Nylon Timing Pulleys – Value, Performance and Versatility

For excessive-torque and excessive-horsepower applications, the timing pulley benefit goes to the metallic pulleys. They offer substantial differences in tensile strength and size options, but it truly is where the advantages give up. While the term ‘plastic’ is used to describe a category of timing pulley materials, it’s miles actually glass stuffed nylon that is the focus of this text. Nylon is a completely hard material and excels at making components consisting of over molded timing pulleys.

Besides being a comparatively less expensive choice to metallic pulleys, nylon timing pulleys have an array different options that need to be taken into consideration:

Non-Magnetic: Nylon pulleys convey no magnetic signature making them best for many mechanisms, devices, procedures or electronics which might be vulnerable to very moderate Pulley changes magnetic fields. Nylon pulleys aren’t stimulated by strong magnetic fields making them best for use around equipment along with MRI machines or magnetic conveyors.

Long Service Life: The running surfaces of the pulley are supported with the aid of a web that is designed to manipulate hundreds and excessive pace rotation. The internet in turn is supported by way of a metallic insert for the set up of the pulley at the power or driven shaft. The inserts can be crafted from aluminum, carbon steel and stainless-steel and do have the standard mounting alternatives. To be clean, the time period ‘insert’ may be deceptive, for the reason that insert is not pressed or screwed into the nylon pulley, however rather it’s far a precisely machined component this is over molded at some stage in the molding of the nylon pulley.

Lightweight: Nylon’s particular gravity is set half of that of aluminum and about one-6th that of steel. That means nylon is lightweight and produces components with low inertia homes.

Flame Retardant: Nylon timing pulleys can also be made the usage of flame retardant additive with a view to follow UL94-V0 UL flammability standards, which essentially dictates that the pulleys will no longer burn with out a continuous ignition source. In different phrases, they’re self extinguishing and will not make contributions to the spread of hearth.

Chemical and Corrosion Resistant: Some trendy facts about nylon pulleys you should don’t forget: They are each chemical and corrosion resistant; they may now not rust or oxidize; can be used in maximum environmental conditions; and due to the fact nylon is a natural lubricant, belt existence will no longer be prematurely shortened.

High Temperature Applications: Nylon pulleys may be used in excessive temperature places generally now not exceeding 275°F (one hundred thirty five°C) however additionally observe that for maximum pulley driven mechanisms the temperature limits of the timing pulleys some distance exceed the temperature limits of most belts.

No Static Build-Up: Static increase and it’s eventual discharge can be complicated in industries that use pulleys as part their method device. Static energy is a feature of excessive velocity mechanical motion, atmospheric conditions (humidity) or location within an electrical field. The end result is a build up of charges on surfaces. It can be deadly in explosive environments wherein excessive concentrations of flammable dust, volatile solvents or hydrogen gasoline is gift. In many touchy production operations, it simplest takes a few volts of static strength to damage touchy merchandise, along with pc chips. To prevent this capacity trouble, nylon timing pulleys can be synthetic the usage of additives inclusive of PAN (Polyacrylonitrile) Carbon Fibers, a not unusual material used inside the aerospace industries. On its personal, nylon is a super insulating material, however the addition of PAN in addition enhances it is anti-static houses.