• Ronstan Series 40 Orbit BB Cheek Block
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Ronstan

Ronstan Series 40 Orbit BB Cheek Block

Ronstan Series 40 Orbit BB Cheek Block

OM-RONSTAN-SERIES40ORBIT-RF48151

$58.13
$68.39 $58.13
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Overview

Manage sailboat sheets and control lines with the Ronstan Series 40 Orbit BB cheek block. A two-stage bearing system keeps friction low through the working load range, while reinforced nylon cheeks keep the assembly light and compact.

Key features

  • Ball bearings reduce friction to help ease line trimming.
  • A secondary full-contact bearing maintains low-friction operation as working loads increase.
  • Toughened, glass fiber reinforced nylon cheeks combine low weight with strength.
  • The low-profile shape offers a compact block for onboard line systems.
  • Applications include sheet handling, halyards, vangs, backstays and control lines.

Specifications

  • Brand: Ronstan
  • Series: 40 Orbit
  • Configuration: Cheek block
  • Bearing type: Two-stage ball bearing system
  • Cheek material: Toughened, glass fiber reinforced nylon
  • Sheave diameter: 1-9/16 inches
  • Maximum rope diameter: 3/8 inch
  • Maximum working load: 880 lb
  • Breaking load: 1760 lb
  • Weight: 1.2 oz

Good to know

Application guidance covers mainsheets and spinnaker sheets on dinghies, off-the-beach catamarans and sportsboats to 8 m (26 ft). It also lists halyard, vang and backstay use on boats to 9 m (30 ft), and control lines on larger yachts.

Specifications

BrandRonstan
Manufacturer part #RF48151
UPC9316800629152
Boxed dimensions4 x 2 x 1 in
Shipping weight0.1 lb

Shipping & returns

Free standard shipping

Standard shipping is free on every U.S. order — no minimum. Need it faster? Faster delivery options are available at checkout for qualifying orders. In-stock orders ship quickly with tracking; oversized and freight items may ship separately and can take a little longer. International rates are calculated at checkout.

30-day returns

Request a return within 30 days of delivery. Authorized returns are subject to a 15% restocking fee. Return shipping is paid by the buyer; items must be new and in original packaging. See our refund policy.

Genuine products

We source from authorized U.S. distributors. Every product is new, genuine and covered by the manufacturer warranty.

Genuine products

Genuine products, full warranty.

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