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
Lifts
- DGBB Series Normal
- DGBB Series Custom
- TRB Series Metric
- Cam-Followers Series Standard
- DR-ACBB Series Standard
- DR-ACBB Series Custom
- DR-SRB Series Standard
- DR-SRB Series Custom
Lifts
The Lifting Sector (materials and people) sees the use of machinery subject to increasing demands in terms of:
- Heavy loads;
- Working conditions;
- Performance and cost efficiency;
Typical applications in this sector are the following:
- Winches for lifts;
- Container handling;
- Handling of bulk materials (coal, clay, limestone, fertilizers, cereals, etc.).
Loads Type and Bearing Choice
Many types of bearings are available that can meet different needs: starting with DR-SRB (double row spherical roller bearings) ideal for high bidirectional radial and axial loads, passing through double row angular contact ball bearings (DR- ACBB) effective even in the presence of axial and radial loads in both directions, up to Cam-Followers (rollers) able tp withstand very high radial loads, as well as axial loads deriving from misalignment.
Easily assembly
In order to facilitate assembly and disassembly, the different types of bearings are available in different executions. For example, the DR-SRB are also available with a conical bore, to be used with adapter or pressure sleeves, the Cam-Followers are equipped with a solid pin with threaded end, and the DR-ACBBs are preferred to two angular contact bearings with one row “coupled”, when the axial dimensions are limited.
Materials, Lubrication and Temperatures
The resistance of the materials to the operating conditions, typically heavy in this sector, certainly represents an important aspect, in fact the effective life of the bearing depends on this factor, in terms of useful life. In this sense, numerous technical solutions are available (both Standard and Custom) able to meet the specific application needs. For example, spherical roller bearings Custom, with rubber seals and special greases (EP-extra pressure) ideal for high loads.
Key requirements
1. Technical Analysis & Feasibility, for passing Approval on Final Customer Application;
2. Documentation & PPAP, Automotive level;
3. Couplings and Radial Clearance designed to meet assembly specifications;
4. Super pure 100Cr6 steel to increase bearing life;
5. Fine grinding to reduce surface roughness;
6. Ultrasonic cleaning combined with demagnetization treatment;
7. Different cage types (polyamide reinforced with glass fiber, pressed sheet metal or centrifuges brass) to better wrap the rolling elements, depending on the bearing size and types;
8. Special greases extremely suitable for applications subject to high loads;
9. Comparative Tests with similar product, market standard or Customized solutions.
Our challenges
1. Application requirements
- Resistance to high loads;
- Mounting specifications;
- Operation conditions;
2. Control Standards Implemented
- Automatic production line;
- Dedicated control grid;
- Storage and record of production highlights.