Linear Bearings and Guidance Systems
Linear Bearings, Guides, Rails & Precision Motion Components
Bearing King supplies a comprehensive range of linear motion components and linear bearings for machinery requiring smooth, accurate and controlled movement.
From straightforward linear bearing applications to high-precision automation and machine-building systems, our expanding linear motion range is designed to support engineers, manufacturers, maintenance teams and OEMs across a wide variety of industries.
Our range includes products from leading linear motion manufacturers and is continually expanding as we add new sizes, designs and technologies.
Whether you're replacing an existing component, designing a new machine or upgrading an automation system, Bearing King can help you find the right linear motion solution for your application.
With over 35 years of engineering experience, competitive prices and fast UK and worldwide shipping, we supply linear motion products to customers throughout the UK and across the globe.
Shop Linear Motion by Type
Our linear motion range covers components designed to provide accurate, low-friction movement and dependable positioning across a wide variety of machinery and equipment.
Linear Ball Bearing Units
Linear Ball Bearing Units provide smooth linear movement along a shaft while offering a convenient housed or mounted solution. They are widely used in automation, manufacturing equipment, positioning systems and general machinery.
Linear Ball Bushings
Linear Ball Bushings use recirculating balls to provide smooth, low-friction movement along a compatible round shaft. Their compact and versatile design makes them suitable for everything from general engineering equipment to precision automated machinery.
Linear Rails & Guide Rails
Linear Rails provide an accurate guiding surface for linear carriages and blocks, allowing machinery to move smoothly and precisely along a defined path.
Linear rail systems are widely used in CNC equipment, automation, robotics, production machinery and other applications requiring accurate positioning and controlled movement.
Linear Carriages
Linear Carriages run along compatible guide rails to provide controlled linear movement while supporting loads.
Different carriage designs are available to accommodate varying load capacities, accuracy requirements, mounting arrangements and operating conditions.
Linear Roller Slides
Linear Roller Slides are designed to provide accurate linear movement with high rigidity and load-carrying capability.
They are particularly suited to applications where precision, stability and repeatable movement are important.
THK FBW Slide Packs
THK FBW Slide Packs provide a compact linear guidance solution suitable for applications where space is limited but smooth and reliable movement is required.
Their straightforward design makes them suitable for automation equipment, instrumentation, manufacturing machinery and other precision applications.
Linear Motion Systems & Technologies
Linear motion covers far more than one type of bearing or guide. Depending on the application, a complete system may incorporate rails, carriages, shafts, bushings, screws, guides and other motion-control components.
As our range develops, Bearing King will continue to expand the linear motion products available online.
Linear Guides
Linear guide systems use rolling elements to provide accurate movement along a rail while reducing friction.
Their combination of precision, rigidity, speed and load capacity makes linear guides an important component in modern automated and precision machinery.
Typical applications include CNC machinery, robotics, machine tools, packaging equipment, measuring systems and automated production machinery.
Ball Screws
Ball screws convert rotary movement into precise linear movement using recirculating balls between the screw and nut.
Compared with conventional sliding screw systems, ball screws can provide low friction, high efficiency and accurate positioning.
They are commonly used in CNC machinery, automated equipment, positioning systems, robotics and precision engineering.
Linear Shafts
Linear shafts provide the running surface for compatible linear bearings and ball bushings.
Correct shaft diameter, surface finish, hardness and alignment are important considerations when designing a reliable linear motion system.
Ball Splines
Ball spline systems can provide linear movement while also transmitting torque.
This combination makes them particularly useful in applications requiring controlled linear movement together with rotational force.
Choosing the Right Linear Motion Components
Selecting the correct linear motion system depends on much more than simply matching dimensions.
Important considerations can include:
- Load capacity
- Direction of load
- Required accuracy
- Shaft or rail dimensions
- Travel length
- Operating speed
- Rigidity
- Mounting arrangement
- Environmental conditions
- Lubrication requirements
- Sealing and contamination
- Required service life
If you're replacing an existing component, the manufacturer and part number are often the quickest way to identify the correct replacement.
If the original part number isn't available, our experienced team can help identify suitable options from dimensions and application information.
Linear Motion Applications
Linear motion components are used anywhere machinery requires accurate, controlled movement.
Typical applications include:
- CNC machinery
- Machine tools
- Industrial automation
- Robotics
- Packaging machinery
- Production and assembly equipment
- Printing machinery
- Material handling equipment
- Measuring and inspection equipment
- Medical and laboratory equipment
- Food processing machinery
- Automotive manufacturing
- Aerospace equipment
- Electronics manufacturing
- General engineering machinery
From simple sliding mechanisms to sophisticated automated production equipment, choosing the correct linear motion components can improve accuracy, reliability and machine performance.
Linear Motion for Automation & Robotics
Automation is one of the most important applications for modern linear motion technology.
Linear rails, carriages, bearings, ball screws and associated components allow automated machinery to move loads accurately and repeatedly between defined positions.
These components can be found in robotic systems, pick-and-place equipment, CNC machinery, automated assembly lines, packaging machinery and manufacturing cells.
As automation technology continues to develop, Bearing King will continue expanding our linear motion range to support both replacement and new-build applications.
Why Buy Linear Motion Products from Bearing King?
- Over 35 years of engineering experience
- Extensive and continually expanding product range
- Products from trusted manufacturers
- Competitive prices
- Expert technical support
- Fast UK delivery
- Worldwide shipping
- Support identifying replacement components
- Worldwide sourcing for specialist and difficult-to-find products
If the linear motion component you require isn't currently displayed online, contact us with the manufacturer, product code, dimensions or application details. We may still be able to source it through our extensive supplier network.
Frequently Asked Questions
What is a linear bearing?
A linear bearing is designed to allow controlled movement along a straight path. Depending on the design, rolling elements such as balls or rollers reduce friction between the moving components and provide smooth, accurate travel.
What is the difference between a linear bearing and a linear guide?
A linear bearing commonly runs along a round shaft, whereas a linear guide normally consists of a profiled rail and compatible carriage or block. The best option depends on factors including load, accuracy, rigidity, speed and the application's design.
How do I identify a replacement linear bearing?
Start by checking the existing component for a manufacturer's name and part number. If these aren't available, measurements such as shaft diameter, overall dimensions and mounting details can help identify a suitable replacement.
Do you supply complete linear motion systems?
Our linear motion range includes a growing selection of bearings, bushings, rails, carriages, slides and associated components. As we continue expanding the range, additional linear motion technologies and products will be added.
If you can't find the component you need online, contact our team as we may be able to source it for you.
Do you supply linear motion components worldwide?
Yes. Bearing King supplies engineering products throughout the UK and ships to customers across Europe and worldwide.
Need Help Finding a Linear Motion Component?
With the enormous number of linear bearing, rail, carriage and guidance configurations available, identifying the correct component isn't always straightforward.
If you have a manufacturer's part number, dimensions, drawing or details of the application, contact the Bearing King team and we'll help identify the product you require.
Whether you need a single replacement component or products for an ongoing engineering requirement, Bearing King provides expert support, competitive pricing and fast UK and worldwide delivery.
