Spur gear module 2 z=27 with hub hardened
Available product promotions:
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Weight0,45kg
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UPC Code5908453536013
Product Description
Spur gear module 2, z=27, with hub, hardened
The spur gear module 2 shown, 27 teeth, with hub, is a basic component of module drives - it meshes with any other gear or gear rack (toothed rack) of the same module and pressure angle 20°. The teeth are induction hardened to 45-55 HRC, which significantly increases wear resistance and extends gear service life in heavily loaded transmissions.
Technical data
| Module (m) | 2 |
| Pressure angle | 20° |
| Number of teeth (z) | 27 |
| Type | Gear with hub |
| Outside diameter (De) | 58 mm |
| Pitch diameter (Dp) | 54 mm |
| Hub outer diameter (d) | 40 mm |
| Pilot bore diameter (D) | 12 mm |
| Tooth width (h) | 20 mm |
| Overall hub height (A) | 35 mm |
| Weight | 0.45 kg |
| Material | C45E steel (EN 10083-1), teeth induction hardened 45-55 HRC |
Frequently asked questions
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 a module gear differ from a chain sprocket?
A module gear meshes directly with another gear or gear rack, while a sprocket works with a roller chain - they have a different tooth profile and are not interchangeable, even though they look similar from a distance.
Does a higher number of teeth (z) with the same module mean a stronger gear?
Not directly - tooth strength depends mainly on the module and face width, not on the number of teeth; a larger z with the same module simply gives a larger gear diameter and a higher ratio relative to the mating gear.
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.
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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Weight0,45kg
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UPC Code5908453536013