2020 Ronstan Sailboat Hardware Catalogue - Page 35



SPORTS BLOCKS
Series 55 Orbit
RF55510
33
RF55530
Adjustable cleat arms
0° or 90° stand-up
RF9004-08
RF9004-09
RF2455
RF2455B
RF9005-10
2 x 6mm (1/4”)
RF50001
RF50002
RF50003
Integrated low
profile becket
RF150
4.8mm (3/16”) pin.
RF55530 - Composite C-Cleat™ and fairlead.
Ultra-low profile integrated hollow hub becket.
Swivel shackle head for unlimited block rotation.
Mainsheet and vang systems on dinghies,
sportsboats and small keelboats to 9m (30ft).
Sheave: Carbon fibre reinforced, PTFE impregnated
nylon.
Frame/cheeks: Toughened, glass fibre
reinforced nylon.
Ball bearings: High compression strength acetal.
Swivel shackle head fitting:
Grade 316 stainless steel.
Stage 2 bearing: Carbon fibre reinforced,
PTFE impregnated nylon.
Rope link: UV stabilised, multi-strand
SK78 Dyneema®.
Control line applications on larger yachts.
PRODUCT No.
DESCRIPTION
Ball Bearing
RF55510
Fiddle block*1, becket, swivel shackle head
RF55530
Fiddle block*1, becket, adjustable cleat, swivel shackle head
Accessories
RF2455
RF2455B
Stand-up base, suits S55 Orbit Blocks™ - boot & saddle
Stand-up boot, suits S55 Orbit Blocks™ - boot only
SHEAVE
DIAM.
mm
MAX. PIN
ROPE DIAM.
mm
mm
M.W.L.
kg
B.L. WEIGHT
kg
g
SHEAVE
DIAM.
in.
MAX. PIN
ROPE DIAM.
in.
in.
55 + 35
55 + 35
10
10
5
5
500*2
500*2
1000
1000
101
237
2 5/32 + 1 3/8
2 5/32 + 1 3/8
3/8
3/8
3/16
3/16
-
-
-
500
-
1000
-
26
11
-
-
-
Dyneema® Links
RF9004-08
Link to suit S55 single & fiddle Orbit Blocks™
RF9004-09
Link to suit S55 9:1 mainsheet system (see page 30)
RF9005-10
Link to suit S55 double & triple Orbit Blocks™
Blocks Suited
RF55101, RF55111, RF55501, RF55511, RF55521, RF55531, RF56101
Connecting RF45201 to RF56330B
RF55201, RF55301
Link Retainers Clips (2 pack)
RF50001
Clip to suit S55 single & fiddle Orbit Blocks™
RF50002
Clip to suit S55 double & triple Orbit Blocks™
RF50003
Clip to suit S55 triple Orbit Blocks™
Blocks Suited
RF55101, RF55111, RF55501, RF55511, RF55521, RF55531, RF56101
RF55201
RF55301
*1 Small fiddle block sheave has a high load full contact bearing (i.e. not ball bearing). Main sheave has 2-stage, ball bearing.
*2 Line load through cleat not to exceed 175kg (385lb).
M.W.L.
lb
B.L. WEIGHT
lb
oz
1100*2 2200
1100*2 2200
3.6
8.4
1100
-
0.9
0.4
2200
-

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