Ever-power Transmission is maker & distributor of professional hardware & supplies including cable rope blocks or wire 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, solo flat mount blocks, twice flat mount blocks, solitary fixed eye blocks, twice fixed eye blocks, solo swivel hook blocks, double swivel hook blocks & particular blocks. Should you have any technical questions or need support with inserting your orders then either give us a call or email us at hzpt@hzpt.com
A pulley is a wheel on an axle or shaft that is designed to support activity and change of course of a taut cable connection or belt, or transfer of ability between your shaft and cable or belt. Regarding a pulley reinforced by a body or shell that does not transfer power to a shaft, but can be used to guide the cable or exert a push, the assisting shell is called a block, and the pulley could be called a sheave.
A pulley may have a grooveor grooves between flanges around its circumference to find the cable or belt. The drive factor of a pulley program can be a rope, cable, belt , or chain .
The earliest evidence of pulleys date back to Mesopotamia in the first 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) determined the pulley as one of six simple machines used to lift weights.[3] Pulleys are assembled to form a block and tackle to be able to present mechanical advantage to apply huge forces. Pulleys are as well assembled within belt and chain drives in order to transmit power from one rotating shaft to another.
The pulley, a simple machine, really helps to perform work by changing the route of forces and producing easier the moving of huge objects. … With this type of pulley – called a set pulley – pulling down on a rope makes an object rise off the ground. There are also movable pulleys and pulley systems.
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 wire diameters up to 1/4″
· Hub Width: 7/8″ Nominal (.862″ Actual)
· Bolt Bore Diameter: 3/8″ Nominal
· Both pulley human body and hub inserts Made of black, high-impact reinforced nylon
· Rides on soft ball bearing (un-sealed)
· Weighs just 58 grams
Technical Data
aluminium, anodized Electronic6/EV1
Housing from profile 45 x 90
Pulley steel, galvanized, ready for installation
End cap
optimum weight of the lifting door with paired insertion of the pulley, 12kg
weight = 0.522 kg/piece
Applications
Chain reverse unit of counterweights about lifting doors, for internal compensation weight in profile 45 x 90 L or 45 x 90 G
For continous procedure and heavy loads use chain pulley 45
Technical Data
aluminium, anodized E6/EV1
Housing from profile 90 x 90
Pulley steel, galvanized, ready for installation
End cap
optimum weight of the lifting door with paired insertion of the pulley, 30kg
weight = 0.680 kg/piece
Applications
Chain reverse unit of counterweights about lifting doors, for internal compensation weight in profile 90 x 90 L
For continous procedure and hefty 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 speak to diameter): 2-3/16″ Nominal (2.180″ Actual)
· Cable 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 physique and hub inserts Manufactured from black, high-impact reinforced nylon
· Rides on simple 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 commercial pulleys and hardware is well suited for drop straight down pulleys and commercial applications. We have a range of styles that are suitable for various requirements such as feed and water lines, through-the-wall applications and heavy-duty cable and winching.
Are you thinking about a custom engineered system, catalog component, or a Ever-power regular assembly? Get in touch with our friendly group of experts and engineers who can solution any questions you may have and help you take the next step to creating the Ever-power framing alternative you need. Contact us today!