Suffixes In Deep Groove Ball Bearings

The Ultimate Guide to suffixes in Deep Groove Ball Bearings

Welcome to our blog! Today we are focusing on a topic that is of great interest to many of our customers: the suffix codes for deep groove ball bearings. These small, often overlooked markings on the bearings can provide crucial information about the specifications and characteristics of the bearing. In this post, we explain the meaning of the most common suffix codes so that you can choose the perfect bearing for your needs..

What are deep groove ball bearings?​

Before we dive into the details of the retaining rings, let’s briefly clarify the basics. Deep groove ball bearings are the most commonly used type of bearings. They consist of an inner and an outer ring, as well as balls that run between these rings. Their simple structure makes them extremely versatile and efficient in handling both radial and axial loads.

Explanation of the suffixes

Suffixes for deep groove ball bearings indicate specific characteristics or modifications of the bearing. Here are some of the most common ones and their meanings:

• ATN9: A bearing with a cage made of glass fiber reinforced polyamide, ideal for high speeds and low friction.
  
• LLU/5K: A double-sided contact seal made of rubber that offers high sealing effectiveness, combined with a lubricant suitable for specific temperature ranges.
  
• CM: A bearing clearance that lies between the normal (CN) and C3 bearing clearance classes offers a flexible range of applications.

• FT150: A bearing designed for temperatures up to 150°C, ideal for high-temperature environments.

• C3LT: A bearing with increased radial play and specified for low temperatures, making it robust against thermal expansions.

• C1-C4: These symbols represent different classes of bearing clearance. From C1 (least bearing clearance) to C4 (greatest increase in bearing clearance), they offer options for various operating conditions.

• RS, 2RS: Diese Zeichen stehen für Lager mit einer bzw. zwei berührenden Dichtungen aus Acrylnitril-Butadien-Kautschuk (NBR), die eine gute Dichtwirkung gegen Schmutz und Feuchtigkeit bieten24678.
  
• RSH, 2RSH: Ähnlich wie RS, jedoch mit einer speziellen Dichtung, die für eine verbesserte Dichtwirkung und längere Lebensdauer sorgt14678.

• RSL, 2RSL: Diese Zeichen deuten auf eine reibungsarme Dichtung hin, die weniger Widerstand bietet und somit für Anwendungen mit höheren Drehzahlen geeignet ist3678.

• Z, ZZ: Ein Lager mit einer bzw. zwei Deckscheiben, die eine nicht berührende Dichtung bieten und somit eine geringfügige Dichtwirkung gegenüber Verschmutzung ermöglichen, ohne die Drehzahlgrenze wesentlich zu beeinflussen2
• S: Corrosion-resistant bearing

Naming scheme​

Das Benennungsschema für Rillenkugellager folgt einem festgelegten Muster, das aus dem Basiskennzeichen und den Vor- bzw. Nachsetzzeichen besteht. Das Basiskennzeichen gibt die Hauptabmessungen und die Bauart des Lagers an. Die Nachsetzzeichen, die nach dem Basiskennzeichen folgen, spezifizieren die besonderen Eigenschaften des Lagers39.

• Example: S6205 2RS.C3
• S: Corrosion-resistant bearing
• 6205: Basic designation that specifies the main dimensions (bore diameter 25 mm, outer diameter 52 mm, width 15 mm)
• 2RS: Double-sided rubber seal
• C3: Erhöhte radiale Lagerluft8

Diese Informationen sind in den Normen DIN 623 und ISO festgelegt, die die Grundlagen für die Bezeichnung und Kennzeichnung der Wälzlager definieren5.Die Verwendung von Nachsetzzeichen ermöglicht eine präzise Spezifikation der Lager, um den Anforderungen verschiedener Anwendungen gerecht zu werden.

Important Tips for Selection

When selecting the right deep groove ball bearing, it is important to not only understand the suffix codes but also to consider the specific requirements of your application:

1. Determine the load requirements: Choose bearings that can handle both the radial and axial loads of your application.
2. Consider the operating environment: Factors such as temperature, humidity, and potential contaminants should be taken into account when selecting the bearing material and seals.
3. Consult Experts: Unsure about your choice? Our experts are happy to assist you in selecting the optimal storage solution.

Conclusion

The correct interpretation of the suffix codes for deep groove ball bearings can be crucial in maximizing the performance and longevity of your machines. We hope this guide helps you make an informed decision. If you have any further questions, we are always available – just contact us! Continue to visit us for more useful tips and in-depth insights into the world of bearings. Your success is our motivation!