Ronstan Series 40 AP Block Single Cheek

Full name: RONSTAN SERIES 40 AP BLOCK SINGLE CHEEK
Mfg part #: RF41151
UPC: 9316800244331
SKU: 55206

$36.12 ~~$42.49~~

Backorder: ships once restocked by the manufacturer. We’ll email you if there’s a delay.

🚚 Free shipping over $100
30-day returns. Details

Secure checkout · prices verified at checkout

Genuine parts from authorized distributors. Questions? getboatparts@gmail.com

30-day returns

About this part

The Ronstan Series 40 AP Block Single Cheek is a genuine Ronstan part (manufacturer part # RF41151, UPC 9316800244331) in our Blocks range under Sailing. It's currently on backorder. Order now to reserve the next shipment. Shipping weight is about 0.2 lb.

Manufacturer description

Series 40 All Purpose Block - Single - Cheek

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.

Features:

Exceptionally high working loads
Low maintenance, long service life
Self-lubricating sheave
Mount with 3 x 5mm (3/16") fasteners (not supplied)

Applications:

Mainsheet
Halyard
Vang
Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8M(26')

Materials:

U.V. stabilized Acetal sheaves
Impact and U.V. resistant, fiber reinforced Nylon cheeks
Grade 316 stainless steel bearing race
Grade 316 stainless steel load strap and head fitting

Specifications:
Sheave Ø: 40mm(1-9/16")
Max. Rope Ø: 10mm(7/16")
M.W.L.: 400kg(880lbs)
B. L.: 1,000kg(2,200lbs)
Weight: 66g(2.3oz)