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MISUMI Linear Guides

MISUMI offers Linear Guides products in the Automation Components category such as, Standard Linear Guides, Linear Guide Accessories and many more products that are related to Linear Guides. Search and select detailed specifications of parts for your machine with free CAD downloads. MISUMI products are available to order through MISUMI online 24 hours a day. Free shipping, no minimum order.

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MISUMI Linear Guides

FAQ Linear guides

Question: What is allowable load?

Answer: Allowable load consists of Basic dynamic load rating, Basic static load rating, and Static moment rating.

Question: What is Basic dynamic load rating?

Answer: Basic dynamic load rating is defined as: a load applied in a constant direction and ran under equal condition on a group of linear guide specimen where 90% of specimen will reach 50×10³m
This parameter also used for calculating the life span of Linear Guides in case of receiving load while moving.

Question: What is Basic static load rating?

Answer: Basic static load rating is defined as: a load applied on non-moving linear guides where a sum of rolling element plastic deformation amount and rolling surface plastic deformation amount becomes equal to 0.0001 times that of the diameter of the rolling element.
This parameter also used for calculating the Static Safety Factor for load receiving.

Question: What is Static moment rating?

Answer: Allowable static moment is a critical static moment load defined by permanent deformation value where a sum of rolling element plastic deformation amount and rolling surface plastic deformation amount becomes equal to 0.0001 times that of the diameter of the rolling element.
For Linear Guides, moment can be separated in 3 directions: MA MB and MC

For Linear Guides, moment can be separated in 3 directions: MA MB and MC

Question: What is Static Safety Factor?

Answer: Static safety factors are given in Table-1. When a linear system is still or moving at low speed, basic static load rating Co must be divided by fs in accordance with the conditions of use.
Safety factors should be considered and provided for safety design. Please see the table below for reference:
Static Safety Factor(Lower Limit of fs)

Condition of Use	Lower Limit of fs
Under Normal Operating Conditions	1∼2
When Smooth Travel is Required	2∼4
When Subjected to Vibrations, Impacts	3∼5

Question: Does the accuracy of MISUMI Linear Guides similar to Linear Guides of other manufacturers.

Answer: If they are classified in the same Precision Class, accuracy will be equally or higher. However, MISUMI does not offer product in Super Precision class.

Question: How can I calculate the friction force (required thrust force) of Linear Guides?

Answer: Friction force is obtained by the following formula.
Ｆ=μ・W+ｆ

F : Friction (N)
µ : Dynamic Friction Coefficient　Miniature Linear guides　0.004∼0.006
　Linear Guides for Medium and Heavy load　0.002∼0.003
W : Applied Load
f : Seal Resistance (2N ∼ 5N)

Question: Do you have recommended specification of screw for rail mounting?: Answer: Please use common hexagonal socket head cap screw.
CB Series (Socket Head Cap Screws)
SCB Series (Socket Head Cap Screws/Stainless Steel)
Question: What is your standard seal?: Answer: There are various seal depending on product as following:
• Miniature Linear guides：Side seal (block side)
• Linear Guides for medium load and heavy load：Side seal (block side) under seal (under block)
• Dust-proof：Side seal x 2 and under seal.
Miniature Linear Guides - Dust Resistant - Standard Blocks, Light Preload
Linear Guides for Medium Load - Dust Resistant - With Double Seals / Metal Scrapers, Normal Clearance
Question: Where is datum of rail and block?: Answer: Datum is on the side that has marking line for datum of rail and block (with straight groove)
Please see more details about marking line for datum and position in
General information for design and selection of Linear Guides
Usage/ Datum of rail and block for mounting
Question: What is the hardness of rail?: Answer: Hardness of rail is various depending on production, however, all of them are HRC56 or higher.
Please see more details in each product page.
Question: What is range of operating temperature?: Answer: Range of operating temperature is between -20∼80°C, however, range of operating temperature for Miniature Linear Guides - Heat Resistant - Short / Standard / Long Blocks, Light Preload is between -20∼150°C, and range of operating temperature for product with plastic retainer is between 0∼50°C (Please search with keyword “Plastic retainer” for more details)
Question: Were MISUMI Linear Guides finished with hardening treatment?: Answer: Blocks, rail, and balls of Linear Guides were hardening.

Question: Is it possible to use your Linear Guides on the wall, ceiling, or lift up?: Answer: Yes,
MISUMI Linear Guide have the same load rating at all 4-mounting direction (radial, reverse radial, horizontal) Therefore, mounting direction has no effect to load rating.
Question: I found oil leak out from blocks when using in vertical direction. Does it effect to performance?: Answer: No effect to performance.
MISUMI Linear Guides were not closed system, so oil can be leaked out. Anyway, it is recommended to shorten the interval of re-lubrication when using in vertical direction.
Question: I want to reduce the friction as much as possible, should I remove the side seal?: Answer: Removing the side seal may lead to bad movement, so we do not recommend removing side seal.
Please check on other product that has lower friction than Linear Guides (Ball slide guide, Cross roller table type)
Question: Can I use Linear Guides by connecting of 2 rails?: Answer: It is not recommended to connect 2 rails.
Because the end face of them may not fit enough, it may result in bad movement at connecting area.
Question: Can blocks be added or changed?: Answer: Blocks can be added or replaced with only linear guides for medium load and light preload types. Other types cannot be added or replaced. (All Miniature Linear guides cannot be added or replaced with blocks.)
＜Linear Guides with light preload＞
• Linear Guides for Medium Load - Stainless Steel - With Plastic Retainers, Interchangeable, Light Preload
• Linear Guides for Heavy Load - Stainless Steel - With Plastic Retainers, Interchangeable, Light Preload
• Linear Guides for Super Heavy Load - Stainless Steel - With Plastic Retainers, Interchangeable, Light Preload
Question: Do balls fall out of MISUMI linear guides when removed from blocks?: Answer: Balls do not fall out of MISUMI linear guides when removed from rails as the blocks are equipped with ball-retainers. However, the balls may fall out by rapidly removing blocks from the rail or inserting the rail into the block at an angle. Remove and install the blocks with caution.
Question: Please explain about how to maintain the Linear Guides.: Answer: Please re-lubricate Linear Guides periodically for smooth operation and longevity.
Recommended Lubrication Intervals: Every 6 months or every 3 months when travel distance is extensive, or every 1000km. If the grease degrades or gets contaminated faster depending on the operating environment, please shorten the lubrication interval as needed.
Question: Please explain how to re-lubricate.: Answer: Please re-fill grease via grease nipple.
For Miniature Linear guides that do not have grease nipples, please apply grease directly to the rail groove and slide the block to blend it in.
Question: Can the fall-prevented clips attached to the rail when shipped, be used as a stopper?: Answer: No, clips are used for shipping, not be used as stoppers.
Question: I have purchased Linear Guides with 2 parallel axes (WC) totally 4 pieces (2 set) There are number 1 and 2 written with blue and black ink on product. How should I assembly them?: Answer: Please assembly 1 to 1, and 2 to 2.
Numbers were written at 2 positions: inner box and wrapping vinyl of Linear Guides.
Question: How should I re-lubricate Miniature Linear guides that do not have grease nipples?: Answer: Please apply grease directly to the rail groove and slide the block to blend it in.
Question: Which position do grease nipples mounted on Linear Guides for Medium load and heavy load that contain 2 blocks. And can I change the mounting position later?: Answer: Grease nipples were mounting at the position that do not contact either block and placed in direction that point to the end of rail before shipping. For Linear Guides with 3 or 4 blocks, please see more details in product drawing in each product page.
In addition, grease nipples were mounting with screw, so it is easy to change position by removing the screw.

Question: I want to know about increment range of rail.: Answer: Length is dependent on type. Length increment is 1mm between 40mm∼1960mm.
Question: How can I calculate the length from end face of rail to the center of first hole (G-dimension) when specify L-dimension: Answer: Please calculate by the following table.
G-dimension = (L-dimension - ( (Numbers of hole -1) ) × F-dimension) ) / 2
Number of mounting holes is shown below:
Question: Can I order rail with some length not listed in catalog?: Answer: Please send us a request for quotation via Quotation request for item not listed in MISUMI FA Catalog service. We will check and advise if it is available.
Question: Do you offer product for fixing (maintain) block in specified position?: Answer: Yes, please check on Clamp Lever for Linear Guides:
• Linear Guide Clamps - For Miniature Linear Guides(SECK SECWK)
• Linear Guide Clamps - For Medium/Heavy Load Linear Guides(SVCN SVCK)
※Clamp lever for Linear Guides C-Value is not available.
Question: Can I purchase the side seal of return cap of block separately?: Answer: No.
Question: Is there any product used for height adjusting of Linear Guides?: Answer: Yes, please check on Height Adjusting Blocks for Linear Guides. There are available for each size of Linear Guides except Linear Guides for heavy load and Linear Guides for extremely heavy load.
• Height Adjusting Blocks for Linear Guides - Economy Type
• Height Adjusting Blocks for Linear Guides - High Precision Type
• Height Adjusting Blocks for Miniature Linear Guides - Standard Rail Type
Question: Do you offer the non-magnetic Linear Guides?: Answer: No.
You can create the non-magnetic Linear Guides for light load by using the combination of the Aluminum extrusion and rail for Aluminum extrusions.
Question: Do you offer special type greases?: Answer: Yes.
Special type of greases listed below:
• L-Type (ET-100K (Kyodo Yushi) )
• G-Type (LG2 (Nihon Seiko) )
In comparison with standard grease, L-Type is excellent in adhesion and adhesive power. G-Type is low particle generation grease, used for cleanroom.
Question: Can I order product with no grease filled?: Answer: Yes.
Please send us a request for quotation via Quotation request for item not listed in MISUMI FA Catalog service.
(Not available for C-Value)
Question: Do you offer rail and block separately?: Answer: Rail and blocks cannot be order separately.
This is because blocks and rails guarantee their accuracies as sets of blocks and rails.
Only plastic retainer available for separately order.
Question: Do you provide mounting bolts as attachment?: Answer: No, please request them upon your purchasing.
Bolts only provided as attachment for Miniature Linear guides (H6 H8 etc.)
Question: Do you offer cap for rail mounting hole?: Answer: Yes, please check on Slide Guide - Rail Mounting Hole Caps【100 Pieces Per Package】【100 Pieces Per Package】(PACK-SGLC)
However, available for product with M3 M5 M6 hole only.
Question: Do you offer bellow type Linear Guides?: Answer: No.
Question: Can I order the standard grease filled with product on shipping in separately?: Answer: Yes, below is standard grease for Miniature Linear guides and Linear Guides for Medium load and Heavy load. Each product has 2 types of greases.
• Standard grease filled in Miniature Linear guides：Multemp SRL from Kyodo Yushi
• GRSPS2 (80g)
• MPS2-25 (2.5kg)
※Above product is not listed in FA Catalog, but available for order or request quotation via <WOS> by input model code.
• Standard grease filled in Linear Guides for Medium load and Heavy load：
Shell Alvania Grease S
• ALVANIA-S-2-400G
• ALVANIA-S-2-16KG
※ Please see more details about quantity and volume in each product page.
Question: Do you offer product with plastic retainer?: Answer: There are no Miniature Linear guides with plastic retainer.
It is available in some type of Linear Guides for medium load and heavy load.

Question: Please explain how to input the model code for product with 2 or more blocks.: Answer: Please see the below example:
※Example of model code for Miniature Linear guides SSEB
• 1 block：SSEB10-155
• 2 blocks：SSE2B10-155
• 3 blocks：SSEB10-155-B3
• 4 blocks：SSEB10-155-B4
• 5 blocks or above：Please send us a request for quotation via Quotation request for item not listed in MISUMI FA Catalog service (May not available for some block or length configs)
Question: I have selected the length of rail within the range, but it displayed as model code error.: Answer: It is possible that model code of selected product is not matched between model code in system (select product from length shown in Specification table) and specified code (Specify product length that does not exist in specification), so system displayed as model code error.
Example of product model code) SSEB10-55
Example of specified code) SSEBL10-59
Please verify both selection step if you input correctly or not.

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