2025 Ronstan Marine Catalogue - Catalog - Page 59
KEELBOAT BLOCKS
Series 60 Orbit
57
22mm (7/8”)
RF69100
RF69110
RF69200
RF69108
RF69109
RF69000
RF69140
RF69151
RF69209
RF69109A
2 x 8mm (5/16”)
RF324
RF2433-09*3
Suits RF69100 & RF69110
3
4 x 6mm (1/4”)*
RF69110 removable becket pin allows lines
to be spliced prior to fitting.
Permanent and running backstay systems
on boats to 10m (33ft).
Primary mainsheet, halyard and spinnaker systems
on boats to 12m (40ft).
General control line and lead block
applications on larger yachts.
Secondary mainsheet and vang systems on
boats to 14m (46ft).
Cheek plates: Fully machined aluminium alloy.
PRODUCT No.
DESCRIPTION
Ball Bearing
RF69000
RF69100
RF69108
RF69109
RF69109A
RF69110
RF69140
RF69151
RF69200
RF69209
Sheave with balls & rollers
Single block, universal head
Halyard block, screw pin head
Strop block
Lashing block
Single block, becket, universal head
Stand-up block, 90 degree
Foot block, single
Double block, universal head
Strop block, double
Needle rollers: Torlon®.
Ball bearings: High compression strength
acetal (RF69109A: Torlon®).
Forged shackle: Grade 17-4PH stainless steel.
Head post: Grade 316 stainless steel.
Sheave: Aluminium alloy.
*1 10mm (3/8") is the maximum rope size if the hollow hub is to be used as a becket take-o昀昀.
*2 Bushed to 12mm (1/2") diameter.
*3 A4-80 DIN7991 grade fasteners recommended to achieve BL
SHEAVE
DIAM.
mm
MAX.
ROPE
mm
PIN
DIAM.
mm
60
60
60
60
60
60
60
60
60
60
12
12
12
12
12*1
12
12
12
12
12
8
9*2
8
8
-
M.W.L.
kg
1800
1800
1800
2400
1800
1800
1800
2250
2250
B.L.
kg
4000
4000
4000
6000
4000
4000*³
4000
4500
4500
WEIGHT
g
SHEAVE
DIAM.
in
MAX.
ROPE
in
PIN
DIAM.
in
M.W.L.
lb
B.L.
lb
WEIGHT
oz
65
260
160
148
160
290
398
190
436
281
2 3/8
2 3/8
2 3/8
2 3/8
2 3/8
2 3/8
2 3/8
2 3/8
2 3/8
2 3/8
1/2
1/2
1/2
1/2
1/2*1
1/2
1/2
1/2
1/2
1/2
5/16
3/8*2
5/16
5/16
-
3970
3970
3970
5290
3970
3970
3970
4960
4960
8820
8820
8820
13220
8820
8820*³
8820
9920
9920
2.3
9.2
5.6
5.2
5.7
10.2
14.0
6.7
15.4
9.9
