Plastic gears & worm drives
Check the actual resin grade, tooth load and noise.
← Industry & component applications
COMPONENT APPLICATION
Choosing plastic-gear grease: noise & cold starts
Select grease for plastic gears around polymer compatibility, noise, cold-start torque and dose. Review EUBO candidates and plan actual-part testing or a document/sample enquiry.
Application points & evaluation
Plastic-to-metal sliding contacts
Compare starting drag, squeak, dose and migration.
Cabin & appliance miniature drives
Review cold starts and behaviour after cycling.
View the mechanism schematic
SELECTION IN CONTEXT
Can grease help reduce plastic-gear noise?
Grease can change friction and noise at a contact. Tooth geometry, backlash, shaft alignment, assembly and wear can also be involved. Record the temperature, load and direction where noise occurs, then compare candidates on the actual polymer using both sound and operating torque.
Match the contact, condition and evidence
Define the differences between contacts before comparing candidate materials.
| Contact | Selection & evaluation | Record |
|---|---|---|
| Polymer & mating material | Use the actual resin grade, including fillers, and review contact with seals or coatings; a polymer family name alone is insufficient. | Polymer grade, mating material, adjacent parts and current lubricant |
| Noise & tooth contacts | Reproduce the operating condition and compare noise, tooth condition and wear using the same method. | Direction, load, speed and sound measurement position/method |
| Cold starts | Condition the mechanism at the specified temperature and compare start-up, peak current or starting torque against the design limits. | Temperature, conditioning time, start-up procedure and current or torque |
| Dose & durability | More grease is not automatically better. Review supply to working contacts, migration and condition after cycling. | Application point/dose, cycles, oil separation, migration and wear |
How to compare candidates
Define the issue and acceptance criteria
Record the noise trigger and allowable torque; inspect mechanical causes too.
Control material and application conditions
Compare the current and candidate materials on matching parts, cleanliness, locations and doses.
Compare starts, running and durability
Record cold starts, normal running and post-cycle noise, torque and component condition.
Application questions
Can a metal-gear grease also be used on plastic gears?
Do not substitute by category name alone. Review the formulation, including base oil/additives, actual polymer and seal compatibility, load, temperature and torque.
Is a low-temperature rating enough to select a grease?
A lubricant temperature range does not establish start-up of the assembly. Read the grade test conditions and check mechanism current, torque and motion at the required temperature.
MATERIALS & GRADES
Materials & grades to review
Grease selection for small plastic gears and plastic-to-metal interfaces. Review starting torque, noise and material compatibility.
Resin and elastomer grades, starting torque, noise, migration and dose
View the product family & documentation →Share your requirements
Confirm numerical specifications and use scope in current grade-specific TDS and SDS. Share the part drawing, materials, conditions and evaluation targets.
Technical enquiry & samples →