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Square Flanged Linear Bushings, Single / Double / Opposite Counterbored Hole (E-LBK25UU)
- Volume Discount
Square Flanged Linear Bushings, Single / Double / Opposite Counterbored Hole
These Linear Bushings are an economy item, The price is cheaper than the MISUMI standard product.They offer a wide variety of sizes to choose from.
[Features]
● Support Shaft Diameter Minimum/Maximum (mm.): 6 and 50
● Overall Length Minimum/Maximum (mm.): 19 and 192
● Shape : Square Flanged
● Ball Recirculating Type : Single or Double
● Material:
- Housing - SUJ2 Equivalent
- Ball - SUJ2 Equivalent
[Application]
It is used in industrial machinery such as conveyor systems, packaging machines, and robotic equipment.
Part Number
Configured Part Number is shown.
E-LBK25UU
Economy Square Flanged Linear Bushing
- Reliable square flanged bushing for robust support.
- Single and double ball recirculating types for various uses.
- High-quality SUJ2 equivalent material for long-lasting use.
- Supports a range of shaft diameters with precise tolerances
- Suitable for packaging machines and conveyor systems.
MISUMI Standard
Cheaper Price
Product Variety
3D CAD Support
Product Overview of Linear Bushings
Product Feature of Linear Bushings
Through the rolling of steel ball, high-efficiency movement with low friction resistance can be realized.
Dimensional Drawing of Linear Bushings
This product of Linear Bushings is delivered at the initial stage, the color of the packing may be inconsistent with the photo, which shall be subject to the actual product.The flange part of this product is not heat-treated, and there may be bumps and bruises.Specifications Overview of Linear Bushings
| Counterbored | Linear Bushings Type | Housing | Ball | Retainer | Operating environment temperature | Accessories | ||
 Material |  Hardness |  Surface Treatment | Material | Material | Material | |||
| Opposite Counterbored | E-LBKZ | Equivalent to SUJ2 | 58HRC～ | － | Equivalent to SUJ2 | Resin | －20～80℃ | Nitrile Rubber |
| Standard | C-LMK | |||||||
| E-LBK | ||||||||
| E-LBKM | Electroless Nickel Plating |
If there are requirements for rust prevention, give priority to products with surface treatment of electroless nickel plating or those with low temperature hard chromium plating.Specification Table of Linear Bushings
 | Part Number( Type・Inner Diameter・Length | |||
| C-LMK8UU E-LBK8UU | ||||
■ Dimension Specification Table of Linear Bushings
| Part No. | Outer Diameter. D | Overall Length L | H | T | d | d1 | |||||||||
 Type |  dr | Tolerance |  Length(Ball Retainer) | Single No Surface treatment | Double No Surface treatment | Single With Surface treatment | Double With Surface treatment | Single UU | Double Luu | Torerance | |||||
| E－LBKZ E－LBK E－LBKM | 6 | ＋0.003 －0.012 | UU (Single) LUU (Double) | 12 | 0 －0.015 | 0 －0.016 | 0 －0.015 | 0 －0.015 | 19 | 35 | ±0.3 | 28 | 3.5 | 2.5 | 4.5 |
| 8 | 15 | 24 | 45 | 32 | |||||||||||
| 10 | 19 | 0 －0.018 | 0 －0.018 | 0 －0.018 | 29 | 55 | ±0.6 | 40 | 6 | 4.5 | 7.5 | ||||
| 12 | 21 | 0 －0.018 | 30 | 57 | 42 | ||||||||||
| 13 | 23 | 32 | 61 | 43 | |||||||||||
| 16 | 28 | 37 | 70 | 48 | |||||||||||
| 20 | ＋0.003 －0.013 | 32 | 0 －0.021 | 0 －0.021 | 0 －0.021 | 0 －0.021 | 42 | 80 | 54 | 8 | 5.5 | 9 | |||
| 25 | 40 | 59 | 112 | 62 | |||||||||||
| 30 | 45 | 64 | 123 | 74 | 10 | 6.6 | 11 | ||||||||
| 35 | ＋0.003 －0.016 | 52 | 0 －0.028 | 0 －0.03 | 0 －0.025 | 0 －0.028 | 70 | 135 | 82 | ||||||
| E－LBK E－LBKM | 40 | 60 | 80 | 151 | 96 | 13 | 9 | 14 | |||||||
| 50 | 80 | 0 －0.03 | 0 －0.032 | 0 －0.028 | 0 －0.03 | 100 | 192 | 116 | |||||||
Specification of "E-LBK" corresponds to the spec of "C-LMK". Difference between these 2 type is only Part No.| Part Number | Outer Diameter: D | Total Length: L | H | T | d | d1 | t | P.C.D. | W | Lateral misalignment | Number of ball rows | Verticality | Weight (g) | Basic Rated Load | |||||
| Type | dr | Tolerance | Tolerance | Tolerance | C (Dynamic) N | Co (Static) N | |||||||||||||
| C-LMK_UU | 6 | +0.003 -0.012 | 12 | 0 -0.015 | 19 | ±0.6 | 28 | 5 | 3.5 | 6 | 3.1 | 20 | 22 | 0.024 | 4 | 0.024 | 18 | 206 | 265 |
| 8 | 15 | 24 | 32 | 24 | 25 | 29 | 265 | 380 | |||||||||||
| 10 | 19 | 29 | 40 | 6 | 4.5 | 7.5 | 4.1 | 29 | 30 | 52 | 372 | 549 | |||||||
| 12 | 21 | 0 -0.018 | 30 | 42 | 32 | 32 | 57 | 412 | 598 | ||||||||||
| 16 | 28 | 37 | 48 | 38 | 37 | 5 | 104 | 775 | 1180 | ||||||||||
| 20 | +0.003 -0.013 | 32 | 0 -0.021 | 42 | 54 | 8 | 5.5 | 9 | 5.1 | 43 | 42 | 0.03 | 0.03 | 145 | 882 | 1370 | |||
| 25 | 40 | 59 | 62 | 51 | 50 | 6 | 300 | 980 | 1570 | ||||||||||
| 30 | 45 | 64 | 74 | 10 | 6.6 | 11 | 6.1 | 60 | 58 | 375 | 1570 | 2740 | |||||||
Usage Method of Linear Bushings
| Product Drawings of Linear Bushings | Instructions for use of Linear Bushings |
 | When the Linear Bushings is under heavy load (unbalanced load), one piece of single liner type is not applicable. It is recommended to use one piece of double liner type or multiple pieces of single liner type. |
 | Linear Bushings is not suitable for rotating motion in structure. If you rotate forcibly, it may cause damage to the product. Please pay attention during use. |
 | Linear Bushings, Linear bearing is not suitable for repeated plugging and unplugging. |
 | When inserting the guide shaft into the linear bearing, please align the center and insert it slowly, otherwise the steel ball will fall off or the retainer will be deformed. |
Precautions of Linear Bushings
① Before use, please apply grease to the ball row inside the Linear Bushings, linear bearing, and then replenish it in due course. Grease forms an oil film on the surfaces of steel ball and rolling surface (guide shaft·bushing) of linear bearing, which effectively reduces friction and prevents sintering. Grease reduction and aging will greatly affect the life of linear bearing.
② Recommended grease: lithium soap grease.
③ Recommended grease filling interval: Usually every 6 months.
④When the moving distance is long, it is recommended to move once every three months or when the moving distance exceeds 1000km within the time limit, the 1000km shall prevail.
⑤ When the linear bearing is subjected to large moment load (eccentric load), one piece of single liner type is not applicable, so it is recommended to use one piece of double liner type or multiple pieces of single liner type.
■ Dust prevention measures:
If dust or foreign matter enters the inside of the Linear Bushings, linear bearing, it may damage the circulation of steel balls, resulting in unexpected failures. When used in harsh environment, please install dust cover and protection cover, etc.
■ MISUMI linear bearing is recommended to be combined with guide shaft with quenching g6 tolerance.
■ MISUMI linear bearing is recommended to be installed on the holder with H7 tolerance. The linear bearing is in clearance fit with the holder.
Related Products of Linear Bushings
| Guide shaft Straight bar type | (Economy series) Linear Bushings Standard type Single liner type | Shaft Collar Slit | ||
 |  |  | ||
| Typical Linear Bushings model: SFJ20-75 | Typical Linear Bushings model: C-LM8UU | Typical Linear Bushings model: SCS8-10 |
Part Number
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| Part Number |
|---|
| E-LBK25UU |
| Part Number | Standard Unit Price | Minimum order quantity | Volume Discount | Days to Ship | RoHS | Inscribed Circle Dia. dr (Ø) | Overall Length L (mm) | Outer Cylinder Surface Treatment | Outer Dia. D (Ø) | Ball Recirculating Type | Length | Eccentricity (µm) | Basic Load Rating: Dynamic Load (Details) (N) | Basic Load Rating: Static Load (N) | Inscribed Circle Dia. Tolerance (Negative Side) (mm) | No. | Holder Material | Style of Mounting Hole |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SGD 7.70 | 1 Piece(s) | Available | Same day | 10 | 25 | 59 | No Surface Treatment | 40 | Single | Single | 30 | 980 | 1570 | -0.021 | - | - | Standard Counterbored Hole |
Loading...
Basic Information
| Type | Flange | Flange Type | Standard Flange | Style | Standard |
|---|---|---|---|---|---|
| Outer Cylinder Material | SUJ2 Equivalent | Lubrication Type | Not Provided | Accuracy | Standard Grade |
| Motion | Linear | Types | Standard Flange | Flange Shape | Square Flange |
| Ball Material | SUJ2 Equivalent | Retainer Material | Plastic | Seal | Provided |
| Greased Filled | Not Provided |
Please check the type/dimensions/specifications of the part E-LBK25UU in the Square Flanged Linear Bushings, Single / Double / Opposite Counterbored Hole series.
Specification/Dimensions
-
No.
-
Holder Material
- Opposite couterbored
- Standard
-
type
- C-LMK
- E-LBK
- E-LBKL
- E-LBKM
- E-LBKZ
-
Inscribed Circle Dia. dr(Ø)
-
Overall Length L(mm)
-
Outer Cylinder Surface Treatment
- No Surface Treatment
- Surface Treatment
-
Outer Dia. D(Ø)
-
Ball Recirculating Type
- Single
- Double
-
Length
- Single
- Double
-
Eccentricity(µm)
-
Style of Mounting Hole
- Opposite Couterbored Hole
- Standard Counterbored Hole
-
CAD
- 2D
- 3D
Days to Ship
-
- All
- Same day
- 5 Day(s) or Less
Specify Alterations
- The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .
Frequently asked question (FAQ)
- Question: What brand is the linear bearing of FA?
- Answer: The linear bearing of FA is MISUMI brand.
- Question: Is there a product stamp on the linear bearing?
- Answer: There is no stamp on the product body, and the product model is on the packaging box.
- Question: How is linear bearing maintained regularly?
- Answer: MISUMI recommends that linear bearing is regularly replenished with grease, and it is recommended to do so once every six months. When the moving distance is long, it is recommended to move once every three months or when the moving distance exceeds 1000km within the time limit, the 1000km shall prevail.
- Question: Comparison of antirust ability of linear bearings?
-
Answer:
Antirust ability from strong to weak: No-Electro Nickel Plated → No Surface Treatment.
Standard grade bearing steel is easy to rust, so it is necessary to apply anti-rust oil regularly. - Question: What is the difference between the single liner type and the double liner type of linear bearing of FA?
- Answer: Single liner type is one row of steel balls, and double liner type is two rows of steel balls. Generally, the length of the double liner type is more than twice that of the single liner type, and the contact area of steel balls is longer, the radial sway is smaller, and the rated load is larger.
- Question: When the linear bearing and the guide shaft are used together, some are closely matched, but some have relatively large clearance. Does it affect the use?
- Answer: The linear bearing and the guide shaft are in point contact and rolling fit through the circulating steel ball structure. Because of point contact and non-interference fit, it is normal to have clearance between the shaft and the bearing, which will not affect the use. The use of this structure greatly reduces the friction resistance and prolongs the service life of the workpiece.
- Question: How to deal with oil leakage in the received linear bearing?
- Answer: Linear bearing is coated with anti-rust oil (except for MX grease device) when leaving the factory, which has little influence on grease. It is recommended to clean it before use and apply grease after drying.
- Question: Can the linear bearing rotate?
- Answer: The linear bearing is not suitable for rotating motion in structure. If it is forcibly rotated, it may cause damage to the product. If rotating motion is required, please give priority to linear type rotating bushings.
Similar Part Numbers
| Part Number |
|---|
| C-LMK25UU |
| C-LMK6UU |
| C-LMK8UU |
| E-LBK30LUU |
| E-LBK30UU |
| E-LBK35LUU |
| Part Number | Standard Unit Price | Minimum order quantity | Volume Discount | Days to Ship | RoHS | Inscribed Circle Dia. dr (Ø) | Overall Length L (mm) | Outer Cylinder Surface Treatment | Outer Dia. D (Ø) | Ball Recirculating Type | Length | Eccentricity (µm) | Basic Load Rating: Dynamic Load (Details) (N) | Basic Load Rating: Static Load (N) | Inscribed Circle Dia. Tolerance (Negative Side) (mm) | No. | Holder Material | Style of Mounting Hole |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SGD 6.72 | 1 Piece(s) | Available | Same day | 10 | 25 | 59 | No Surface Treatment | 40 | Single | Single | 30 | 980 | 1570 | -0.013 | None | - | - | |
SGD 4.04 | 1 Piece(s) | Available | Same day | 10 | 6 | 19 | No Surface Treatment | 12 | Single | Single | 24 | 206 | 265 | -0.012 | None | - | - | |
SGD 4.10 | 1 Piece(s) | Available | Same day | 10 | 8 | 24 | No Surface Treatment | 15 | Single | Single | 24 | 265 | 380 | -0.012 | None | - | - | |
SGD 17.60 | 1 Piece(s) | Available | Same day | 10 | 30 | 123 | No Surface Treatment | 45 | Double | Double | 40 | 2490 | 5490 | -0.021 | - | - | Standard Counterbored Hole | |
SGD 10.60 | 1 Piece(s) | Available | Same day | 10 | 30 | 64 | No Surface Treatment | 45 | Single | Single | 30 | 1570 | 2740 | -0.021 | - | - | Standard Counterbored Hole | |
SGD 22.63 | 4 Piece(s) | Available | 5 Day(s) | 10 | 35 | 135 | No Surface Treatment | 52 | Double | Double | 0.045 | 2650 | 6270 | -0.03 | - | - | Standard Counterbored Hole |
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