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PEEK660G
PRES
material chose：
PEEK resin has the characteristics of self-lubricating, low-noise, and lightweight, but its mechanical strength is lower than that of reinforced PEEK.
The mechanical strength of fiberglass reinforced PEEK gears has been greatly improved, and they can form abrasive particles due to fiber breakage or detachment, causing scratches on the friction surface and increasing the wear rate.
Carbon fiber reinforced peek increases tensile strength by over 30% and bending modulus by 50%, making it suitable for extreme load fields. Additionally, carbon fiber has a low friction coefficient, which can significantly enhance the wear resistance of PEEK. Moreover, the thermal expansion coefficient and deformation temperature of CF-PEEK material are high, and the energy type gear does not deform in high temperature environments
| Scenario Type | Recommended Solution | Reasons |
|---|---|---|
| Medium-High Load, Lightweight Required | Glass fiber-reinforced PEEK (with lubricant additives) | Balances strength and heat resistance while reducing wear risks via lubricants. |
| Low Load, High Cleanliness Requirements | Pure PEEK | Superior self-lubrication avoids fiber shedding and contamination (e.g., medical devices). |
| Extreme High Temperature/High Load | Carbon fiber-reinforced PEEK or hybrid composite materials | Carbon fiber offers higher rigidity, temperature resistance, and better wear performance. |
However, PEEK resin has lower mechanical strength: compared with reinforced materials, pure PEEK has weaker rigidity and bending strength, making it unsuitable for high load scenarios
We can machine PEEK according to customer drawings to quickly produce samples. After the samples are tested, we can mass produce them through injection molding or machining
Firstly, we will determine the size of the module. The larger the module, the larger the gear teeth, and thus the larger the gear.
To achieve correct meshing of a pair of gears, the module of the two gears must be the same, which means their pitch must also be the same.
The concentric circles of the pitch are the pitch circles of the gears, and the contact points between two meshing gears are their respective pitch circles.
After determining the modulus, it is necessary to determine the number of teeth. It is worth mentioning that when the number of teeth is less than or equal to 17, root cutting (root cutting: when the number of teeth is too small, in order to ensure the meshing between the two gears, the root of the tooth must be smaller) will occur. However, this will reduce the load that the gears can bear, so the number of teeth should be greater than 17. When the number of teeth of one of the gears is determined, the number of teeth of the other gear can be determined based on the transmission ratio.
Further determine parameters such as tooth thickness, tooth crest height, tooth root height, etc.
| No. | Name | Symbol | Formula |
|---|---|---|---|
| 1 | Pitch Diameter | d | d1=1,2=2d1=mz1,d2=mz2 |
| 2 | Addendum Diameter | da | da1=(z1+2),2=(2+2)da1=m(z1+2),da2=m(z2+2) |
| 3 | Dedendum Diameter | df | df1=m(z1−2.5),df2=m(z2−2.5) |
| 4 | Base Diameter | db | db1=mz1cosα,db2=mz2cosα |
| 5 | Whole Depth | ℎ | ℎ=2.25m |
| 6 | Clearance | c | c=0.25m |
| 7 | Circular Pitch | p | p=πm |
| 8 | Tooth Thickness | s | s=πm/2 |
| 9 | Space Width | e | e=2πm/2 |
| 10 | Base Pitch | pb | pb=πm⋅cosα |
| 11 | Standard Center Distance | a | a=m/2(z1+z2) |
Notes:
In the formulas, m represents the module, z1 and z2 are the number of teeth for Gear 1 and Gear 2, respectively, and α is the pressure angle.
Some parameters (e.g., pitch diameter, addendum diameter) must be calculated separately for each gear .
Our engineers can determine the size of the transmission wheel with your limited space, and then determine the size of the driven wheel based on the transmission ratio. After the design is completed, we use CNC and PEEK sheet to make gears and quickly produce samples. After your inspection, we can proceed with mass production.
