Spur gear module 3 z=31 with hub hardened
Available product promotions:
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Weight2kg
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UPC Code5908453537256
Product Description
Spur gear module 3, z=31, with hub, hardened
The spur gear module 3 with z=31 teeth (with hub) is a universal modular component whose parameters match the entire family of gears and gear racks of the same module. The tooth surface is induction hardened (45-55 HRC), so the gear better withstands high cyclic loads and operation in harsh industrial conditions.
Technical data
| Module (m) | 3 |
| Pressure angle | 20° |
| Number of teeth (z) | 31 |
| Type | Gear with hub |
| Outside diameter (De) | 99 mm |
| Pitch diameter (Dp) | 93 mm |
| Hub outer diameter (d) | 70 mm |
| Pilot bore diameter (D) | 20 mm |
| Tooth width (h) | 30 mm |
| Overall hub height (A) | 50 mm |
| Weight | 2 kg |
| Material | C45E steel (EN 10083-1), teeth induction hardened 45-55 HRC |
Frequently asked questions
How do you choose the gear material (C45E steel, stainless steel or plastic) for specific operating conditions?
C45E steel is a universal choice for most industrial drives, stainless steel performs well in humid or aggressive environments, and plastics are used for lower loads or when quiet running and lubrication-free operation matter.
How does the build quality of a Polish/European manufacturer reduce rolling resistance in the gearbox?
Cheap gears from unverified sources often have a rough tooth surface that acts like sandpaper, raising the temperature and the drive resistance. Our gears have a smooth working surface, which helps maintain the lubricating film and minimises energy losses.
Why is precise machining of module gears crucial for drive service life?
A precisely cut tooth involute guarantees that the gears roll on each other without micro-impacts or slippage. This reduces friction lowers the operating temperature and dramatically extends the service life of the entire gearbox.
How does the operating temperature affect the choice of material for a module gear?
At high temperatures, C45E steel retains its properties much better than plastics, which can soften and lose tooth profile accuracy; in such cases steel (including stainless steel if moisture or steam is also present) is the safer choice.
Where is this product used?
It performs well in power transmission systems in machine tools, production lines and sliding gates, where it works together with a gear rack of the same module.
When placing your order, please check the current stock level of this gear - the lead time depends on it and is clearly stated according to the quantity available in the given warehouse.
Product photos are for illustrative purposes only.
Product Features
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Weight2kg
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UPC Code5908453537256