JFK roller recirculating linear guides
JFK linear guides
- Extremely high load capacity
- Maximum rigidity
- Shock and vibration resistance
JFK roller recirculating linear guides, also known as roller guides or roller linear guides, are a high-performance solution for linear motion systems requiring high load capacity, rigidity, and precision. Unlike ball versions, they use cylindrical rollers that provide a larger contact surface, allowing them to support higher loads and offer greater resistance to deformation.
Particularly suitable for heavy-duty applications and machinery where stability and precision must be maintained even under high loads, JFK roller recirculating linear guides offer very high load capacity thanks to the rollers’ line contact, high rigidity, excellent resistance to shock and vibration, and smooth, controlled linear motion even under the most demanding operating conditions.
Performances
Design and performance features
Cylindrical recirculating rollers and hardened profiled rails for the optimal combination of load capacity, rigidity, and precision in the most demanding applications.
Load
Extremely high load capacity for heavy-duty applications The line contact of cylindrical rollers provides a significantly larger contact surface than balls, allowing much higher loads to be supported in all directions.
Rigidity
Maximum structural rigidity of the system The line-contact geometry minimizes deformation under load, ensuring dimensional stability and positioning accuracy even under high loads.
Shock and vibration resistance
Suitable for the most demanding applications The robust design and high dynamic load capacity make these guides particularly resistant to shock, vibration, and impact loads typical of heavy-duty machining.
Precision
Smooth operation even under heavy loads Despite their high load capacity, hardened and ground profiled rails ensure smooth motion and positioning accuracy comparable to ball recirculating linear guides.
Preload
Adjustable to eliminate play Available in different preload classes to eliminate internal play and further increase system rigidity according to the expected loads and operating conditions.
Mounting
Roller recirculating linear guide installation
Installation requires the specified flatness and alignment tolerances of the rail and carriage mounting surfaces to ensure the stated load capacity and positioning accuracy are maintained.
Installation Mounting
- Direct rail fixingThe rail is secured using through-bolts on a machined reference surface with the flatness required for the selected accuracy class.
- Carriage installation with preloadThe carriage (or block) is installed with the preload specified for the application, checking for the absence of play and smooth, consistent movement along the entire travel.
Technical data
- Load
- Extremely high load capacity for heavy-duty applications
- Rigidity
- Maximum structural rigidity of the system
- Shock and vibration resistance
- Suitable for the most demanding applications
- Precision
- Smooth operation even under heavy loads
- Preload
- Adjustable to eliminate play
Applications
Applications
Components and application support for every industrial environment.
Heavy-duty machine tools
CNC machining centers, presses, and large machinery where the loads involved exceed the capacity of ball recirculating linear guides.Presses and molding systems
Applications involving high loads and impact forces, where rigidity and shock resistance are top priorities.
Heavy-duty industrial automation
Material handling systems for heavy loads in high-capacity production lines and automated systems.
04 – Earthmoving machinery and heavy-duty equipment
Applications in harsh industrial environments, with high dynamic loads and a need for maximum structural reliability.Documents data
Contacts
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Related products
Please also consider these alternatives: When the load does not require maximum rigidity, ball recirculating linear guides offer smoother and quieter motion while maintaining the same level of precision. For converting rotary motion into linear motion in combination with linear guides. For linear motion on cylindrical shafts as an alternative to rail-mounted linear guides.
