Spur gear module 3 z=25 with hub hardened
Available product promotions:
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Weight1,377kg
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UPC Code5908453537201
Product Description
Spur gear module 3, z=25, with hub, hardened
This module 3 spur gear (25 teeth, with hub) is used wherever reliable, maintenance-free power transmission via involute gearing is required. 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) | 25 |
| Type | Gear with hub |
| Outside diameter (De) | 81 mm |
| Pitch diameter (Dp) | 75 mm |
| Hub outer diameter (d) | 60 mm |
| Pilot bore diameter (D) | 16 mm |
| Tooth width (h) | 30 mm |
| Overall hub height (A) | 50 mm |
| Weight | 1.38 kg |
| Material | C45E steel (EN 10083-1), teeth induction hardened 45-55 HRC |
Frequently asked questions
What should I do if I need a non-standard module that is not currently in the standard range?
If time is short and you need a specific size, we offer professional 3D printing from modern glass-fibre-reinforced materials. It is an outstanding, durable solution for an urgently needed spare part, for prototyping or for gears with lower loads, allowing you to restore continuity of operation very quickly.
Can gears with different modules be combined in one gearbox?
Absolutely not. Teeth of different modules differ in size and pitch. Any attempt to mesh them will end in the drive jamming or the teeth breaking off immediately on the first revolution of the shaft.
What is profile shift and when is it used?
It is a slight shift of the tooth profile relative to the standard profile, used mainly with a very small number of teeth to avoid undercutting the tooth root; in typical stock applications it is not required.
What lubrication is optimal for open module (rack) gear drives?
For open systems (gear + gear rack), it is best to use thick greases with added graphite or copper, which adhere firmly to the teeth and are not flung off by centrifugal force. In very dusty applications, dry Teflon lubricants perform better.
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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Weight1,377kg
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UPC Code5908453537201