![]()
264
R
AT
CH
ET
Series 55
20:1
HOLDING POWER
Photo: Victor Kovalenko
Team Ronstan
- 470 World champions Malcolm Page & Mathew Belcher
RF56531
6511 RF5
SHEAVE DIAM. MAX. ROPE M.W.L.
B.L. WEIGHT SHEAVE DIAM. MAX. ROPE M.W.L.
B.L. WEIGHT
PRODUCT No. DESCRIPTION
mm
mm kg
kg
g
in.
in.
lb
lb
oz
Ratchet
RF56331
Triple, becket, adjustable cleat, auto, Dyneema
®
link head
55
10
750*
2
1500 345
2 5/32
3/8 1650*
2
3300 12.2
RF56331B Triple, underhung becket, adjustable cleat, auto, Dyneema
®
link head
55
10
750*
3
1500 349
2 5/32
3/8 1650*
3
3300 12.3
RF56511
Fiddle
*1
, becket, auto & manual, Dyneema
®
link head
55 + 35
10
250 750 108 2 5/32 + 1 3/8 3/8
550 1650 3.8
RF56531
Fiddle
*1
, becket, adjustable cleat, auto, Dyneema
®
link head
55 + 35
10
250 750 231 2 5/32 + 1 3/8 3/8
550 1650 8.6
*1
Fiddle sheave has a high load full contact bearing (ie. not ball bearing). Main sheave has two-stage, ball bearing.
*2
Total block load. Load on saddle/becket not to exceed 15% of block load. ie. MWL 117kg (257lb), BL
234kg (514lb). Suitable for 6:1 system at rated block load.
*3
Total block load. Load on underhung becket not to exceed 33% of block load. ie. MWL 250kg (700lb), BL 500kg (1100lb). Underhung becket suits attachment
of ‘piggyback’ block for creation of 7:1 or greater purchase.
RF56331B - Underhung becket is suitable for terminating the sheet,
or attachment of a ‘piggy back’ block for greater purchase*
3
. (See RF55410)
RF56331 - Low profile becket take-off under cleat arm*
2
.
RF56331
RF56331B
A
d
j
u
s
t
a
b
l
e
c
l
e
a
t
a
r
m
s
I
n
t
e
g
r
a
t
e
d
l
o
w
p
r
o
f
i
l
e
B
e
c
k
e
t
