Product Description
Ropemaster 513A Half-Sided Block – 13" Alloy Sheave
The Ropemaster 513A Half-Sided Block is engineered for reliable performance in heavy-duty rigging applications. Featuring a 13" alloy steel sheave with Timken tapered roller bearings, it provides smooth operation and long service life while keeping overall block weight minimized. Designed for 3/4" to 7/8" wire rope with a 15-ton working load limit, the 513A balances strength and portability thanks to its rugged half-sided cast alloy steel construction.
Key Features:
- 13" alloy sheave with Timken tapered roller bearings for smooth operation
- Half-side design reduces overall weight without sacrificing strength
- Recessed sheave prevents wire rope from binding against block sides
- Tool-free draw pin allows rapid reeving and attachment swaps
- Rugged cast alloy steel sides built for demanding environments
- Meets ASME B30.26-1 requirements
Specifications:
| Sheave Diameter | 13" |
|---|---|
| Wire Rope Range | 3/4" – 7/8" |
| Working Load Limit | 15 Tons |
| Weight | 63 lbs |
| A (Height) | 21.5" |
| B (Thickness) | 6" |
| C (Width) | 13.5" |
| D (Throat Bottom) | 2" |
| E (Inside Throat Width) | 2.75" |
| F (Yoke Width Above) | 2.75" |
| G (Throat Height) | 7.25" |
| H (Throat Height Below) | 2.88" |
| J (Throat Height Above) | 2.25" |
| K (Yoke Bar Height) | 1.5" |
| L (Yoke Bar Width) | 1.63" |

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.