Calculate gear module - measure spur gear correctly and create replacement gear
A defective gear wheel is a common problem with Machines, Household appliances, modelbau or DIY projects. The original spare part is often no longer available. In many cases, however, you can order a new Rebuild spur gearif the most important dimensions are known.
In this guide, we show you in detail how to create a gear richtig missthow you do that Calculate module which values you need for this and how you can create a Ersatz gear is created. You can then use your Stirnrad with Involutverzahnung configure directly online.
Why do Zahnräder kaputt?
Gears constantly transmit forces and movements. Depending on the material, load and duration of use sooner or later there will be wear or breakage. Especially Kuststoffzahnräder in older appliances or gearboxes are often affected. If you want to replace a broken gear, you first need to correctly record the most important dimensions.
- materialermüyoung
- Overload in the gearbox
- Alterung von Kuststoffzahnrädern
- missing lubrication
- Blocking the gearbox
- falsche Ausrichtung or schiefe Belastung
Which Maße braucht man für ein gear?
In order to Ersatz gear only a few basic values are required to create a spur gear. These dimensions define the geometry of a spur gear and are decisive for whether the new gear will later run smoothly with the mating gear.
- Number of teeth – number der Zähne
- Außenyourchmesser – Gesamtyourchmesser über die Zahnspitzen
- Width – axiale thickness des gears
- boresyourchmesser – hole für die Welle
- module - most important parameter for tooth pitch
If these values are known, a gerades Stirnrad with Involutverzahnung can often be recreated very quickly. In your case, you can set the module, number of teeth, width, Drill hole and optional Hub directly in the configurator.
gear richtig vermessen – Schritt für Schritt
To measure a gear, it is usually sufficient to use a Caliper. It is important to measure cleanly and, if possible, in undamaged areas. If individual teeth are missing, the remaining measurements can often still be reliably determined.
1. Count number of teeth
Count all the teeth once all the way around. The Number of teeth is a central value for the later calculation of the module and for the geometry of the new spur gear.
2. Außenyourchmesser messen
Measure the Außenyourchmesser over the tips of the teeth. This value is used together with the number of teeth to determine the module.
3. width des gears messen
The Width is the axial thickness of the gear. It influences the load capacity, power transmission and installation situation.
4. bore messen
Measure the diameter of the Center hole. This hole is important so that the gear wheel later sits correctly on the shaft or axle.
5. Optional: Consider hub
Some gears have a Hub. This provides more material in the bore area and can be important if clamps, grub screws or a more stable installation are planned. The hub can be optionally activated in the configurator.
Calculate module of a gear
The module is the most important parameter of a gear. Only gears with the same module can work properly together. So if you have a Replace spur gear, a Custom gear ? individually configurable 3D model or a new Involut gear configure must know the module.
With a normal straight spur gear, the module can be removed from Außenyourchmesser and Number of teeth calculate:
Formel zur moduleberechnung
Module = outer diameter / (number of teeth + 2)
Example
- Number of teeth = 30
- Außenyourchmesser = 32 mm
- module = 32 / (30 + 2)
- module = 1
So you know: The gear wheel has module 1. Exactly this value can then be entered in the spur gear configurator.
Häufige error beim gear messen
- Außenyourchmesser nicht über die Zahnspitzen messen
- Count the wrong number of teeth
- Accept damaged areas without checking
- bore ungenau messen
- module with partkreisyourchmesser verwechseln
If you measure accurately and apply the formula correctly, in many cases you will very quickly arrive at a useful result for a new spur gear.
Typische modulegrößen bei Stirnrädern
Many gears are based on standardized module sizes. Typical values are
- 0.5
- 0.8
- 1
- 1.5
- 2
- 2.5
- 3
Especially for small gearboxes, model making, household appliances and repairs often module 0.5, module 0.8 or module 1.
Stirnrad with Involutverzahnung jetzt configure
When module, Number of teeth, Width and bore have been determined, a new gear can be generated. This is exactly what the Stirnrad_Involut configurator thought.
The following values can be set there:
- module (mm)
- Number of teeth
- width (mm)
- bore (mm)
- Nabe optional ein- or ausschalten
The model generates a gerades Stirnrad with Involutverzahnung and is suitable for mechanical engineering, repairs, DIY projects and 3D printing.
Kaputtes gear ersetzen
Once you have determined the number of teeth, outside diameter, width and bore, kannst du dein neues Stirnrad direkt online konfigurieren.
FAQ - Calculate gear module
How calculated man das module eines gears?
With the formula module = Außenyourchmesser / (Zahnzahl + 2). To do this, you need the outside diameter and the number of teeth of the gear.
Which Maße sind für ein Stirnrad wichtig?
The most important values are Number of teeth, module, Width and bore.
Can a broken gear ersetzen?
Yes, in many cases a damaged or broken gear can be measured and recreated as a replacement part.
Can gears be produced using 3D printing?
Yes, especially for repairs, prototypes and many technical applications 3D-printed gears are often a viable solution.
What is it?
A spur gear with involute toothing is a straight gear with a technically proven tooth form, which is very common in mechanical engineering.
What information can I enter in the configurator?
In the configurator for Spur gear_Involut you can set the module, number of teeth, width, bore and optionally a hub.
Configure spur gear now
Have you already determined the dimensions? Then start directly with the configurator and create your Involut spur gear online.