Lewmar, 40mm Control Single Block

Lewmar, 40mm Control Block, Single
SKU: 221715
Mfg# 29901421BK
LFS# LMR29901421
UNIT: Each
Type: SingleSize: 40mmWorking Load Limit: 528 lb.Weight: 1.83 oz.Max Line Size: 3/8"
In Stock - Ships out in 1 Business Day


Lewmar, 40mm Control Single Block

40mm Control Single Blocks are ideal for use with hand-held loads. Lewmar's Control Blocks feature lightweight, performance load-bearing capacity. MRT (Metal Replacement Technology) and a stainless steel central race and balls provide a weight advantage, while Long Fibre Technology offers exceptional strength and durability. The open design allows sand and salt to be flushed out easily, keeping maintenance simple.

  • Optimized for hand control
  • Lightweight & Very High Strength
  • Impact Resistant
  • Reduced Friction
  • Easy Maintenance
Applications (Ball bearing blocks are typically used for medium and dynamic loads in):Control line applications, Mainsail sheets for dinghies and keelboats, Spinnaker sheets, barber haulers, Genoa sheets, Dinghy applications.

Manufacturer: Lewmar Marine Ltd.

Category: Blocks



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All Ladders have a Four (4) year Structural Warranty.


  • All returns must be started within 30 days of receipt of the order.
  • Manufacturer defects reported within 30 days of receipt will be supplied a pre-paid label for return shipping upon approval.
  • Please contact Go2marine LFS Marine and Outdoor for Manufacture Defects, Returns and help with Warranties.