VEDALI HARDWARE CO., LTD
| Payment Terms | L/C, T/T, Western Union , Paypal |
| Supply Ability | 300 , 000 pcs per month |
| Delivery Time | 30 days |
| Packaging Details | 5000 pcs in bulk each carton with dimension 20 X 22 X 25 cm , 500 cartons to a 20 ft container |
| Material | Nylon |
| Property Class | PA 66 |
| Color | White |
| Fire Resistance | UL94V-2 |
| Modulus | 0.5 m |
| Teeth Number | 28 Z |
| Reference Circle | 14 |
| Pressure Angle | 20° |
| Brand Name | VDL |
| Model Number | PG2028 |
| Certification | ISO |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C, T/T, Western Union , Paypal | Supply Ability | 300 , 000 pcs per month |
| Delivery Time | 30 days | Packaging Details | 5000 pcs in bulk each carton with dimension 20 X 22 X 25 cm , 500 cartons to a 20 ft container |
| Material | Nylon | Property Class | PA 66 |
| Color | White | Fire Resistance | UL94V-2 |
| Modulus | 0.5 m | Teeth Number | 28 Z |
| Reference Circle | 14 | Pressure Angle | 20° |
| Brand Name | VDL | Model Number | PG2028 |
| Certification | ISO | Place of Origin | China |
| High Light | custom plastic gears ，lubricating plastic gears | ||
20mm Wheel White Plastic Crown Gears Compact With 28 Z Straight Teeth
Plastic wheel crown gears with crown body shape , the straight teeth with bigger reference circle are placed on side surface and another side surface has a smaller gear with different reference circle , directions of both gears are contrary . the number of teeth and reference circles are different as well .
Material
Wheel crown gears are made from plastic nylon PA 66
Technical Data
Including Modulus , Number of Teeth ,Outside diameter ,Root diameter ,reference circle ,depth of tooth ,tooth addendum ,tooth dedendum ,pitch ,teeth thickness and pressure angle .
| Modulus | m | 0.5 |
| Number of teeth | z | 28 |
| Outside diameter | da | 15 |
| Root diameter | df | 12.75 |
| Reference circle | d | 14 |
| Depth of tooth | h | 1.12 |
| Tooth addendum | ha | 0.5 |
| Tooth Dedendum | hf | 0.625 |
| Pitch | p | 1.57 |
| Teeth thickness | s | 0.8 |
| Pressure angle | ɑ | 20° |
Unit : mm Big gear in duplicate gears
| Modulus | m | 0.5 |
| Number of teeth | z | 8 |
| Outside diameter | da | 5 |
| Root diameter | df | 2.75 |
| Reference circle | d | 4 |
| Depth of tooth | h | 1.12 |
| Tooth addendum | ha | 0.5 |
| Tooth Dedendum | hf | 0.625 |
| Pitch | p | 1.57 |
| Teeth thickness | s | 0.8 |
| Pressure angle | ɑ | 20° |
Unit : mm Small gear in duplicate gears
Precision
Level 9 based on ISO standard .
Application
Plastic crown gears are mainly used to derailleur and clutch for toy items , they are also used for following items as fittings with light load .
▲ Household appliances
▲ Official appliances
▲ Car
▲ Timing device
▲ Micro electric motor
▲ Camera
▲ Instruments and meters
Performances
| Physical Performance | |
| Density ( g/cm3) | 1.14 |
| Water absorption % | 3 |
| Shrinkage % | 1～2 |
| Mechanical Property | |
| Tensile strength MPa | 60～80 |
| Elongation at break % | 2.2 |
| Bending strength MPa | 100～120 |
| Modulus of elasticity for bending MPa | 2000 ～3000 |
| Notched Impact Strength(J/m) | 60～100 |
| HR hardness | 118 |
| Electrical Performance | |
| Dielectric constant | 1.63 |
| Arc resistance sec | 130～140 |
| Specific volume resistance Ω·cm | 1.83×1015 |
| dissipation factor | 100～400 |
| Dielectric strength(kV/mm) | 20～30 |
| Thermal Performance | |
| Normal working temperature ℃ | 80～120 |
| Brittle temperature ℃ | -30 |
| Melting temperature ℃ | 252 |
| Pyrogenic decomposition temperature ℃ | 350 |
| Matin heatproof ℃ | 50～60 |
Features
▲ Small volume
▲ Light weight
▲ Compact structure
▲ Long transmission torsion
▲ Automatic slip resistant
We make more plastic gears with different specifications for many fields in industry , please contact us if you are interesting in any gear , we are able to develop customized plastic gears as well .
Company Details
Business Type:
Manufacturer,Exporter,Trading Company,Seller
Year Established:
2000
Total Annual:
2000,000-3500,000
Employee Number:
50~120
Ecer Certification：
Verified Supplier
With many years reputation in hardware filed , VEDALI HARDWARE CO., LTD has entered hardware filed and gained much development in these years , we have over 100 employees and 20 engineers on researching and development , and several branches that are specialized in different hardware for vast demand... With many years reputation in hardware filed , VEDALI HARDWARE CO., LTD has entered hardware filed and gained much development in these years , we have over 100 employees and 20 engineers on researching and development , and several branches that are specialized in different hardware for vast demand...
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