2025 Ronstan Marine Catalogue - Catalog - Page 69
KEELBOAT BLOCKS
Series 200 Orbit
67
© B.Sellier - Wind4Production
RF209109A
Exceptionally high strength-to-weight ratio.
Captive ball bearings for side thrust loads.
Side cheeks incorporating head structure and hub are
precision machined as a single part from solid alloy,
leaving material only where it contributes to the load
carrying capacity of the block and eliminating the need
for additional fasteners.
PRODUCT No.
DESCRIPTION
Ball Bearing
RF209109A
Lashing block, single
Central hole can be used as a becket take-off/dead end
in a 3:1 purchase system.
Running backstay systems on boats
larger than 34m (111ft).
Mainsheet and genoa sheet systems on boats larger
than 34m (111ft).
Cheek plates: Fully machined aluminium alloy.
Spinnaker systems and halyards on boats
larger than 33m (108ft).
Needle rollers: Torlon®.
Sheave: Aluminium alloy.
Ball bearings: Torlon®.
SHEAVE
DIAM.
mm
MAX.
ROPE
mm
PIN
DIAM.
mm
M.W.L.
kg
B.L.
kg
WEIGHT
g
SHEAVE
DIAM.
in
MAX.
ROPE
in
PIN
DIAM.
in
M.W.L.
lb
B.L.
lb
WEIGHT
oz
200
28
-
15000
40000
3430
7 7/8
1 1/8
-
33000
88000
123.0
