Manufacturing different grades of steel involve more than simply altering the chemical composition of the metal. The particular manufacturing process can also significantly impact the final product. At Grob Inc., we specialize in the manufacture of cold-formed products. Our experienced team of engineers can manufacture custom spline shafts, spur gears, broached sleeves, timing belt pulleys, flanged bushings, and more. Learn more about our cold forming process and capabilities here.
The Grob Rolling process uses custom equipment that Grob Inc has developed over the last century. This equipment combines the process of standard cold forming and forging. It uses formed tooling that strikes and rolls over the surfaces of a round bar. This causes the material to move or flow into the correct shape for the final desired profile. This is all done cold or at rooming temperature giving all the advantages for cold forming and cold forging.
The Grob Rolling Process makes metal stronger by rearranging its grain structure over the whole profile. Most strength is gained in the profile of the material, where strength is most important. The cold-forming process produces a very high-quality surface finish as well These properties give many advantages to the final product.
Grob Cold-rolled steel products have many advantages over machining products, such as:
At Grob Inc., we provide custom manufacturing capabilities to meet unique needs. Our team of experts has the skills and advanced cold forging machines to manufacture custom products to almost any customer specifications. Here are the sizes, profiles, and materials we can work with:
| Size | Diameter of 0.25” to 6” |
| Length | Standard size is 6′ to 12′, but we can manufacture up to 24ft |
| Tolerance | This varies on the product, but is usually between 0.001”-0.008” |
| Material | Steel, Stainless, Brass, Aluminum, Copper, as well as most materials with an HRC less than 44 |
Here are some of the cold forged parts we provide at Grob.
We manufacture Grob Standard spline shafts and custom spline shafts for use as replacement parts or proprietary components. Grob cold formed splines will offer maximum torsional strength, even load distribution, and higher power transmission. We can make them out of almost any material and at any length to fit your application and needs.
Our standard cold formed spur gears are available in aluminum alloys and mild to medium carbon steel. We also customize spur gears to meet different customer specifications, such as minor and major diameters, involute profiles, backlash, and other materials.
Timing belt pulleys serve various motor transfer applications, such as transferring rotary motion from one shaft to the next and decreasing or increasing speed. Given the important role they play, they must be designed carefully to reduce drag and vibration. You can select the materials and design per your specifications and we can produce it. Our machines can produce small pulleys for printers and other small equipment or large pulleys for heavy industrial equipment.
Our custom heat exchanger tubes and drums are fluted to increase surface enhancement or to lower liquid surface tension. These can be made from many different materials and lengths depending on the needs with a limitless amount of profile possibilities.
If it fits in our capabilities we can make it. Square, hex, lobes, and an endless combination.
Ordering cold-formed products can save you time and money while enhancing part quality. At Grob Inc., you can choose from more than 2,100+ profiles. If you do not find the profile you need, we can produce custom profiles to meet your exact specifications. To learn more about our capabilities, contact us online or call us today at (262) 377-1400. If you’re ready to start your order, request a quote.