Short answer
Cast nylon gears run more quietly than steel gears, absorb shocks and can run with little or no lubrication. Paired with a steel gear, they reduce noise and wear on the mating gear. They can be made in different modules, as spur gears and sprockets, to your drawing.
Where are they preferred?
- Food and packaging machinery: areas where oil is unwanted.
- Conveyors and drives: sprockets.
- Textile and agricultural machinery: quiet, light gears.
- Drives with shock loads.
Design considerations
In plastic gears, tooth root stress and heat build-up are decisive. At high speed and load, backlash is kept slightly larger than for metal gears because of thermal expansion. We explain the effect of moisture and temperature in tolerances for plastic parts.
For small precision gears POM can be an alternative; compare in cast nylon or POM.
Production
We CNC-machine gears from cast nylon rod in different modules, with keyways and hubs, to your drawing or sample. Examples: cast nylon gears.
We describe sample-approved series production step by step in from sample to series production.
Frequently asked questions
How long does a cast nylon gear last?
Life depends on load, speed, lubrication and the mating gear. A well-designed cast nylon gear needs less maintenance than a metal one and protects the mating gear.
Can you copy a gear from a sample?
Yes. We measure the worn sample, produce a drawing and make the new gear.
