Custom bearings?
The Technical Assistance Service of Silvio Colombo S.p.A. is able to develop customized products and services both in co-design with the customer's technical department and in complete autonomy based on the customer's requests.
Bearings for
Sport & Fitness
- DGBB Micro Series
- DGBB Thin Series
- DGBB Normal Series
- DGBB Electric Motor Quality
- ACBB Normal Series
- Self-Aligning Bearing
Sport & Fitness
The Sport & Fitness Sector is characterized by different needs of individual users, in fact the equipment and machinery can be divided:
- for personal use (home appliances) or for use in sports centers;
- for amateur use or for professional athletes;
- by function performed (multifunctional machinery).
Accuracy of the work performed
Starting from Normal Clearance, both Standard solutions with C2 and C3 clearance and Customized solutions with Selected Radial Clearance range are available, in order to allow high precision and motion control.
Design of the internal geometries, roughness and super-finish of the raceways
The maximum smoothness of the bearing is an essential requirement in this sector where the main aim is always to optimize performance, both a professional athlete and an amateur. Therefore, the specific design of the raceways allows for better sliding (and reduction of friction) between balls and bearing races (inner and oute rings) and the execution of internal grinding must necessarily be subjected to strict control along the automated production chain.
Greasing & Cleaning Conditions
Before assembling the different components of the bearing, bearing parts go under 3 ultrasonic washes in the washing machine. Furthermore, the demagnetization process prevents the metallic dust produced (in solid machining) from taking root on rings and balls. The result is an extremely clean process suitable for greasing: this occurs, on both sides, by means of controlled release nozzles, in order to prevent excessive or limited quantities of injected lubricant.
Key requirements
1. Super pure 100Cr6 steel to increase bearing life;
2. Super-finishing to reduce surface roughness;
3. Fine grinding to obtain P5 or P4 tolerances on the raceways;
4. G10 grade balls to reduce friction;
5. Ultrasonic cleaning combined with demagnetization treatment;
6. Extremely refined lubricating greases to reduce startinng and running torque;
7. Different Seal design: no contact seal, with one or more sealing lips;
8. 100% control of noise and vibrations, along the production process;
9. Maximum starting already from the minimum rotation speed.
Our challenges
1. Minimum Friction for Maximum Smoothness
- High machinering execution;
- Lubricated injected in a clean environment;
- 100% selection at the end of the line;
2. Control Standards Implemented
- Automatic production line;
- Dedicated control grid;
- Storage and record of production highlights.