Product information


According to the liability of the manufacturer for its products defined in the Product Liability Law (§4 Prod-HaftG), the following information concerning wheels and castors must be taken into account.

Failing to take this information into account exempts the manufacturer from its duty of liability.

1. The product information and intended use
of wheels and castors in the sense of this definition are generally exchangeable components which can be fitted to suitable equipment, furniture and transport systems, or similar products, in order to render them mobile. This product information refers to castors and wheels, in particular to passively steering castors (swivel castors), for non-automatically mobilised vehicles and equipment, hereafter referred to as „objects“, which in general do not move faster than walking pace and are not in continuous operation. Wheels and castors in the sense of this product information may be classified according to the following areas of application:

Residential sector:
e.g., seating, furniture

Service sector:
• General service applications, e.g., shopping trolleys, office equipment
• Hospitals, e.g., hospital beds

Industrial sector:
e.g., transport equipment (middle to heavy load bearing capacity)
To comply with intended use, proper assembly is particularly important:

• The product must be firmly fitted to the object at all provided fitting points.
• The object must have sufficient strength at these points.
• The function of the product may not be impaired or changed during assembly.
• Swivel castors must be assembled so that their swivel axles are positioned vertically.
• Rigid castors must be assembled with their wheel axles in alignment.
• Only swivel castors of the same type may be fitted to an object. If rigid castors are also fitted, only castors recommended for the purpose by the manufacturer may be used.


Products used in damp environments, exposed to direct weathering, used near the sea or in aggressive environments that induce corrosion must be specified in a specialised version. Products used in temperatures below 5°C and above 30°C are to be specified in specialised versions. Standard products should never be used with nominal loads under such conditions. Wheel, casing, locks and axle accessories represent a functional unit. Liability is only granted for our original products. All possible loads must be known for the selection of castors, otherwise loads are to be estimated with sufficiently added safety factors


2. Product specifications
Where product specifications are not explicitly stated in our catalogues, brochures, specification sheets, etc., the requirements placed on our castors (and their components) must be agreed with us. Guidance is provided here by EN standards 12527–12531.

3. Product maintenance
Depending on the respective requirements, wheels and castors must be regularly serviced: through lubrication of the bearings and readjustment of detachable connections. Only cleaning agents may be used that do not contain substances that cause damage or corrosion. Castors (and their components) must be replaced as soon as functional impairment occurs.

4. Misuse
Misuse – i.e., utilisation of wheels and castors for unintended purposes – is defined as, for example:

  • use of wheels and castors for loads heavier than the maximum load capacity specified in the catalogue
  • use on unsuitable, uneven floors
  • foreign objects entering the wheel tread
  • use in temperatures that are too high or too low
  • moving an object with locked castors by force
  • exposure to a caustic environment
  • excessive impact and fall stress
  • moving wheels and castors at excessive speeds
  • exposure to lateral forces
  • modifying the products without the agreement of the manufacturer

Castor brakes in all series are not intended to provide transport and loading safety in trucks, cars and other similar vehicles.

Non-compliance with this information can lead to damage of the locking function.

5. Information and instruction obligations
In compliance with the information and instruction obligations, as well as maintenance work according to the product liability law, the following documentation is available:


• For traders: Catalogues with product information
• For the processing industry: Catalogues with product information
• For users: Product information
To ensure the functionality of the wheels and castors,
• the trade sector is obliged to heed the product information (points 1-6) and, where necessary to request them from the manufacturer and forward them to the processing unit;
• the processing sector is obliged to heed the product information (points 1-6) and, where necessary, to request them from the manufacturer or trade sector and forward them to the user.

6. Dimensions
Dimensions indicated in this catalogue are approximations, as is usual in this industry.
Design is subject to change where modifications represent technical advancement.

Technical information

We move the most diverse products with our castors and wheels – nationally and internationally. With innovative solutions and well-engineered products, we continually set benchmarks and inject new momentum into the market. At the same time, we‘re always aware of current standards and legal requirements. You can be assured that by using STEINCO products, you always implement the latest technology. In this chapter, we‘ve gathered together in one place all the important information about STEINCO castors and wheels. Alongside information about products and intended usage, you will also find valuable advice concerning automated decontamination and the electrical conductivity of our castors, as well as about REACH and RoHS guidelines.

Electric conductivity (ESD)

The electric conductivity of the wheels and coatings can change due to residue deposits – or through chemical and mechanical stress – in such a way as to exceed values defined as acceptable in the standards. In particular, dust, dirt, paint, acids, alkali, overloading and impacts can lead to a decrease, or even a complete interruption, in the discharge of electric/ electrostatic energy into the floor. Due to the abundance of factors unknown to us that affect our products when in use, confirmation of electric conductivity refers exclusively to compliance with the defined acceptable values when the castors and wheels are new. For this reason,conductivity during operation must be tested at regular intervals by the user.

Automated decontanimation

STEINCO hospital bed castors in the series 558W/559W, 568W/569W and 758W/759W PRIMUS are suitable for automated decontamination subject to applicable regulations such as the „automated decontamination“ guidelines from the AK-BWA. Metal components at risk of corrosion are fitted with the corresponding surface covers. Many years of practical experience and washing trials confirm their suitability.

Based on the AK-BWA, the follows standard values apply:
• Cleaning/disinfection 2 minutes at max. 70°C
• Rinsing 20 seconds at 85°C
• Maximum PH values of the washing solution: 5 – 9

Inappropriate washing conditions can lead to premature impairment of certain functions.

Furthermore, care should be taken to protect the area around the mounting pin from strong washing agents. Castors are intended for use at temperatures of 20°C. For this reason, an appropriate cooling period is required following the washing process before the castors can be put back to their intended use. This also applies to the lock. If used too soon, the heated plastic components may set under the switching pressure, leading to a permanent impairmentof function. Cleaning by using wipe disinfection is possible without any restrictions.

More product and technical information you can find under Downloads.