Ronstan manufactures an extensive range of sheave boxes for use with rope and wire. Plain bearing sheaves are ideal for halyards and other applications where high static loads are likely to be encountered.
Specifications:
- Type of Block: Exit
- Sheave diameter: 30mm
- B.L.: 800kg
- M.W.L.: 375kg
- Max. Rope diameter: 8mm
- Weight: 45g
- Sheave Material: Nylatron - Grade 316 stainless steel housing
- Wire Ø: 4mm
- Fastener Ø: 5mm
- Qty. Fasteners: 6
Applications:
- Ideal for applications where lines (rope or wire) need to be led through decks, bulkheads or spars minimising friction and chafing
Specification Details (See image):
- A: 44mm
- B: 27mm
- C: 14mm
- D: 5mm
Smart VIP Price Promise
Our prices are very Smart at Smart Marine! Our Smart VIP Membership and committment to great deals makes sure of that, but if you find a lower price, tell us- we will match it!*

Price Promise Terms & Conditions
- Excludes limited time specials, clearances, non-stocked products, overseas websites, price comparison websites and eBay/TradeMe.
- Applies to identical products, in stock in NZ with pricing valid at time of price match request and purchase, with evidence supplied.
- Excluded Products: clearance, run-out, distress, damaged/soiled, parallel imported, non-stocks, trade quotes, commercial quantities, credit account holders, insurance claims, services, typos, overseas websites, price comparison websites, auction websites.
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