Lewmar D1
Rope Clutch - Double - Model 29101208 - $75.00 (plus post)
From the depths of the spare
parts bins of our sailboat - OSIRIS we found this wonderful rope/line
clutch.
Rope Clutches - come in a wide variety of sizes and styles from the simple "jam cleat" which has a rotating knurled cam that digs into the rope/line. Others clamp down on the rope/line squeezing it. But
Lewmar invented the "wave" or "domino" cascading clutch. Five or more parallel plates with a hole in them are tilted by the clutch lever preventing movement by the rope/line with the clutch lever in the closed position. Open the clutch lever and the plate holes line up releasing the rope/line. The big deal is there is no abrasion or ripping or wear on the rope/line cover with this process. And - you can actually meter the speed of the rope/line as it travels through the clutch. That is unique and what with the cost of rope/line these days this clutch is the way to go.
The word clutch is often misused, in the opinion of Lewmar. As used by an
engineer, a clutch is a reliable holding device with designed-in slippage controlled with a brake foot pedal or lever. In the Lewmar Ocean Series rope/line clutches you can actually allow the rope/line to slip out through the device in a controlled manner.
The Domino Cluster Grip for Controlled, Easy Release - Even at Full Holding Load Features:
* Instead of simply jamming line, domino cluster flexes for better grip and less
rope wear
* Pull-back handle combined with patented clutch and release mechanism provides controlled release even at full holding load
* Ergonomically correct handle with solid link to domino cluster
*
Stainless steel fairleads for reduced friction
* Side apertures allow easy
cleaning of mechanism
Notes: Line entry and exit should not exceed 15 deg from the rope clutch centre line Use Pan
head M6 - 1/4' fixings - do not tighten beyond 10 N.m Torque
Line Size (mm) Min Holding Load (kg) Safe Working Load(kg) Weight(g)
6–8 300 500 470
Dimensions
Height Length Width Line Entry Line Exit C D E F
H (mm) L(mm) W(mm) A(mm) B(mm) (mm) (mm) (mm) (mm)
72 126 57.85 27 29 54.85 125 26 79
Specifications:
Lewmar Model No. 29101208
Clutch Type: Double rope
Line Size (rope diameter): 6 mm to 8 mm (1/4" to 5/16")
Minimum Holding Load: 300 kg (661 lbs)
Working Load Limit: 500 kg (1100 lbs)
Dimensions: 72 mm H x 57.85 mm W x 126 mm L
(2-13/16" H x 2-5/16" W x 5" L)