Description
Description
50mm Quad Dynamic Block With Becket.
The A2057 is a high performing ball bearing block, designed to eliminate friction and allow rope to run at great speeds.
Ideal for use on Keelboats and Catamarans for a range of applications from jib sheet to mainsheet systems, to backstay tensioning systems and everything in between. The 50mm quad is a great choice for systems which require a larger purchase system with minimal friction.
Our Part # ALL-A2057 | Mfr. Part # A2057
Features
Features
- Bearings: Dynamic Blocks feature our patented bearing system which uses twin rows of stainless-steel ball bearings running on a stainless-steel rail. This provides a superior load-carrying ability and longevity when compared to other bearing systems available on the market.
- Swivel Lock: The A2056 comes with a removable swivel lock moulding. When installed, the shackle can be locked in 90-degree orientations. When removed, the attachment shackle can spin freely.
- Becket:Â A large central hole not only reduces the overall weight of the block but also offers a rope friendly attachment, perfect as a tie-off point when being used in a cascade system.
Technical Information
Technical Information
Description | Imperial | Metric |
---|---|---|
Breaking load | 1764.0 lbs. | 950.0 kg |
Length | 5 1/3 in | 136.0 mm |
Maximum line diameter | 3/8 in | 10.0 mm |
Maximum working load | 1036.35 lbs. | 470.0 kg |
Weight | 9.66 oz | 274.0 g |
Shackle pin | 3/16 in | 5.0 mm |