Allen Brothers 20MM Dynamic Back To Back
Availability: Please contact us to confirm availability or discuss item replacements. Please note that certain products may have an estimated arrival time of 30 days and are not available for expedited shipping.
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 Back To Back
Allen Brothers 20MM Dynamic Back To Back
20mm Back To Back Dynamic BlockThe 20mm Back To Back Dynamic 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.
Key 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
- 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 applications requiring reliable control of multiple lines in opposing directions
Technical Description
| Accessories | None |
| Bearing type | Dynamic |
| Breaking load | 540 kg |
| Configuration | Back to Back |
| Length | 52 mm |
| Maximum line diameter | 6 mm |
| Maximum working load | 115 kg |
| Sheave diameter | 20 mm |
| Weight | 18 g |
Allen Brothers 20MM Dynamic Back To Back
20mm Back To Back Dynamic BlockThe 20mm Back To Back Dynamic 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.
Key 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
- 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 applications requiring reliable control of multiple lines in opposing directions
Technical Description
| Accessories | None |
| Bearing type | Dynamic |
| Breaking load | 540 kg |
| Configuration | Back to Back |
| Length | 52 mm |
| Maximum line diameter | 6 mm |
| Maximum working load | 115 kg |
| Sheave diameter | 20 mm |
| Weight | 18 g |
