2025 Ronstan Marine Catalogue - Catalog - Page 19
SPORTS BLOCKS
Series 40 Orbit
17
RF48109
RF48209
RF48100
RF48109HL
RF48140
RF48151
2 x 5mm (3/16”)
RF48109 and RF48109HL
Cheek plates rotate to
open block
RF48000
6mm
(1/4”)
RF615A
4mm (5/32”) pin,
suits swivel blocks
2-stage ball bearing system.
RF48100, RF48109, RF48209 & RF48109HL - integrated
becket.
RF48109 & RF48109HL can be opened and used as a
snatch block.
RF48100 stainless steel shackle head for unlimited
block rotation, and compatibility with sharp fixing
points.
PRODUCT No.
DESCRIPTION
Ball Bearing
RF48000
RF48100
RF48109
RF48140
RF48151
RF48209
Sheave, captive BB, 15.5mm (5/8”) width
Single block, becket hub, swivel shackle head
Single block, becket hub, lashing head
Stand-up block, swivel head
Cheek block
Double block, becket hub, lashing head
High Load Stainless Steel Sheave
RF48000HL
Sheave, captive HHL, 15.5mm (5/8”) width
RF48109HL
Single block HHL, lashing hub and becket option
2 x 6mm (1/4”)
RF48000HL
DSH-4GRY
6mm
(1/4”)
DSH-6GRY
Suits RF48109
DSH-4GRY
4mm (5/32”) soft shackle,
suits RF48109
DSH-6GRY
6mm (1/4”) soft shackle,
suits RF48109HL and RF48209
Mainsheet systems and spinnaker sheets on dinghies,
off-the-beach catamarans and sportsboats to 8m
(26ft).
BB Sheave and balls: High compression strength
acetal.
HHL sheave and bearing race: Grade 2205 stainless
steel with Grade 304 stainless steel ball bearings.
Halyard, vang and backstay applications on boats to
9m (30ft).
Frame/cheeks: Toughened, glass fibre reinforced
nylon.
Control line applications on larger yachts.
SHEAVE MAX.
DIAM. ROPE
mm
mm
Suits RF48109HL,
RF48209
PIN
DIAM. M.W.L.
mm
kg
B.L.
kg
WEIGHT
g
SHEAVE
DIAM.
in.
MAX.
ROPE
in.
PIN
DIAM. M.W.L.
in.
lb
B.L.
lb
WEIGHT
oz
40
40
40
40
40
40
10
10
10
10
10
10
4
-
400
400
400
400
400
600
800
800
800
800
1200
30
60
47
70
33
86
1 9/16
1 9/16
1 9/16
1 9/16
1 9/16
1 9/16
3/8
3/8
3/8
3/8
3/8
3/8
5/32
-
880
880
880
880
880
1320
1760
1760
1760
1760
2650
1.1
2.1
1.7
2.5
1.2
3.0
40
40
10
10
-
1000
1000
3000
77
96
1 9/16
1 9/16
3/8
3/8
-
2200
2200
6610
2.7
3.4
