FIT
Application-led
Match the tube specification to the bearing process and downstream requirements.
Product focus
Bearing-grade seamless tubes.
Through-hardening tube supply for high-volume small-bearing production, with OD 19-73 mm and wall thickness 3–8 mm.
Finished tube stockThe product fit
When the bearing line needs repeatable tube input.
Bearing steel seamless tubes are primarily used to manufacture high-volume small bearings. Microtech focuses on this application rather than a general tube-trading catalogue.
Start the commercial conversation with the OD range, material grade, finished length, annual volume and the customer’s downstream bearing process.
Request a technical discussionProduct information
Start with the facts.
Use the current product range as a starting point and include grade, tolerance, surface and inspection requirements in your enquiry.
| Product | Through-hardening bearing-grade seamless tubes |
|---|---|
| Primary use | High-volume ball-bearing manufacturing |
| Outside diameter | 19 mm to 73 mm |
| Wall thickness | 3 mm to 8 mm |
| Bearing steel grades | SAE 52100 · SUJ2 · 100Cr6 · SKF Grade 3 |
| Starting material | Round bars, processed through an in-house mother-tube route |
| Manufacturing route | Plasma cutting, all-electric induction heating, piercing, N₂ spheroidizing annealing, cold draw, pilger, straightening and finishing |
| Quality checks | 100% NDT with Eddy Current and Ultrasonic Testing, plus heat-number traceability |
What to include in an RFQ
- Required OD, ID or wall thickness
- Steel grade and applicable standard
- Finished length and cut/parting requirement
- Monthly and annual volume
- Surface-treatment and inspection requirement
- Drawing, reference sample or application details
For your production line
Turn a tube requirement into a qualified enquiry.
The right tube program starts with application fit, clear data and a focused technical conversation.
DATA
Specification-ready
Bring size range, grade, tolerance, surface and inspection data into one conversation.
ACTION
RFQ-ready
Send drawings, volumes and required dates with the technical enquiry.
Have a drawing or target volume?
Send the technical context and we’ll route the enquiry to the right conversation.