Ronstan Marine Systems DivisionRonstan Marine Systems Division
 
All Purpose Blocks
 

Series 60mm

Range Information | Applications | Materials | Related Items

Smart Features
  •  Exceptionally high working loads
  •  Low maintenance, long service life
  •  Full stainless steel structure
  •  Self-lubricating sheave

 

   
Product No.
Desc.
Sheave ØMax. Rope ØMax. Cable ØPin ØM.W.L.B. L.Weight  
  mmmmmmmmkgkgg  
 RF856 RF856 > Fiddle, universal head 

60 + 31

12

-

6.4

1000

2000

325

 
 RF857 RF857 > Fiddle, becket, universal head 

60 + 31

12

-

6.4

1000

2000

335

 
 RF858 RF858 > Single, snap shackle head 

60

12

-

6.4

1000

2000

275

 
 RF867 RF867 > Double, becket, universal head 

60

12

-

6.4

1000

2000

405

 
 RF868 RF868 > Single, universal head 

60

12

-

6.4

1000

2000

240

 
 RF868AW RF868AW > Single, universal head, alum. rope/wire sheave 

60

12

5

6.4

1000

2000

285

 
 RF869 RF869 > Single, becket, universal head 

60

12

-

6.4

1000

2000

265

 
 RF870 RF870 > Triple, universal head 

60

12

-

6.4

1000

2000

455

 
 RF871 RF871 > Single, cheek 

60

12

-

-

800

1600

325

 
 RF872 RF872 > Single, stand-up  

60

12

-

-

1000

2000

325

 
 RF875 RF875 > Fiddle, adj. cleat, universal head 

60 + 31

12

-

6.4

550

2000

535

 
 RF876 RF876 > Fiddle, becket, adj. cleat, universal head 

60 + 31

12

-

6.4

550

2000

545

 
 RF879 RF879 > Double, cheek 

60

12

-

-

800

1600

380

 
 RF880 RF880 > Single, bolt head 

60

12

-

-

1000

2500

193

 
 RF1156 RF1156 > Single, becket, cleat, universal head 

60

12

-

6.4

750

2000

505

 
 RF1160 RF1160 > Triple, becket, cleat, universal head 

60

12

-

6.4

1000

2000

690

 
 RF1174 RF1174 > Fiddle, snap shackle head, cam, becket 

60 + 48

12

-

-

950

2000

670

 

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Range Information
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 cruising and racing. For ultimate strength and durability cheek plates and load straps are made from grade 316 stainless steel . Cheek plates have a black chrome finish and are flared at the rope entry and exit points to minimise rope chafe.

    
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Applications
  • Mainsheet, vang, backstay, halyard and spinnaker sheet applications on boats to 13m (43ft)
  • General purpose and multiple purchase tackle systems on larger yachts
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Materials
  • Grade 316 stainless steel bearing race
  • Grade 316 stainless steel load straps
  • Black chromed grade 316 stainless steel cheeks
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