How to read Tecma Drive codes: structure, prefixes and suffixes

When you need to replace a slewing ring on a crane, an excavator or industrial equipment, the manufacturer's code is the key to getting the exact part. In the case of Tecma Drive, each designation summarizes key technical information: mounting type, raceway geometry, roller arrangement and other construction features.

Correctly interpreting that code saves you from costly mistakes: ordering a slewing ring that doesn't fit, can't support the load or has a different hole pattern. That's why in this guide we show you how to read Tecma Drive codes, with real examples from our slewing ring line.

If you work in maintenance or purchasing, mastering this nomenclature will save you time and give you more confidence when requesting a quote. And if you have doubts, you can always ask us: we are an official Tecma Drive distributor in Argentina.

Tecma Drive slewing ring codes usually have an alphanumeric format divided into blocks. For example, let's take the code TD-W9-RA. The first block, TD, identifies the Tecma Drive brand. It is a prefix common to all its products.

The second block, in this case W9, corresponds to the specific series or model of the slewing ring. This part of the code is related to size, load capacity and internal geometry. Each series has its own characteristics that make it suitable for certain applications.

The third block, RA, is a suffix that indicates some construction variant: it may refer to the gear type (internal or external), surface treatment, seal or the arrangement of the mounting holes. In the examples below, the suffixes RL and RA appear on different models.

The prefix TD is present in all Tecma Drive slewing ring codes we supply. It is the brand abbreviation and does not vary between models. After the prefix, a combination of letters and numbers defines the series.

As for suffixes, we find designations such as RA and RL. Although the exact meaning of each letter may vary by series, in general these suffixes indicate the type of rolling element or the gear configuration. For example, RL could refer to a slewing ring with cylindrical rollers and external gear, while RA could indicate a variant with a different roller profile or internal gear.

It is important not to assume the meaning of a suffix without checking the model's data sheet. So if you have a slewing ring with a code that doesn't appear in our examples, we recommend asking us with the full code or a photo of the identification plate.

Let's look at three real Tecma Drive slewing ring codes we handle at MR Accesorios Industriales: TD-W9-RA, TD-R7-RL and TD-E7-RL. In all three, the TD prefix indicates the brand. The W9, R7 and E7 series correspond to different sizes and load capacities.

The suffixes RA and RL appear in all three examples. As we mentioned, these suffixes are associated with construction features. For example, the W9 series with RA suffix could have a raceway diameter and hole pattern different from the R7 series with RL suffix.

If you are replacing a slewing ring and have the old code but can't find the same one in the current catalog, don't worry: manufacturers sometimes update designations. In that case, we help you identify the equivalent slewing ring based on the main dimensions: outer diameter, inner diameter, total height and hole pattern.

When you ask us for a quote, the most useful thing is to give us the full code of the slewing ring, as it appears on the plate or in the equipment manual. With that data, we can quickly verify if it's a model we handle and give you an accurate answer.

If you don't have the code, you can also send us a photo of the part with a measurement reference (for example, a ruler next to it). With that, our technical team can identify the model or suggest a compatible alternative.

Remember that we are an official Tecma Drive distributor in Argentina, so we work directly with the manufacturer. That allows us to offer you technical advice and support on every purchase.

A common question is whether the code includes information about the slewing ring material. In general, the designation does not specify the steel used, but it can indicate whether the slewing ring has anti-corrosion treatment or a special seal. To know those details, it's always best to check the model's technical data sheet.

Another frequent question is whether you can order a slewing ring with the same code but with modifications. Tecma Drive offers some customization options, such as special gears or threaded holes. If you need a variant, we guide you on feasibility and the corresponding code.

Finally, many customers ask if Tecma Drive codes are compatible with those of other brands. The answer is no: each manufacturer uses its own nomenclature. However, based on dimensions and load capacity, we can look for an equivalent Tecma Drive slewing ring for your application.

At MR Accesorios Industriales, based in Buenos Aires, Argentina, we carry the complete line of Tecma Drive slewing rings. If you already have the code, write to us via WhatsApp or email and we'll send you a quote shortly.

If you're not sure about the code, send us a photo of the slewing ring or the main dimensions. Our technical team helps you identify the correct model and points you to the most suitable alternative.

Don't let a wrongly ordered replacement part happen: ask us before buying. We are an official Tecma Drive distributor and we advise you with no obligation.