2020 Ronstan Sailboat Hardware Catalogue - Page 21



SPORTS BLOCKS
Series 40 Orbit
19
© Michael Chittenden
RF45501
RF45511
RF45521
RF45531
RF45151
Becket link
3 x 4mm (5/32”)
Adjustable cleat arms
RF45151 - Base suits flat or curved
mounting surface.
Spinnaker sheets on dinghies, sportsboats
and small keelboats to 5m (16ft).
Stage 2 bearing: Glass fibre reinforced,
MoS2 impregnated nylon.
RF45511 & RF45531 - Lightweight
integrated Dyneema® becket link.
Sheave: Carbon fibre reinforced, PTFE impregnated
nylon.
Frame/cheeks: Toughened, glass fibre
reinforced nylon.
RF45130, RF45521 & RF45531 Composite C-Cleat™ and fairlead.
Ball bearings: High compression strength acetal.
PRODUCT No.
DESCRIPTION
SHEAVE
DIAM.
mm
MAX.
ROPE
mm
Ball Bearing
RF45151
RF45501
RF45511
RF45521
RF45531
Cheek block
Fiddle block*3, Dyneema® link head
Fiddle block*3, becket, Dyneema® link head
Fiddle block*3, adjustable cleat, Dyneema® link head
Fiddle block*3, becket, adjustable cleat, Dyneema® link head
40
40 + 22
40 + 22
40 + 22
40 + 22
9
9
9
9
9
*1 Total block load. Becket MWL 125kg (275lb), BL 250kg (550lb). Suitable for 3:1 system at rated block load.
*2 Line load through cleat not to exceed 125kg (275lb).
*3 Small fiddle block sheave has a high load full contact bearing (i.e. not ball bearing). Main sheave has 2-stage, ball bearing.
M.W.L.
kg
325
325
325*1
325*2
325*1&2
B.L.
kg
WEIGHT
g
SHEAVE
DIAM.
in.
MAX.
ROPE
in.
700
700
700
700
700
32
47
48
108
109
1 9/16
1 9/16 + 7/8
1 9/16 + 7/8
1 9/16 + 7/8
1 9/16 + 7/8
5/16
5/16
5/16
5/16
5/16
M.W.L.
lb
715
715
715*1
715*2
715*1&2
B.L.
lb
WEIGHT
oz
1540
1540
1540
1540
1540
1.1
1.7
1.7
3.8
3.8

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