Linear Guides

Why Choose Linear Guides?

Does your linear motion application have high speeds, high loads, and need a high degree of accuracy? If yes, you should consider installing a linear guide. They have all of the benefits of linear bushings, but are different in a couple ways:

  • Since the guides are supported directly on a base, they do not have the same load restrictions as linear bushings
  • Linear guides have a “V” groove, which provides a surface contact for the rolling balls to help with load distribution and lowers friction coefficients

In combination with using precision bearings, these factors add up to an extremely accurate positioning and repeatability potential. Driving linear guides is similar to linear bearings, and both have the same environmental concerns: in order to maintain the low friction and life span of the guide, you will need to pay attention to your lubrication schedules.

So, how do you know if you really need to use a linear guide? First and foremost, make sure you understand and know your application, taking into consideration the load, frequency, and accuracy of your motion. The FAQ section below can answer a lot of questions, or visit our Linear Guides Product Page to view our Product Lineup.

Linear Guides FAQ: 

Who produces MISUMI Miniature Linear Guides?
Suruga Seiki Co. Ltd., well known for its XY stage product line, manufactures MISUMI linear guides.

Can blocks be added or changed?
Blocks can be added or replaced only with Interchangeable Linear Guides. By doing this, precision standard of Interchangeable linear guide remains the same. This is why Interchangeable guides are sold as a set with option to purchase rails and blocks separately. All other types of linear guides are sold as a set only, and precision standard is only guaranteed for original/purchased set.

What is the width dimension tolerance of blocks and rails?
Dimension tolerance of block width (W) is ±0.05mm, and that of rail width is ±0.005mm.

Can we order rails that are longer than those specified in the catalog? Can we mount shorter rails back-to-back?
MISUMI does not offer rails that are longer than those specified in the catalog. The customer can not mount the rails back to back since the rail ends are not machined with high accuracy.

What grease do you use as a standard?For miniature type, we use Multemp Grease PS2 from KYODO YUSHI CO., LTD.
For medium and heavy load type, we use Shell Alvania Grease No.2 from Showa Shell Sekiyu K.K.

Is it possible to use your linear guides on the wall or ceiling?
Yes, MISUMI linear guides have the same load rating at any mounting position because they have the ball line structure which can support the same load in any orientation.

Are dimensions the same as other manufacturers, like THK, NSK or Thomson?
Rail mounting pitch and block mounting pitch are usually the same. Block size might have slight dimensional differences. Please verify both MISUMI and other manufacturer’s catalog for more detail information.

Which linear guides are designed and made by MISUMI?
All linear guide groups that are offered with options like: Blocks with Dowel Holes, Rails with Dowel Holes, One Size Larger Mounting Holes, Extra Long Block Type etc. are MISUMI original design.

Can the clips attached to the rail when shipped, be used as a stopper for a block?
No, clips are used to prevent blocks from falling off during shipping and storage and are not be used as stoppers.

Is calculation of life span difficult?
No, it’s easy. By using operating conditions such as load or speed you can calculate life span of the product. For more details see “Calculation of Life Span of Linear Systems” in Technical Data catalog section.

If you need help finding the right solution, call us at 800-68107475 or check out our Linear Guides Product Page.

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