Growshine International

Growshine International Trade (Shanghai)

  

HOT ONLINE：

+8619921582610

 

HOT ONLINE：

+8619921582610

  1. HOME
  2. >
  3. PRODUCTS
  4. >
  5. Plastic injection molding
  6. >
  7. Custom nylon gear with thick walls
  • Product
  • Product Detail
Custom nylon gear with thick walls

Custom nylon gear with thick walls

A custom nylon gear with thick wallsThis is a nylon gear with the material of PA66 GF30. Nylon has great strength, ductility, and wear-resistance, but the problem is it absorbs moisture, which will cause it to “swell”. However, this particular application does not require a high accuracy of dimensions, the more important thing is longer product life and reliability. That is why nylon is chosen for this gear.Boyan is capable of designing and manufacturing all kinds of plastic gears.Main gear

Views

Views

Custom nylon gear with thick walls

Interview

Select the number of specifications

Please check the product information you want!

Product Detail


A custom nylon gear with thick walls

This is a nylon gear with the material of PA66 GF30. Nylon has great strength, ductility, and wear-resistance, but the problem is it absorbs moisture, which will cause it to “swell”. However, this particular application does not require a high accuracy of dimensions, the more important thing is longer product life and reliability. That is why nylon is chosen for this gear.

Boyan is capable of designing and manufacturing all kinds of plastic gears.

Main gear parameters

Module (m)m=2.5mm
Teeth number (z)z=22
Teeth width20mm
Reference diameter (d)d=55mm
Tip diameter (da)da=60mm
Root diameter (df)df=48.75mm

drawing for a nylon gear

Mold cost: $2,200

  • Cavity number: 2

  • Mold material: 718H

  • Lead time: 35 days

The thick-wall structure is the main challenge

For any plastic material, thick-wall designs are always to be avoided because it may cause uneven contraction, sink marks, vacuum voids, and other injection molding flaws, and many of these flaws will cause dimensional instability, which is not good for gears.

The wall thickness for this nylon gear is 11.37mm, which is shown on the above drawing. This is pretty thick for injection molding.

How do we minimize the flaws

If you look at the pictures closely, you will see all the flaws are controlled within an acceptable level. The surfaces are quite smooth and flat, we do not see noticeable discontinuity on the surface.


We have taken the following measures to ensure a good quality of this nylon gear:

  • Optimize the mold design, which allows filling the material quickly and evenly. We have conducted mold flow analysis before the mold design was finalized

  • Higher injection pressure and holding pressure.

  • Longer holding time.

  • Quick cooling of the parts after they have been ejected.

No comment

Prev：Big custom plastic enclosure for home appliance Next：Custom plastic helical gears
Product Detail


A custom nylon gear with thick walls

This is a nylon gear with the material of PA66 GF30. Nylon has great strength, ductility, and wear-resistance, but the problem is it absorbs moisture, which will cause it to “swell”. However, this particular application does not require a high accuracy of dimensions, the more important thing is longer product life and reliability. That is why nylon is chosen for this gear.

Boyan is capable of designing and manufacturing all kinds of plastic gears.

Main gear parameters

Module (m)m=2.5mm
Teeth number (z)z=22
Teeth width20mm
Reference diameter (d)d=55mm
Tip diameter (da)da=60mm
Root diameter (df)df=48.75mm

drawing for a nylon gear

Mold cost: $2,200

  • Cavity number: 2

  • Mold material: 718H

  • Lead time: 35 days

The thick-wall structure is the main challenge

For any plastic material, thick-wall designs are always to be avoided because it may cause uneven contraction, sink marks, vacuum voids, and other injection molding flaws, and many of these flaws will cause dimensional instability, which is not good for gears.

The wall thickness for this nylon gear is 11.37mm, which is shown on the above drawing. This is pretty thick for injection molding.

How do we minimize the flaws

If you look at the pictures closely, you will see all the flaws are controlled within an acceptable level. The surfaces are quite smooth and flat, we do not see noticeable discontinuity on the surface.


We have taken the following measures to ensure a good quality of this nylon gear:

  • Optimize the mold design, which allows filling the material quickly and evenly. We have conducted mold flow analysis before the mold design was finalized

  • Higher injection pressure and holding pressure.

  • Longer holding time.

  • Quick cooling of the parts after they have been ejected.

Custom nylon gear with thick walls
A custom nylon gear with thick wallsThis is a nylon gear with the material of PA66 GF30. Nylon has great strength, ductility, and wear-resistance, but the problem is it absorbs moisture, which will cause it to “swell”. However, this particular application does not require a high accuracy of dimensions, the more important thing is longer product life and reliability. That is why nylon is chosen for this gear.Boyan is capable of designing and manufacturing all kinds of plastic gears.Main gear
Long press to look detail
Copy product links
Long by picture save/share
INQUIRY
在线询盘 MORE+

  • Name *

  • Phone *

  • Message

  • Submit

Inquiry Content：

You have no items to require

Add Successfully

Custom nylon gear with thick walls

enquiry
INQUIRY
在线询盘 MORE+

  • Name *

  • Phone *

  • Message

  • Submit

Inquiry Content：

You have no items to require

Add Successfully

Growshine International

HOME     ｜     ABOUT US     ｜     PRODUCTS     ｜     CASES     ｜     NEWS     ｜     CONTACT     ｜     SITEMAP


ADDRESS：Room 1210, Building 1, Mincheng Building, intersection of Jiaqian Road and Huiping Road, Nanxiang Town, Jiading District, Shanghai

PHONE：+8619921582610

WHATSAPP：8619921582610

EMAIL：wangyongyuyovn@gmail.com

Copyright © 2025 Growshine International Co.，Ltd.

添加微信好友，详细了解产品
使用企业微信
“扫一扫”加入群聊
复制成功
添加微信好友，详细了解产品
我知道了