Spur gear module 3 z=22 with hub
Available product promotions:
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Weight1kg
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UPC Code5908453536921
Product Description
Spur gear module 3, z=22, with hub
The module 3 spur gear z=22 with hub is a precision gear transmission component designed to transmit high torques at a constant ratio. The standard material is C45E steel (UNI EN 10083-1), widely used in the construction of gear transmissions, gear racks and module drives.
Technical data
| Module (m) | 3 |
| Pressure angle | 20° |
| Number of teeth (z) | 22 |
| Type | Gear with hub |
| Outside diameter (De) | 72 mm |
| Pitch diameter (Dp) | 66 mm |
| Hub outer diameter (d) | 50 mm |
| Pilot bore diameter (D) | 15 mm |
| Tooth width (h) | 30 mm |
| Overall hub height (A) | 50 mm |
| Weight | 1 kg |
| Material | C45E steel (UNI EN 10083-1) |
Frequently asked questions
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.
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.
Can a module gear be painted or lacquered?
Yes, the external surfaces (sides, circumference) can be protected with lacquer, but the teeth and the mounting bore should remain clean, because the coating would change their actual dimensions and disrupt meshing with the other gear.
How do you measure a worn tooth to choose the right replacement?
It is best to measure the outside diameter (Dz) and count the teeth (Z), and calculate the module from the formula m = Dz / (Z+2); it is also worth measuring the bore diameter so that the replacement fits the same shaft without additional machining.
Where is this product used?
Used in the construction and servicing of gear reducers and gear transmissions for agricultural and construction machinery, and wherever precise and repeatable torque transmission matters.
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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Weight1kg
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UPC Code5908453536921