Ever-power Transmission is producer & distributor of commercial hardware & supplies including cable rope blocks or cable pulleys. The blocks (wire pulleys) types include double sheave directional blocks, assembly blocks, horizontal directional blocks, snatch blocks, sole swivel directional blocks, vertical directional blocks, one swivel eye blocks, double swivel eye blocks, single flat mount blocks, twice flat mount blocks, single fixed eye blocks, double fixed eye blocks, one swivel hook blocks, double swivel hook blocks & distinctive blocks. Assuming you have any technological questions or need support with placing your orders after that either call us or email us at hzpt@hzpt.com
A pulley is a wheel on an axle or shaft that’s designed to support motion and change of course of a taut wire or belt, or transfer of vitality between your shaft and cable or belt. Regarding a pulley backed by a framework or shell that does not transfer power to a shaft, but is employed to guide the wire or exert a pressure, the helping shell is named a block, and the pulley may be called a sheave.
A pulley might have a grooveor grooves between flanges around its circumference to locate the wire or belt. The travel element of a pulley system can be a rope, cable, belt , or chain .
The earliest evidence of pulleys date back again to Mesopotamia in the early 2nd millennium BCE,[1] and Ancient Egypt in the Twelfth Dynasty (1991-1802 BCE).[2] In Roman Egypt ,Hero of Alexandria (c. 10-70 CE) discovered the pulley as one of six simple equipment used to lift weights.[3] Pulleys happen to be assembled to form a prevent and tackle in order to provide mechanical advantage to apply huge forces. Pulleys are also assembled within belt and chain drives so that you can transmit power from one rotating shaft to another.
The pulley, a simple machine, helps to perform work by changing the route of forces and producing easier the moving of huge objects. … With this kind of pulley – called a fixed pulley – pulling down on a rope makes an object climb off the ground. Additionally, there are movable pulleys and pulley devices.
Cable pulleys
2″ O.D. x 7/8″ Hub x 3/8″ Bolt Bore – Nylon Cable Pulley
2″ O.D. x 7/8″ Hub x 3/8″ Bolt Bore – Nylon Cable Pulley
Key Features
· Outside Diameter: 2″ Nominal (2.014″ Actual)
· Effective Diameter (Cable contact diameter): 1.5″ Nominal (1.538″ 
Actual)
· Cable Groove Width: Accepts cable diameters up to 1/4″
· Hub Width: 7/8″ Nominal (.862″ Actual)
· Bolt Bore Diameter: 3/8″ Nominal
· Both pulley body and hub inserts Manufactured from black, high-impact reinforced nylon
· Rides on even ball bearing (un-sealed)
· Weighs just 58 grams
Technical Data
aluminium, anodized E6/EV1
Housing from profile 45 x 90
Pulley steel, galvanized, prepared for installation
End cap
optimum weight of the lifting door with paired insertion of the pulley, 12kg
weight = 0.522 kg/piece
Applications
Chain invert unit of counterweights on lifting doors, for internal compensation weight in profile 45 x 90 L or 45 x 90 G
For continous operation and major loads use chain pulley 45
Technical Data
aluminium, anodized E6/EV1
Housing from profile 90 x 90
Pulley steel, galvanized, all set for installation
End cap
optimum weight of the lifting door with paired insertion of the pulley, 30kg
weight = 0.680 kg/piece
Applications
Chain invert unit of counterweights on lifting doors, for interior compensation weight in profile 90 x 90 L
For continous operation and heavy loads use chain pulley 90
3″ O.D. x 7/8″ Hub x 3/8″ Bolt Bore – Nylon Cable Pulley
3″ O.D. x 7/8″ Hub x 3/8″ Bolt Bore – Nylon Cable Pulley
Key Features
· Outside Size: 3″ Nominal (2.984″ Actual)
· Effective Diameter (Cable contact diameter): 2-3/16″ Nominal (2.180″ Actual)
· Wire Groove Width: Accepts cable up to 3/16″ outside diameter
· Hub Width: 7/8″ nominal – .870″ actual measured
· Bolt Bore Diameter: .380″ Nominal (.380″ Actual)
· Both pulley body and hub inserts Manufactured from black, high-impact reinforced nylon
· Rides on even ball bearing (un-sealed)
· Very hard-to-find item!
Regular price: $22.95
Our price: $11.50, 4/$40.00
3″ O.D. x 7/8″ Hub x 3/8″ Bolt Bore – Nylon Cable Pulley AFK-113
Pulleys & Hardware
Our collection of industrial pulleys and hardware is suitable for drop down pulleys and professional applications. We have various styles that are suitable for various functions such as feed and water lines, through-the-wall structure applications and heavy-duty cable and winching.
Are you interested in a custom engineered program, catalog element, or a Ever-power common assembly? Get in touch with our friendly crew of authorities and engineers who can answer any questions you may have and assist you to take the next phase to creating the Ever-power framing alternative you need. Contact us today!