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281
SHEAVE
DIAM.
MAX.
ROPE
PIN
DIAM. M.W.L. B.L. WEIGHT
SHEAVE
DIAM.
MAX.
ROPE
PIN
DIAM. M.W.L. B.L. WEIGHT
PRODUCT No.
DESCRIPTION
mm mm mm kg kg
g
in.
in.
in.
lb
lb
oz
Orbit Blocks™
RF79000
Sheave with balls & rollers
75
14
-
-
-
95
3
9/16 -
-
-
3.4
RF79108R
Runner block
75
14 14 2450 4900 275
3
9/16 9/16 5400 10800 9.7
RF79109
Strop block
75
14
-
2450 4900 226
3
9/16 -
5400 10800 8.0
RF79118R
Runner block, becket
75
14 14 2450 4900 305
3
9/16 9/16 5400 10800 10.8
RF79151
Foot block, single
75
14
-
2450 4900 269
3
9/16 -
5400 10800 9.5
RF79251
Foot block, double
75
14
-
2450* 4900* 467
3
9/16 -
5400* 10800* 16.5
RF79500
Spreacher block
75 + 60 14
8 2450 4900 476 3 + 2 3/8 9/16 5/16 5400 10800 16.8
* Total block load. Maximum load on top sheave not to exceed 50% of total block load.
Strop blocks suit direct attachment to Dyneema
®
or similar strops for maximum
weight saving and flexibility.
Spreacher blocks can accommodate a second spinnaker sheet for sail changes
or an outboard genoa sheet for reaching.
Primary mainsheet, halyard and spinnaker systems on boats to 14m (46ft).
Secondary mainsheet, vang blocks on boats to 15m (50ft).
Permanent and running backstay systems on boats to 12m (40ft).
General control line and lead block applications on larger yachts.
Fully machined Alloy cheek plates.
Alloy sheaves with captive ball races.
Torlon
®
needle rollers.
Carbon black Acetal ball bearings.
Grade 17-4PH stainless steel head post and forged shackle.
RF7911 R8
00 RF795
RF79108R
RF79000
RF79251
RF79151
1 x 8mm (5/16”)
1 x 10mm (3/8”)
1 x 8mm (5/16”)
1 x 10mm (3/8”)
Series 75
RF79109
