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Lewmar  |  SKU: LEW29901420BK

Lewmar 40mm Synchro Block Single Upstand B

Sale price $32.80 Regular price $59.95

Availability: Please give 24-36 business hours for our team to process your order. Once processed, lead time is 5-7 business days if item is in stock. Please call to check availability. Not available for expedited shipping. Usually Ships Within 20 Days


Pickup available at 1830 East Interstate 30

Usually ready in 24 hours

DELIVERY AND RETURN INFO
Please call us to confirm availability.


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.

Features

  • Lightweight
  • Very High Strength
  • Impact Resistant
  • Reduced Friction
  • Easy Maintenance
  • Optimised for hand control

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 part #: 29901420BK

Technical Description
309 lb
140 kg
1047 lb
475 kg
5.9 oz
170 g
3/8 in
10 mm
3 in
76 mm