For four-row linear recirculating ball bearing and guideway assemblies KUVE, there are not only special coatings but also special materials:

• corrosion-resistant steel
• amagnetic steel
• end pieces made from metal
• ceramic rolling elements.

All metal parts in KUVE..-B-RB are made from corrosion-resistant martensitic steel, Figure 1. Due to the special quench and tempering process as well as surface treatment, this material has high corrosion resistance. It is therefore also suitable for use in aqueous media, heavily diluted acids, alkalines or salt solutions.

These guidance systems have the following advantages:

• they achieve basic load ratings equivalent to 70% of the standard values
• they are available in all accuracy and preload classes
• corrosion-resistant carriages can be used in any combination with the standard guideways, allowing replacement without any restrictions
• the existing range of accessories can be used to its full extent
• the complete sealing arrangement is already integrated.

The guidance systems are suitable for clean rooms and applications in electronic component manufacture as well as in the pharmaceutical and food industries.

The suffix is RB; see Ordering designation.

The ordering designation for the guidance system KUVE25-B with two carriages, accuracy G3, preload class V1 and guideway length 1300 mm is:

• KUVE25-B-W2-G3-V1-RB/1300

KUVE15-B and KUVE25-B; other sizes available by agreement.

KUVE..-B-AM is made from corrosion-resistant amagnetic steel, Figure 2. Due to the special hardening process, the material achieves a hardness suitable for use in rolling bearings without developing a material structure that creates magnetic properties.

Amagnetic guidance systems have the following advantages:

• all metal parts are made from corrosion-resistant steel
• they achieve basic load ratings equivalent to 60% of the values for the standard guidance system
• the magnetic permeability is very low (μ_r ＜ 1,02)
• they are available in all accuracy and preload classes
• they can be used in any combination with the standard guideways, allowing replacement without any restrictions (standard guideway, corrosion-resistant or amagnetic guideway)
• the existing range of accessories can be used to its full extent
• the complete sealing arrangement is already integrated.

Since no additional anti-corrosion coating is necessary, the guidance systems are highly suitable for use in clean rooms and the manufacture of electronic components, medical equipment and the food industry.

The suffix is AM; see Ordering designation.

The ordering designation for the amagnetic guidance system KUVE25-B with two carriages, accuracy G3, preload class V1 and guideway length 500 mm is:

• KUVE25-B-W2-G3-V1-AM/500

The maximum single-piece length of the guideways is 750 mm.

Amagnetic guidance systems are available by agreement.

KUVE..-B-MKS has an end piece made from corrosion-resistant steel, Figure 3.

The metal end pieces:

• can be combined with amagnetic guidance systems
• can be used, due to their high strength compared to plastic designs, in applications where a particularly robust construction is required
• are resistant to gamma radiation
• are resistant to temperatures up to +150 °C
• are suitable for use in vacuum and clean rooms
• are available for all accuracy and preload classes
• are unsealed in the standard design
• are supplied as part of a guidance system with preservative only.
  Special lubricants can be used by agreement
• can be used with an integrated complete sealing arrangement and the range of accessories depending on the operating conditions (for example, temperature).

Due to the increased strength of the end piece, the guidance system is particularly suitable for extreme applications, for example at high temperatures or under radiation.

The suffix is MKS; see Ordering designation.

The ordering designation for the guidance system KUVE25-B with metal end piece, one carriage, accuracy G2, preload class V1 and guideway length 1500 mm is:

• KUVE25-B-W1-G2-V1-MKS/1500

KUVE15-B and KUVE25-B; other sizes available by agreement.

In combination with coatings or special materials, ceramic rolling elements can be used in hybrid bearings.

Ceramic is light, has a long operating life and offers significant advantages in many applications. Ceramic balls are characterised by their high hardness, rust resistance and electrical insulation.

KUVE..-B-HCB has ceramic rolling elements, Figure 4.

The guidance systems with ceramic rolling elements:

• have a longer rating life, depending on the application
• achieve basic load ratings equivalent to 70% of the standard values
• have lower bearing temperatures
• require less lubricant
• can be used to achieve corrosion-resistant guidance systems in combination with corrosion-resistant or coated saddle plates and guideways
• do not induce any magnetism between the rolling elements
• do not conduct electrical current
• allow higher speeds when used in combination with appropriate guidance system components
• can be fitted with the existing accessories and are interchangeable with the standard range.

Due to their amagnetic characteristics, linear recirculating ball bearing and guideway assemblies with ceramic rolling elements are used in many applications in medical equipment, laboratories and clean rooms as well as in the manufacture of electronic components.

The suffix is HCB; see Ordering designation.

The ordering designation for the guidance system KUVE25-B with two carriages, accuracy G3, preload class V1 and guideway length 250 mm is:

• KUVE25-B-W2-G3-V1-HCB/250