GAM Spiral Bevel Gearboxes: Dependable by Design

1. Housing: Sturdy cast iron housing (Aluminum in size 35mm and 45mm) - all 6 sides can be used for mounting 

2. Bearings:  Deep groove ball bearings handle axial and radial loading. (Reinforced and taper roller options available)

3. Spiral Bevel Gearing:  Precision cut, hardened, and lapped in pairs for ideal tooth contact. Mathematically precise ratios from 1:1 to 6:1

4. Input:  Available with shaft input or integrated motor adapter and coupling to easily mount to any IEC, NEMA, or servo motor

5. Output:  Solid shaft with key or keyed hollow shaft are standard. (Smooth shaft or shrink disc clamping available)

6. Seals:  Lubricated for life and protected with high quality NBR seals. (Viton® and FPM seals available) 

Carefully engineered and crafted with high quality materials, GAM spiral bevel gearboxes are robust and can handle high shock loads. Since they are maintenance free and lubricated for life, have confidence knowing that they are built to last. Put one onto your machine and forget about it!

Learn More About V-Series Gearboxes

Why are Hypoid Gearboxes Ideal for Right Angle Applications?

This example will compare a traditional planetary bevel gearbox (left) with a hypoid gearbox (right), in a 5:1 gear reduction ratio.

Planetary Bevel Gearbox
By construction, a planetary bevel gearbox is the combination of an input bevel gear stage and an output planetary gear stage.  In order to achieve any gear reduction ratio, this type of gearbox always requires two or three gear stages.  In this example, the first stage is a 1:1 bevel gear ratio and the second stage is a 5:1 planetary gear ratio.  For a 3,000 RPM application, the motor speed is continued throughout the entire first gear stage, which means the input bearings and seals, gears, and output bearings and seals are all rotating at 3,000 RPM.  The actual reduction doesn't occur until the planetary gear stage.  Higher speeds throughout the gearbox means higher heat and can also result in a 50% service life de-rating for continuous applications.

Hypoid Gearbox
A hypoid gearbox on the other hand can achieve up to a 15:1 ratio with only a single gear stage.  In this 3,000 RPM application, the motor speed is immediately reduced to the final reduction speed of 600 RPM which is ideal for the gears, seals, bearings, and shaft.  A lower speed means less heat, which is important to maximizing the life and load carrying capabilities of the output bearings in a gearbox.  GAM’s Dyna Series hypoid gearbox has a 30,000 hour service life rating which is 50% more than a comparable planetary bevel gearbox.  In addition to the performance advantages of using a hypoid gearbox, as mentioned in a previous post there is also a substantial space saving benefit.  In the example above, GAM’s hypoid gearbox is 46% more compact than the planetary bevel gearbox.

The greater the face width of a gear, the greater the permissible torque

The face width of the helical gears in GAM's SPH Series are up to 70% longer than some competitor's gears, which means more tooth contact and greater overall torque density.
In order to achieve high torques, especially during shock loading or dynamic applications, the gears must be strong.  SPH gears are case hardened which imparts strength deeper into the gear compared to nitriding which hardens just the surface.  Lastly, they are ground for smooth and quiet operation as well as higher precision

GAM can match your motor dimensions

Need a gearbox but can't change your mounting interface?  GAM can take a standard gearbox design and modify it so the output dimensions match those of your motor, making installation easy.  See what else GAM can do.

GAM Product Range in Design World's August "Around the Web"

Did you get the August edition of Design World magazine?  GAM is on page 128 in the "Around the Web" section.  Use your smartphone and scan the QR code or click here for more information on our product range brochure.

3D Printing
There have been many articles out there lately discussing the ways 3D printing will revolutionize industries and the way we do things like in the article, "How 3D Printing Will Turn Homes Into Mini Factories" by Popular Science.  While the future is very bright and there is definitely enormous potential, the technology is still relatively new to many companies.

Our project engineer sees the potential and recently purchased a 3D printer for his own personal hobbies.  He recently used the printer to make a cool replica of one of our V-Series spiral bevel gearboxes to help show the possible shaft configurations and the direction of their rotation.

 

While these models are fun to play with, they can't transmit any torque or handle any radial loading.  Here are spiral bevel gearboxes that can.