
We – Kunststofftechnik ROS – are a medium-sized, family-run company and part of the ROS Group. We manufacture bearing cages and other rationally symmetrical technical plastic components for the global roller bearing industry.
We offer:
High flexibility
Our own ROS Group tool making facility
Approved supplier for the Deutsche Bahn (the German railway operator)
Decades of experience in manufacture of injection moulding tools for plastic roller bearings
Know-how in the processing of a wide range of technical and high-tech materials in injection moulding

PROJECT MANAGEMENT
EXTENSIVE KNOW-HOW AND CUSTOMER-ORIENTED
Professional project management is central to our customer-orientated approach. From the initial offer phase, through the project implementation, and customer support extending until series production, our project management team are on hand as consultants providing expert advice.
From the initial stages of the project, we provide improvement recommendations and identify optimisation potentials in your development process.
You profit from our know-how in the fields of:
Know-How
ManufacturabilityROS-KT
We evaluate what is possible
Know-How
Robust designROS-KT
Our designs are built for durability.
Know-How
Competent designROS-KT
We offer “Plastic-compatible” designs.
Know-How
Material selectionROS-KT
We advise you on available materials!
Know-How
RequirementsROS-KT
The right plastics for your requirements (e.g., temperature, strength, resistance)!
Know-How
TribologyROS-KT
Reduction of friction and wear-and-tear – improved tribology thanks to plastic cages.
Know-How
Cost OptimisationROS-KT
We optimise costs (Design to Cost)!
Know-How
PrototypesROS-KT
We offer injection moulding prototype production.
TOOLMAKING
TOOLMAKING AT ROS GROUP
High-quality toolmaking is an important factor. We often manufacture complex and cost-intensive mechanisms and tools. These tools are used in the series production of components. Our components are produced using high-precision machine tools. We have both standard tools and tools customised to meet customer-specific requirements. This enables us to offer our customers high-quality and innovative product solutions. From the initial stages of the project, we provide improvement recommendations and identify optimisation potentials in your development process.
CUSTOMER SERVICE
FLEXIBILITY IS A PRIORITY
As a medium-sized company, flexibility is particularly important to us. Short decision-making processes and a flat hierarchical structure make it possible for us to meet challenges and to react rapidly to the wishes and needs of our customers. Our friendly, motivated, and competent employees, supported by an ERP system, are on hand to provide assistance.
Benefit from a wide range of advantages!
PRODUCTION
EXPERIENCE COUPLED WITH
STATE-OF-THE-ART TECHNOLOGY
STATE-OF-THE-ART TECHNOLOGY
We are able to draw on decades of experience in the field of injection moulding of plastic cages.
As a customer, you also benefit greatly from this. Our specialists, our modern and high-performance machinery, and our consistent quality management ensure the continual adherence to the characteristics and features of your products.
We produce your customised injection moulded components in single and multi-component processes ranging from 0.1 to 500 grams using all types of technical and high-tech plastics.
QUALITY
QUALITY WITH A CAPITAL Q AT ROS
To allow us to meet the ever-increasing demands placed by our customers in terms of quality,
we use modern technology and our extensive quality-related know-how. We plan, monitor,
and analyse our processes using a modern CAQ system.
Professional techniques are available for approvals, series-accompanying controls,
and initial samplings in accordance with PPAP:
- 3D measuring devices (CMM)
- Tension/Pressure Testing Machine
- Contourograph
- Measuring Microscopy and
- all commonly used hand-held measuring instruments