Spur gear module 2 z=70 with hub
Available product promotions:
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Weight2,96kg
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UPC Code5908453535955
Product Description
Spur gear module 2, z=70, with hub
Gear module 2, z=70, with hub - a robust component for building and repairing gear transmissions, reducers and rack drives (gear rack + gear). Made of C45E steel (UNI/EN 10083-1), which ensures high mechanical strength and wear resistance during prolonged operation under load.
Technical data
| Module (m) | 2 |
| Pressure angle | 20° |
| Number of teeth (z) | 70 |
| Type | Gear with hub |
| Outside diameter (De) | 144 mm |
| Pitch diameter (Dp) | 140 mm |
| Hub outer diameter (d) | 80 mm |
| Pilot bore diameter (D) | 20 mm |
| Tooth width (h) | 20 mm |
| Overall hub height (A) | 35 mm |
| Weight | 2.96 kg |
| Material | C45E steel (UNI EN 10083-1) |
Frequently asked questions
How do you choose a gear rack to match a specific module gear?
The principle is the same as when selecting two gears - the rack must have the same module as the drive gear. Remember to choose the right rack width, which should be equal to or slightly wider than the face width of the gear, in order to transmit the full torque.
How can you check whether two module gears will mesh with each other?
There is one absolute condition: both gears must have exactly the same module (e.g. m=2) and the same pressure angle (standard 20°). If the modules differ by even a fraction of a millimetre, the teeth will start to shear and the gearbox will be destroyed.
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 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.
Where is this product used?
Typical applications include conveyor drives, packaging machines, industrial automation and positioning systems using a gear and gear rack pair.
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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Weight2,96kg
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UPC Code5908453535955