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Ronstan

Series 40 All Purpose Cheek Block-1 (fibre reinforced cheeks)

Series 40 All Purpose Cheek Block-1 (fibre reinforced cheeks)

$77.46 AUD
$77.46 AUD
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Shipping calculated at checkout.

All purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing.

Can be mounted on masts and booms using the curved surface adapter. Can be stacked to create a double version, but no more than 60% of the rated working load should be applied to the upper sheave. Stackable with Ronstan Series 40 deck organisers.

Features
  • Exceptionally high working loads.
  • Low maintenance, long service life.
  • Self-lubricating sheave.
Applications
  • Mainsheet
  • Halyard
  • Vang
  • Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft)
Specifications
Type of Block Cheek/Foot
B.L. (kg) 1000
M.W.L. (kg) 400
Max. Rope diameter (mm) 12
Weight (g) 65
Fastener √ò (mm) 6
Qty. Fasteners 3
Notes: Component parts available separately. Contact us for availabilty.
Materials
  • U.V. stabilised Acetal sheaves
  • Impact and U.V. resistant, fibre reinforced Nylon cheeks
  • Grade 316 stainless steel bearing race
  • Alloy cheek plates
Variants
Product No Sheave Dia mm (in) Max. Rope Dia mm (in) Working Load kg (lb) Break Load kg (lb) Weight g (oz) Fasteners mm (in)
RF41811 40 (1 9/16) 12 (1/2) 400 (880) 1000 (2200) 65 (2.3) -
RF41821 40 (1 5/8) 12 (1/2) 500 (1100) 1000 (2200) 101 (3.6) 6 (1/4)
RF41831 40 (1 5/8) 12 (1/2) 500 (1100) 1000 (2200) 142 (5) 6 (1/4)
RF41841 40 (1 5/8) 12 (1/2) 500 (1100) 1000 (2200) 185 (6.5) 6 (1/4)

Single sheave cheek block with aluminium cheeks. Requires 3 x 6mm (1/4") fasteners.

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