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Trierra LTD is an authorized distributor of world-renowned manufacturers of rolling bearings.

Meet our partners



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KINEX BEARINGS is a company dealing in production of rolling bearings for different segments of industry. It is a part of 2.1 € billion CK Birla Group and currently supplies it’s products over 80 countries around the world. KINEX is on the first place in a chart of  top suppliers of special bearings for textile industry and european leader in production of cylindrical roller bearings for railway vehicles.

Logo of partner company Timken


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Timken is undoubtedly a world leader in the sphere of tapered roller bearings, not only regarding the manufactured types, nomenclatures, size diapason, but also in the theory behind them. The fact that every firm, including the largest ones producing tapered roller bearings in inch dimensions, uses the size plans, the accuracy classes, the dimension margins, the deviations from the geometric norm and the marking systems of Timken.

Proven Quality

In its 25 years on the market, Trierra has had numerous partners from various countries, with different manufacturing capabilities, with various traditions.

We believe that whether a bearing is high-quality or not is determined not only by the coverage of the appropriate technical or state requirements for its parameters.


The quality of the main components, which are usually alloyed refined steels; more precisely – their chemical composition, cleanness, and structure are incredibly important. This is why all leading bearing manufacturers have close ties with the companies which produce the steel they use.


In their company standards, a number of additional parameters are included, for the control of which special measurement equipment is provided. Those procedures provide an additional guarantee of the quality of the product – something, which is not widespread.


Such powerful companies, leaders in the bearing industry, are our current partners.

Logo of company ASAHI, of which Trierra LTD is a distributor
Logo of company ZWZ, of which Trierra LTD is a distributor

We continue to successfully offer appropriate solutions for every use of the rolling bearings, commensurate with the constructive requirements and differences of the various bearing units.

Industrial Bearings
Automotive Bearings
Oil Seals

Plovdiv, 4004
St. Byalo More 2

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