Allen Brothers 40mm Dynamic Triple Block
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 40mm Dynamic Triple Block
Allen Brothers 40mm Dynamic Triple Block
40mm Triple Dynamic Swivel Block
The 40mm Triple Dynamic Swivel Block is a high-performance, triple-sheave pulley designed for keelboats and dinghies. Manufactured from durable, lightweight glass-loaded nylon and featuring Allen's advanced Dynamic Bearing Technology, it delivers smooth, efficient line handling for mainsheets, jib sheets, spinnaker sheets, and control line systems.
Ideal for applications requiring increased mechanical advantage, such as vangs, backstays, cunningham systems, and other high-load purchase arrangements.
Features:
- Triple-sheave design for high-purchase systems and increased mechanical advantage
- Manufactured from durable, lightweight glass-loaded nylon
- Ideal for mainsheet, jib sheet, spinnaker sheet, and keelboat control line applications
- Patented Dynamic Bearing System featuring twin rows of stainless-steel ball bearings running on a stainless-steel rail
- Caged ball bearings for reduced friction and enhanced rolling performance
- Superior load-carrying capability and long service life
- 360° Swivel Head fitted with a 5mm shackle for flexible attachment and optimal load alignment
- Shackle is load-rated higher than the block for added reliability
- Swivel Lock System allows the shackle to be locked in 90° orientations when required
- Swivel lock can be removed easily by undoing the shackle and removing it from the swivel pin
- Low-friction, fast-rolling performance for smooth operation under load
- Designed for reliable performance in demanding marine environments
- Ideal for high-load control systems requiring compact, efficient purchase arrangements
Technical Description
| Accessories | Swivel |
| Bearing Type | Dynamic |
| Configuration | Triple |
| Length | 93.35 mm |
| Height | 92 mm |
| Width | 60 mm |
| Maximum Line Diameter | 10 mm |
| Breaking Load | 1400 kg |
| Maximum Working Load | 750 kg |
| Sheave Material | Acetal |
| Sheave Diameter | 40 mm |
| Pin Size | 5 mm |
| Weight | 159 g |
Allen Brothers 40mm Dynamic Triple Block
40mm Triple Dynamic Swivel Block
The 40mm Triple Dynamic Swivel Block is a high-performance, triple-sheave pulley designed for keelboats and dinghies. Manufactured from durable, lightweight glass-loaded nylon and featuring Allen's advanced Dynamic Bearing Technology, it delivers smooth, efficient line handling for mainsheets, jib sheets, spinnaker sheets, and control line systems.
Ideal for applications requiring increased mechanical advantage, such as vangs, backstays, cunningham systems, and other high-load purchase arrangements.
Features:
- Triple-sheave design for high-purchase systems and increased mechanical advantage
- Manufactured from durable, lightweight glass-loaded nylon
- Ideal for mainsheet, jib sheet, spinnaker sheet, and keelboat control line applications
- Patented Dynamic Bearing System featuring twin rows of stainless-steel ball bearings running on a stainless-steel rail
- Caged ball bearings for reduced friction and enhanced rolling performance
- Superior load-carrying capability and long service life
- 360° Swivel Head fitted with a 5mm shackle for flexible attachment and optimal load alignment
- Shackle is load-rated higher than the block for added reliability
- Swivel Lock System allows the shackle to be locked in 90° orientations when required
- Swivel lock can be removed easily by undoing the shackle and removing it from the swivel pin
- Low-friction, fast-rolling performance for smooth operation under load
- Designed for reliable performance in demanding marine environments
- Ideal for high-load control systems requiring compact, efficient purchase arrangements
Technical Description
| Accessories | Swivel |
| Bearing Type | Dynamic |
| Configuration | Triple |
| Length | 93.35 mm |
| Height | 92 mm |
| Width | 60 mm |
| Maximum Line Diameter | 10 mm |
| Breaking Load | 1400 kg |
| Maximum Working Load | 750 kg |
| Sheave Material | Acetal |
| Sheave Diameter | 40 mm |
| Pin Size | 5 mm |
| Weight | 159 g |
