Looking for PN Plastic Screw Gears? Let us check the product family, sizes and exact model code.
Customer: What is this product family?
KAYO: PN is the MC901 nylon screw gear family. Screw gears are used for motion transmission between nonparallel, nonintersecting shafts. Check the intended shaft arrangement before selecting the pair.
Customer: Which sizes are listed?
KAYO: The Japanese selection table lists 32 model codes for this family. Modules: 1, 1.5, 2, 2.5, 3. Tooth counts: 10, 13, 15, 20. Representative sizes are shown below; the complete model list follows. Mass is in kilograms.
| Model | Module | Teeth | Outside diameter (mm) | Mass (kg) |
|---|---|---|---|---|
| PN1-13R | 1 | 13 | 20.38 | 0.0045 |
| PN1.5-13R | 1.5 | 13 | 30.58 | 0.014 |
| PN2-13R | 2 | 13 | 40.77 | 0.034 |
| PN2.5-15R | 2.5 | 15 | 58.03 | 0.075 |
| PN3-15L | 3 | 15 | 69.64 | 0.12 |
Customer: How should I select the mating gear?
KAYO: Confirm the manufacturer-approved mating combination, normal module, pressure angle, helix hand, shaft angle and center distance. Keep R or L in the full model code. Evaluate the selected material pair against the actual speed, load and lubrication conditions.
Customer: What are the complete model numbers?
KAYO: PN1-13R, PN1-13L, PN1-15R, PN1-15L, PN1-20R, PN1-20L, PN1.5-10R, PN1.5-10L, PN1.5-13R, PN1.5-13L, PN1.5-15R, PN1.5-15L, PN1.5-20R, PN1.5-20L, PN2-10R, PN2-10L, PN2-13R, PN2-13L, PN2-15R, PN2-15L, PN2-20R, PN2-20L, PN2.5-13R, PN2.5-13L, PN2.5-15R, PN2.5-15L, PN2.5-20R, PN2.5-20L, PN3-10R, PN3-10L, PN3-15R, PN3-15L.
Customer: What should I check before installation?
KAYO: Check the bore and keyway fit, shaft alignment, bearing support, backlash and tooth contact. Verify thrust loads and the lubrication arrangement for the exact material and duty. Consult the manufacturer drawing before making secondary modifications.
Customer: What details should I send for an enquiry?
KAYO: Please send the complete gear and mating-gear codes, quantity, required ratio, shaft arrangement, bore or keyway requirements, speed and load. We can review the specification and availability for your application.
References: Official model selection table | KHK screw gear range | KHK technical information. Confirm final dimensions and suitability against the latest manufacturer drawing.