Spur gear module 8 z=25 with hub
Available product promotions:
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Weight19kg
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UPC Code5908453538390
Product Description
Spur gear module 8, z=25, with hub
Gear module 8, z=25, with hub - a robust component for building and repairing gear transmissions, reducers and rack drives (gear rack + gear). 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) | 8 |
| Pressure angle | 20° |
| Number of teeth (z) | 25 |
| Type | Gear with hub |
| Outside diameter (De) | 216 mm |
| Pitch diameter (Dp) | 200 mm |
| Hub outer diameter (d) | 150 mm |
| Pilot bore diameter (D) | 30 mm |
| Tooth width (h) | 80 mm |
| Overall hub height (A) | 110 mm |
| Weight | 19 kg |
| Material | C45E steel (UNI EN 10083-1) |
Frequently asked questions
How can a module gear be secured against sliding along the shaft?
Besides a key or a clamping bush, set screws (locking screws) in the hub, thrust washers or retaining rings are also used - the choice depends on whether the transmission operates under variable axial load.
In which applications do helical module gears perform well?
Helical teeth ensure smoother engagement, which drastically reduces noise and vibration at high rotational speeds. They are used in precision speed reducers and machine tools, bearing in mind, however, the need to use thrust bearings (absorbing axial forces).
How can wear of the gears in a module gearbox be diagnosed?
Wear is easiest to spot from a change in the tooth profile - it becomes sharp at the tip, and the backlash increases dramatically, which shows up as loud knocking when the machine changes its direction of rotation.
How should gears be stored correctly before installation?
Preferably in a dry room, protected against moisture and dust, with a light layer of preservative oil on the teeth and bore - especially important for C45E carbon steel, which can start to corrode without protection.
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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Weight19kg
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UPC Code5908453538390