2025 Ronstan Marine Catalogue - Catalog - Page 23
SPORTS BLOCKS
Series 40 Orbit
21
RF46100
RF46100M
RF46101
RF46102
RF46151
Stainless steel swivel
shackle head
RF46151A
Superior holding power
2 x 4mm (5/32”)
RF40001
2 x 4mm (5/32”)
RF9003-07
RF2454
RF2454B
RF4
RF615
4mm (5/32”) pin, suits RF46100 & RF46100M
2 x 5mm (3/16”)
0° or 90° stand-up
2 x 5mm (3/16”)
RF46100 & RF46100M - Stainless steel
swivel shackle head for unlimited
block rotation, and compatibility with
sharp fixing points.
Mainsheet fine tune systems on sportsboats
& small keelboats using RF6 or RF7 mainsheet
swivel cleat unit.
Control line applications on larger yachts.
Dinghy mainsheet systems.
Frame/cheeks: Toughened, glass fibre
reinforced nylon.
Shackle & head fitting (RF46100 & RF46100M): Grade
316 stainless steel.
Soft link: UV stabilised, multi-strand
SK78 Dyneema®.
Spinnaker and jib sheets on dinghies.
PRODUCT No.
DESCRIPTION
Ball Bearing
RF46100
RF46100M
RF46101
RF46102
RF46151
RF46151A
Single block, auto, swivel shackle head
Single block, manual, swivel shackle head
Single block, auto, Dyneema® link head
Single block, manual, Dyneema® link head
Cheek block, clockwise, auto
Cheek block, anti-clockwise, auto
PRODUCT No.
DESCRIPTION
Sheave: Anodised aluminium.
Ball bearings: High compression strength acetal.
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
40
40
40
40
40
40
9
9
9
9
9
9
4
4
-
175
175
175
175
175
175
500
500
500
500
500
500
38
38
35
35
36
36
1 9/16
1 9/16
1 9/16
1 9/16
1 9/16
1 9/16
5/16
5/16
5/16
5/16
5/16
5/16
5/32
5/32
-
385
385
385
385
385
385
1100
1100
1100
1100
1100
1100
1.3
1.3
1.2
1.2
1.3
1.3
M.W.L.
kg
B.L.
kg
WEIGHT
g
M.W.L.
lb
B.L.
lb
WEIGHT
oz
Accessories
RF4
RF2454
RF2454B
Swivel shackle base. Suits Series 40 & 55 Orbit Block™ Dyneema® links.
4.8mm (3/16”) diameter pin
Stand-up base, suits S40 Orbit Blocks™ - boot & saddle
Stand-up boot, suits S40 Orbit Blocks™ - boot only
250
500
30
550
1100
1.1
325
-
700
-
11
6
715
-
1540
-
0.4
0.2
Spare Parts - Dyneema® Links
RF9003-07
S40 single & 昀椀ddle Orbit Blocks™
RF45101, RF45501, RF45521, RF46101, RF46102
Spare Parts - Link Retainer Clips
RF40001
S40 single & 昀椀ddle Orbit Blocks™ (2 pack)
RF45101, RF45501, RF45521, RF46101, RF46102
© Michael Chittenden
