Allen Brothers Low Profile Sheave Box Medium
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.
Low Profile Sheave Box – Medium
Designed for installation in masts and booms, this Medium Low Profile Sheave Box features a compact cast aluminium body that hooks securely into place. The lower lip sits inside the mast while the top is fixed with a rivet or screw, creating a strong, low-profile installation. The sheave is permanently fitted for a simple and reliable design.
Available with a choice of sheave options, it is suitable for a wide range of marine applications requiring smooth and efficient rope or wire routing.
Key Features:
- Low-profile cast aluminium body
- Hook-in design for easy mast or boom installation
- Suitable for rope and wire applications
- Durable and corrosion-resistant construction
- Choice of sheave materials and bearing types
- Compact, reliable design
- Ideal for marine mast and boom applications
Sheave Options:
- Acetal Plain Bearing: Lightweight, low-maintenance option with a maximum working load of up to 400kg. Suitable for rope and wire.
- Stainless Steel Dynamic: Features patented Dynamic Bearing Technology for exceptionally low friction and smooth operation. Suitable for fast-running systems with a maximum working load of up to 450kg. Suitable for rope and wire.
Technical Description
| Breaking Load | 900 kg |
| Fixing Hole Diameter | 5 mm |
| Height | 50 mm |
| Length | 85 mm |
| Maximum Line Diameter | 9 mm |
| Maximum Working Load | 400 kg |
| Sheave Diameter | 38 mm |
| Sheave Material | Acetal / Stainless Steel |
| Sheave width | 6 mm |
| Slot Size | 58 X 13 |
| Width | 15 mm |
| Weight | 68 g |
Low Profile Sheave Box – Medium
Designed for installation in masts and booms, this Medium Low Profile Sheave Box features a compact cast aluminium body that hooks securely into place. The lower lip sits inside the mast while the top is fixed with a rivet or screw, creating a strong, low-profile installation. The sheave is permanently fitted for a simple and reliable design.
Available with a choice of sheave options, it is suitable for a wide range of marine applications requiring smooth and efficient rope or wire routing.
Key Features:
- Low-profile cast aluminium body
- Hook-in design for easy mast or boom installation
- Suitable for rope and wire applications
- Durable and corrosion-resistant construction
- Choice of sheave materials and bearing types
- Compact, reliable design
- Ideal for marine mast and boom applications
Sheave Options:
- Acetal Plain Bearing: Lightweight, low-maintenance option with a maximum working load of up to 400kg. Suitable for rope and wire.
- Stainless Steel Dynamic: Features patented Dynamic Bearing Technology for exceptionally low friction and smooth operation. Suitable for fast-running systems with a maximum working load of up to 450kg. Suitable for rope and wire.
Technical Description
| Breaking Load | 900 kg |
| Fixing Hole Diameter | 5 mm |
| Height | 50 mm |
| Length | 85 mm |
| Maximum Line Diameter | 9 mm |
| Maximum Working Load | 400 kg |
| Sheave Diameter | 38 mm |
| Sheave Material | Acetal / Stainless Steel |
| Sheave width | 6 mm |
| Slot Size | 58 X 13 |
| Width | 15 mm |
| Weight | 68 g |

