Allen Brothers 20mm Dynamic Block High Load Back To Back
Pickup available at 1830 East Interstate 30
Usually ready in 24 hours
Shipping and Delivery
Free shipping for orders of $98 or more (US Continental)
- Free shipping for orders of $750 or more (International)
- Add 3 business days to the standard shipping time for USPS deliveries.
- UPS and FedEx Ground usually take 2 to 5 business days for in-stock orders.
- UPS and FedEx deliver on Saturdays only for Friday overnight shipments, which may incur an extra
charge. - Orders that apply for free shipping will be delivered between 8 and 10 business days.
- International customers will be responsible for any applicable import duties,fees, or taxes.
- Oversized items like whisker poles, spinnaker poles, and tracks over 7 feet require freight shipping, with an estimated cost of $500 depending on the destination.These orders must be delivered to a
commercial address, such as a marina, yacht club, or boatyard where your sailboat is located.
A recipient must be present to sign for the delivery upon arrival,For more info, Click Here.
Allen Brothers 20mm Dynamic Block High Load Back To Back
20mm Back-to-Back High Load Block
The 20mm Back-to-Back High Load Block features opposing sheaves that allow two control lines to run at up to 180° to each other. A robust stainless-steel side strap and reinforced nylon mouldings keep the block securely together, even under high opposing loads.
Features:
- Opposing sheaves for control lines running up to 180° apart
- Strong stainless-steel side strap and nylon mouldings for maximum durability
- Remains secure under high opposing loads
- High Load Stainless-Steel Sheaves with a slight V-profile for use with both wire and Dyneema
- Reduced sheave deformation under high static loads for improved performance and durability
- Lower friction and higher working loads compared to standard acetal sheaves
- Patented Dynamic Bearing System with twin rows of stainless-steel ball bearings running on a stainless-steel rail for smooth operation, high load capacity, and long service life
- Integrated Becket with a large central rivet, providing a lightweight and rope-friendly attachment point for cascade systems
- Ideal for demanding applications requiring reliable control of multiple lines in opposing directions and under high loads
Technical Description
| Accessories | None |
| Bearing Type | High Load |
| Configuration | Back to Back |
| Maximum Line Diameter | 6 mm |
| Maximum Working Load | 300 kg |
| Breaking Load | 540 kg |
| Length | 52 mm |
| Sheave Diameter | 20 mm |
| Weight | 32 g |
Allen Brothers 20mm Dynamic Block High Load Back To Back
20mm Back-to-Back High Load Block
The 20mm Back-to-Back High Load Block features opposing sheaves that allow two control lines to run at up to 180° to each other. A robust stainless-steel side strap and reinforced nylon mouldings keep the block securely together, even under high opposing loads.
Features:
- Opposing sheaves for control lines running up to 180° apart
- Strong stainless-steel side strap and nylon mouldings for maximum durability
- Remains secure under high opposing loads
- High Load Stainless-Steel Sheaves with a slight V-profile for use with both wire and Dyneema
- Reduced sheave deformation under high static loads for improved performance and durability
- Lower friction and higher working loads compared to standard acetal sheaves
- Patented Dynamic Bearing System with twin rows of stainless-steel ball bearings running on a stainless-steel rail for smooth operation, high load capacity, and long service life
- Integrated Becket with a large central rivet, providing a lightweight and rope-friendly attachment point for cascade systems
- Ideal for demanding applications requiring reliable control of multiple lines in opposing directions and under high loads
Technical Description
| Accessories | None |
| Bearing Type | High Load |
| Configuration | Back to Back |
| Maximum Line Diameter | 6 mm |
| Maximum Working Load | 300 kg |
| Breaking Load | 540 kg |
| Length | 52 mm |
| Sheave Diameter | 20 mm |
| Weight | 32 g |

