Product Description
Ropemaster 108RA Half-Sided Block – 8" Manganese Sheave
The Ropemaster 108RA Half-Sided Block is a compact yet rugged block designed for efficient rigging and lifting. Featuring an 8" work-hardening manganese steel sheave with Timken tapered roller bearings, it delivers smooth performance and long service life. Built for 1/2" to 5/8" wire rope, the 108RA is rated for a 6.25-ton working load limit and is engineered with a half-side frame to reduce weight without compromising strength.
Key Features:
- 8" manganese steel sheave maximizes wire rope and sheave life
- Timken tapered roller bearings for smooth, reliable operation
- Half-side design reduces block weight while maintaining durability
- Recessed sheave prevents rope from binding against block sides
- Quick-release draw pin for fast reeving and attachment changes
- Cast alloy steel sides built for demanding rigging environments
- Meets ASME B30.26-1 requirements
Specifications:
| Sheave Diameter | 8" |
|---|---|
| Wire Rope Range | 1/2" – 5/8" |
| Working Load Limit | 6.25 Tons |
| Weight | 28.7 lbs |
| A (Height) | 13.94" |
| B (Thickness) | 5.75" |
| C (Width) | 8.75" |
| D (Throat Bottom) | 1.25" |
| E (Inside Throat Width) | 2.56" |
| F (Yoke Width Above) | 2.25" |
| H (Throat Height Below) | 2.13" |
| J (Throat Height Above) | 1.32" |
| K (Yoke Bar Height) | 1.09" |
| L (Yoke Bar Width) | 1.25" |

Specifications
Safety Notice
Although Bishop Lifting strives to manufacture and sell the highest quality rigging and safety gear, use of the gear is dangerous if not used correctly by competent trained professionals. Bishop Lifting disclaims any liability resulting from the misuse of its rigging and safety gear. Please take a moment to more thoroughly review our disclaimer.
Bishop Lifting rigging and safety gear is only intended to be used by competent trained professionals. Misuse of the rigging and safety gear can result in serious injury up to and including loss of life. As such, Bishop Lifting disclaims liability for any misuse or incorrect product selection by our customers.
Rigging and safety gear purchased from Bishop Lifting should be used in strict accordance with all industry and OSHA standards. At no time should rigging or safety gear be used beyond its certified load ratings (aka Working Load Limits). Normal wear and tear should be expected with use of rigging and safety gear; therefore, all gear should be thoroughly inspected before each and every use. Worn or unsafe rigging and safety gear should never be used.