Hardened ground shafts
Hardened ground shafts are steel shafts the outer layer of which has been induction hardened. They are primarily known for their linear application, and are also called linear shafts. The hardened exterior and the “soft” core mean the shafts are highly durable and brittleness is prevented.
THN has a wide range of hardened ground shafts in stock consisting of shafts in trade lengths of 6000 mm to 8000 mm. The stock consists of many shafts in the most common material CF53, as well as various chrome steels and stainless steel varieties.
| Types | |||
|---|---|---|---|
| Code | Description | Metric / Inch | Dimension |
| TS | Solid shafts | Metric | 3 mm to 120mm |
| TT | Hollow shafts | Metric | 12 mm to 100mm |
| TS | Solid shafts | Inch | 1/8" to 3" |
| TD | Radial drilled shafts | Metric | 12 mm to 50mm |
| Materials | |||
|---|---|---|---|
| Steel type | Surface hardness HRC | Tensile strength N/mm2 | Surface roughness Ra max. |
| CF53 (1.1213) | min. 59 | ≥ 610 | 0.30 |
| C60 (1.0601) | min. 59 | ≥ 650 | 0.30 |
| X46Cr13 (1.4034) | min. 52 | ≥ 650 | 0.30 |
| X90CrMoV18 (1.4112) | min. 54 | ≥ 750 | 0.30 |
Other materials such as 42CrMo4 and X105CrMo17 are available on request.
Properties
Key properties of hardened ground shafts are:
- High-precision tolerances on diameter
- High-precision tolerance on roundness
- High-precision tolerance on straightness
- High-precision tolerance on parallelism
- Low surface roughness
- High wear resistance due to hard exterior
Applications
Common application of hardened ground shafts are:
- Linear applications
- General mechanical engineering
- Hinge pins for heavy loads
- Piston rods for heavy-duty applications
- Corner profiles for bending machines
- Basic material for ball screws
- Drive shafts for heavy-duty applications
Production and logistics
The range of hardened ground shafts has in stock is always at least 50 tons in trade lengths of 6 meters to 8 meters. This stock is stored in a separate warehouse. The working stock is always kept in a production hall where the shafts are manufactured by length and where processing is performed.
Part of the working stock in production hall
Storage section of hardened ground shafts
Packing section of hardened ground shafts
Download brochure
In our linear components brochures, you will find everything to do with our range of hardened ground shafts, ball bearings, bearing housings, shaft support blocks, and shaft support rails. The brochures furthermore include extensive overviews of types, sizes and finishes.
Customer service
Are you looking for shafts and you want direct contact with one of our specialists? Give us a call, we’ll be happy to help.
Call us on: +33 (0)3 72 39 51 51