist as a “block-&-hook” assembly |
Some units are integral block + hook combos |
| Wire Rope Groove |
Flame-hardened grooves |
To resist wear from the rope |
Arabic 
English 
Spanish