Allen Brothers 40mm Dynamic Block with Swivel Head
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 Block with Swivel Head
Allen Brothers 40mm Dynamic Block with Swivel Head
40mm Single Dynamic Swivel Block
The 40mm Single Dynamic Swivel Block is a high-performance 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.
The 360° swivel head ensures the block aligns naturally with changing load directions, providing smooth operation and reducing line twist.
Features:
- Single-sheave design for smooth and efficient line handling
- 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 4mm shackle for flexible attachment and optimal load alignment
- Shackle is load-rated higher than the block for added reliability
- Large Central Becket Hole for use as a tie-off point in purchase systems
- Specific becket variations are also available
- Low-friction, fast-rolling performance for smooth operation under load
- Designed for reliable performance in demanding marine environments
- Suitable for applications requiring efficient line management and unrestricted block rotation
Technical Description
| Accessories | Swivel |
| Bearing Type | Dynamic |
| Configuration | Single |
| Length | 83.38 mm |
| Height | 82 mm |
| Maximum Line Diameter | 10 mm |
| Breaking Load | 780 kg |
| Maximum Working Load | 240 kg |
| Sheave Material | Acetal |
| Sheave Diameter | 40 mm |
| Pin Size | 4 mm |
| Weight | 54 g |
Allen Brothers 40mm Dynamic Block with Swivel Head
40mm Single Dynamic Swivel Block
The 40mm Single Dynamic Swivel Block is a high-performance 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.
The 360° swivel head ensures the block aligns naturally with changing load directions, providing smooth operation and reducing line twist.
Features:
- Single-sheave design for smooth and efficient line handling
- 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 4mm shackle for flexible attachment and optimal load alignment
- Shackle is load-rated higher than the block for added reliability
- Large Central Becket Hole for use as a tie-off point in purchase systems
- Specific becket variations are also available
- Low-friction, fast-rolling performance for smooth operation under load
- Designed for reliable performance in demanding marine environments
- Suitable for applications requiring efficient line management and unrestricted block rotation
Technical Description
| Accessories | Swivel |
| Bearing Type | Dynamic |
| Configuration | Single |
| Length | 83.38 mm |
| Height | 82 mm |
| Maximum Line Diameter | 10 mm |
| Breaking Load | 780 kg |
| Maximum Working Load | 240 kg |
| Sheave Material | Acetal |
| Sheave Diameter | 40 mm |
| Pin Size | 4 mm |
| Weight | 54 g |
