Linear guides
Linear guides consist of a track rail and slide units (blocks) that travel along it, guiding the moving parts of machines in a straight line with high precision. Steel balls or rollers recirculate inside the block and roll, achieving smooth, endless linear motion with low friction. They are classified by rolling element into ball type and roller type, with roller type offering superior rigidity and load capacity. Blocks are available in flange and block configurations, and miniature types are also offered. Besides machine tools and industrial machinery, specifications using stainless steel or ceramics are used in cleanroom and vacuum environments such as semiconductor and liquid crystal manufacturing equipment.
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Linear guides
LINEARWAY
A linear guide that provides high-precision linear motion with slide units moving endlessly along a track rail, designed for special environments.
JTEKT Corporation
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Linear guides
LWL, LWES, LWHS Series Linear Way for Special Environments
A linear motion bearing unit for clean and vacuum environments, in which the slide unit moves endlessly in a straight line along the track rail.
JTEKT Corporation
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Linear guides
LWL Series Linear Bearing (Roller Type EXSEV Linear Bearing)
EXSEV linear bearing series with rail widths from 5 mm to 42 mm. Basic load ratings and moment values are listed by model number.
JTEKT Corporation
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Linear guides
TSUBAKI NAKASHIMA Linear Guide (Ball Way)
Linear guides including precision ball ways, miniature ball ways, slide ways, and more.
Tsubaki Nakashima Co., Ltd.
How to choose Linear guides
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1. Select rated load from load and life
The basic dynamic load rating C is the basis for rolling life calculation. Estimate the load on each block, inertial force during acceleration and deceleration, and moment loads, then select a model number with a C that meets the required travel life. When using multiple blocks, also consider load distribution.
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2. Allow margin for static load and shock
The basic static load rating C0 is a guideline for the limit beyond which permanent deformation of the rolling surfaces occurs during stopping or under shock loads. Secure a safety factor against the maximum load, and when moment loads are applied, also check the static moment rating.
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3. Determine size series by rail width
Rail width W1 is the reference for the size series, and listed products range from 5 to 42 mm. Greater width increases load capacity and rigidity, but also increases mounting space and mass. Select an appropriate width based on both load conditions and the dimensional constraints of the equipment.
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4. Verify assembly height and block width against drawings
Assembly height H is the height from the mounting surface to the top of the block and directly affects table height and interference with other components. Block width W also affects the mounting space on the table side, so verify dimensions together with the block type (flange or block type).
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5. Check rail length against required stroke
Confirm that the required stroke plus block length and allowances such as stoppers fits within the maximum rail length that can be manufactured. If it does not fit, also consider whether spliced rails are possible. Mounting hole pitch F is needed for hole machining design on the mounting surface.
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6. Select material suited to the environment
For cleanroom, vacuum, or corrosive environments, or equipment that must avoid magnetism, specifications using stainless steel or ceramics are options. Organize requirements for particle generation, lubricant evaporation, corrosion resistance, and non-magnetic properties, and confirm material and lubrication specifications.
This guide was written by AI based on the listed products' documents and specification items. Check each manufacturer's documents before adopting.