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Tecma Drive in solar and wind energy: slewing rings and slewing modules for generation
How to choose Tecma Drive slewing rings and slewing modules for solar trackers, wind turbines and generation equipment, and what data to send for a quote.
TECMA DRIVE catalog by part number
Technical team at MR Accesorios Industriales · Updated on October 23, 2026

What Tecma Drive contributes to generation equipment
Tecma Drive in solar and wind energy comes into play when equipment needs to rotate precisely and withstand combined loads. The slewing rings and slewing modules from this brand are used in solar trackers, wind turbines and other generation systems. They are components that combine bearing, gearing and mounting structure in a single part. That simplifies design and assembly compared with solutions using separate parts.
In a solar tracker, the slewing ring allows the panel to follow the sun's path during the day. In a wind turbine, the nacelle yaw system depends on a large-diameter slewing ring. In both cases, the part works outdoors, with wind, dust and temperature changes.
MR is the exclusive representative of Tecma Drive in Argentina, so you can order these components directly from us. We work with slewing rings and slewing modules for energy. Whether you are in maintenance or on a new project, we help you identify the correct part from the code, dimensions or a photo.
Slewing rings for solar trackers
Tecma Drive slewing rings are large-diameter bearings with external or internal gearing, designed to withstand axial, radial and tilting loads. In a solar tracker, the slewing ring connects the fixed structure to the moving one and allows rotational movement. The gearing can be driven by a gearmotor or a worm screw, depending on the equipment design.
When ordering a slewing ring for a solar tracker, it is advisable to identify the ring diameter, the type of gearing and the mounting hole pattern. Many slewing rings have the code engraved on the outer ring or on a metal tag. If it cannot be read, measurements can be taken with a caliper: outer diameter, inner diameter, total height and gear pitch. With that data we quote the exact option.
A common mistake is ordering only by outer diameter, without verifying the gear module or the number of teeth. That can lead to a slewing ring that does not mesh with the existing pinion. So if you have doubts, send us a photo of the part and the pinion. At MR we tell you what additional data we need to ensure compatibility.
Slewing rings for wind turbines
In wind turbines, the slewing ring is used in the yaw system and, in some models, in pitch control. The yaw slewing ring supports the weight of the nacelle and wind loads while allowing controlled rotation. It is a critical part for turbine safety and efficiency.
Slewing rings for wind turbines usually have external gearing and through or threaded holes for fastening with high-strength bolts. The Tecma Drive code may be engraved on the ring, but on equipment with years of service it is sometimes erased. In that case, it can be identified by dimensions and hole layout. A photo of the assembled unit also helps.
When replacing a yaw slewing ring, the condition of the drive pinion and the housing must be checked. If the pinion is worn, it should be replaced together with the slewing ring to avoid premature wear. At MR we quote the Tecma Drive slewing ring and advise you on the associated components that should be checked before assembly.
Tecma Drive slewing modules: the integrated solution
Tecma Drive slewing modules are slewing assemblies designed to simplify assembly and maintenance. They are used when the rotational movement needs to be solved with a pre-assembled unit. In energy equipment, they appear in tracking and orientation systems.
A slewing module is ordered by its full code, such as TD-E7-RL or TD-W3-RA, which indicates the size and configuration. It can also be identified by output torque, rotation speed and mounting type. If you do not have the code, a photo of the nameplate or the assembly helps determine the model.
When mounting a slewing module, the bolt tightening torque must be respected and the support surface must be checked for flatness. An uneven support generates additional loads that shorten the bearing's service life. At MR we guide you with the mounting recommendations so that the module works under the conditions intended by the manufacturer.
How to identify a Tecma Drive slewing ring or module
To order a Tecma Drive slewing ring, the most direct way is to read the code engraved on the ring. Example codes such as I.650.20.00.C or I.616.20.00.B identify the series and size. If the code is illegible, measurements can be taken: outer diameter, inner diameter, total height, number of teeth and apparent module.
On slewing modules, the code is usually on a label attached to the body or on the motor plate. Codes such as TD-E9-RL or TD-W3-RA allow exact identification. If the label is lost, the flange diameter, the distance between holes and the output torque can be measured if known from the equipment design.
It is always advisable to send photos of the part, where it is mounted and any visible plate or engraving. With that, at MR we help you confirm the model and quote the exact replacement. You do not need to know how to interpret all the numbers: with the information you send us, we do the identification.
Common mistakes when ordering or mounting these components
A frequent mistake when ordering a slewing ring is confusing external gearing with internal gearing. Even if the diameter is similar, the mesh with the pinion changes completely. Another mistake is not checking the type of mounting holes: some are through holes and others are threaded, and that affects assembly.
On slewing modules, sometimes they are ordered only by motor power, without considering output torque. Two modules with the same power can have a different reduction ratio and not move the same load.
During assembly, a common mistake is not cleaning the support surface well before placing the slewing ring or module. Dirt or burrs create high points that concentrate stresses. At MR we remind you of the basic preparation steps so that the part sits properly and works evenly.
How to get a quote for Tecma Drive slewing rings and modules at MR
To get a quote for a Tecma Drive slewing ring or slewing module, write to us via WhatsApp or email with the part code if you have it. If you do not have it, send us the main dimensions and a photo. With that we prepare the quote and reply as soon as possible.
If you are replacing a part from another brand, you can send us the original code and we will tell you the Tecma Drive equivalent. At MR we quote slewing rings and slewing modules for energy, so we can offer you the option that best suits your equipment.
We also help you if you are in the design stage of a solar tracker or wind turbine. With the load and dimension data, we recommend the appropriate slewing ring or module. Write to us and let's discuss your project.
Frequently asked questions
Which Tecma Drive slewing ring does a solar tracker use?
It depends on the panel size and the drive system. The safest way is to read the code engraved on the ring or send a photo with dimensions. At MR we help you identify the exact model.
How do I identify a Tecma Drive slewing module without a label?
The flange, the distance between holes and the output torque can be measured if known. A photo of the assembled unit also helps. With that data we quote the replacement.
Is MR the exclusive representative of Tecma Drive in Argentina?
Yes, MR is the exclusive representative of Tecma Drive in Argentina. We quote slewing rings and slewing modules for energy applications and other industries.
Can I order a Tecma Drive slewing ring by dimensions if I do not have the code?
Yes, with outer diameter, inner diameter, height, number of teeth and apparent module we can identify the slewing ring. A photo of the part and the pinion helps confirm.
Do Tecma Drive slewing modules include a motor?
It depends on the model. They are ordered by their full code, such as TD-E7-RL or TD-W3-RA; send us the code or a photo of the plate and we will confirm the configuration when quoting.
Products with photos in the catalogue
Keep reading
- Tecma Drive Slewing Rings: Product Guide in Argentina
Tecma Drive slewing rings are large-diameter bearings for applications requiring rotation and support of combined loads. Learn about their features and how to get a quote.
- How to Read Tecma Drive Codes: Structure, Prefixes, and Suffixes
Understanding the designation of a Tecma Drive slewing ring is key to ordering the correct replacement. We explain the code structure, what prefixes and suffixes mean, and show real examples.
- Tecma Drive by industry: where it is used, how to select it, mounting and maintenance for lasting performance
Tecma Drive slewing rings are critical components in equipment requiring rotation of heavy loads. Learn about their typical applications, how to choose the correct model and best practices for mounting and maintenance.
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