Top Single Sheave Stringing Block

HARKEN 16 mm Block | Premium Sailing and Sailboat Equipment

Perfect for small synthetic control lines found on high-tech dinghies.
Patented bearing system uses stainless steel balls in a captive grooved race and has a 250 lb (113 kg) maximum working load.
The 404 uses an O-ring to keep the line in the sheave during intermittent loading.

Perfect for small synthetic control lines found on high-tech dinghies.
Patented bearing system uses stainless steel balls in a captive grooved race and has a 250 lb (113 kg) maximum working load.
The 404 uses an O-ring to keep the line in the sheave during intermittent loading.

4" Heavy Duty Sheave Pulley - 4" Garage Door Pulley Sheave - 4" Riveted Sheave - Zinc Plated.
Use on Residential Doors/ Light Commercial.

RUGGED DURABLE CONSTRUCTION - Built with high strength American steel this 6" welded frame hook type sheave is designed to withstand the toughest jobsite conditions.
4000 LB CAPACITY - This sheave boasts a 4 000-pound cable pulling capacity to handle large jobs with ease.
SELF-LUBRICATED BEARINGS - The 5” wide aluminum sheave comes with self-lubricated bearings for efficient use for years to come.
LIGHTWEIGHT - Weighing just 11 5 lbs this lightweight hook type sheave is easy to transport and maneuver around the job site.
MADE IN THE USA - This Current Tools product is 100% designed and manufactured in the United States of America.

Complete Primary Sliding, Fixed Sheave and Belt.
Order Includes: 1x Complete Primary Sliding Sheave, 1x Fixed Sheave, 1x Belt.
We strongly suggest comparing the posted picture to the unit(s) that needs to be replaced..

The snatch block is a pulley system with covered and protected yet removable sides..
Snatch blocks or pulleys are used to change the direction of the pull to a different angle relative to a fixed point..

The snatch block is a pulley system with covered and protected yet removable sides..
Snatch blocks or pulleys are used to change the direction of the pull to a different angle relative to a fixed point..

Swivel eye has the mobility of 360 degrees allowing for change in direction.
Made out of steel making it strong, durable, waterproof, and resistant to temperature changes, corrosion, and rust.
Used in both indoor and outdoor applications for tent tightening, rope or industrial lifting, and many other uses.
Measurements include sheave height of 1 inch, sheave height of 3/4 inches, and sheave height of 1 1/2 inches.

DECREASED VIBRATION: This Johnson Magnetic Sheave Laser is designed to offer a high accuracy level ranging from +/- 1/6 in. to 10 ft. It is made to decrease vibrations on pulleys and sheave systems, helping minimize wear on belts and motor bearings..
SECURE FITTING: The alignment level tool features rare earth magnets that ensure a secure attachment to ferrous metals, allowing quicker and safer set up. The strong magnets offer accurate alignment for reduced noise and abrasion..
COMPACT SIZE: Featuring three laser targets, the magnetic aligning tool easily adjusts to various width sheaves for versatility. The compact size of the tool also makes it easy to use on sheaves with a small diameter..
APPLICATION: This sheave laser has a red laser wavelength of 635nm+/-10nm to quickly check height and flatness of gear box and motor mounting plates. It is also suitable for various alignment jobs on sprockets, rollers and other plant equipment..
PRODUCT SPECIFICATIONS: This Red Sheave Alignment Kit is powered by 2 "AAA" alkaline batteries (included) and has a battery life of up to 10 hours. It comes packed in a hard case for protection and easy carrying..

The snatch block is a pulley system with covered and protected yet removable sides..
Snatch blocks or pulleys are used to change the direction of the pull to a different angle relative to a fixed point..