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Round, Center Flanged Linear Bushings, Double (Part Numbers)
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- Volume Discount
Round, Center Flanged Linear Bushings, Double
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.
[Feature]
● Support Shaft Diameter Minimum/Maximum (mm.): 6 and 40
● Overall Length Minimum/Maximum (mm.): 35 and 151
● Shape : Round, Center Flanged
● Ball Recirculating Type : 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.
Economy Round Center Flanged Double Linear Bushing
- Optimal balance with center flange design.
- Supports various shaft diameters
- High durability with low noise operation.
- Effective utilization of space for compact designs.
- Reliable and cost-effective for industrial machinery.
MISUMI Standard
Cheaper Price
Product Variety
3D CAD Support
Product Overview of Linear Bushings
The middle flanged linear bearing allows workpieces to be installed near the center of the linear bearing body, ensuring good balance on two sides of the flange, as well as decentralized load space.
Product Features of Linear Bushings
Through the rolling of steel ball, high-efficiency movement with low friction resistance can be realized.
Linear Bushings Feature 1: Effective utilization of space. The combination of the guide shaft and the linear bearing enables effective use of space, suitable for small mechanism designs.
Linear Bushings Feature 2: Selection can be made based on operating environment. The outer cylinder of the linear bearing is made of steel or stainless steel, and the retainer is made of stainless steel for harsh conditions or resin for low noise.
Linear Bushings Feature 3: Good interchangeability. Linear bearings have good interchangeability because they can be used with shafts randomly.
Linear Bushings Feature 4: Appropriate specifications can be selected according to the conditions of use.
Linear Bushings Feature 5: More cost effective than the linear guide.
Dimensional Drawing of Linear Bushings
When this product of Linear Bushings is initially delivered, its color may be partially inconsistent with the photo, in which case the actual product shall prevail, without prior notice.Specifications Overview of Linear Bushings
| Housing | Ball | Retainer | Operating Environment Temperature |  Accessories | ||
 Material |  Hardness |  Surface Treatment | Material | Material | ||
| Equivalent to SUJ2 | 58HRC～ | No Surface Treatment Electroless Nickel Plating | Equivalent to SUJ2 | Resin | -20 to 80℃ | Seal packing Material Nitrile Rubber (-20 to 120℃) |
If there are requirements for rust prevention, give priority to products with surface treatment of electroless nickel plating.Usage Method of Linear Bushings
| Product Drawings of Linear Bushings | Instructions for use Linear Bushings | ||||||||
 | When the linear bearing 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 bearing 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 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.
for details. 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.
■ Linear Bushings Dust prevention measures:
If dust or foreign matter enters the inside of the 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 Documents of Linear Bushings
Usage Linear Bushings Method.For anti-rust performance and maintenance of metal materials and their surface treatment, please refer to
Anti-rust Performance.Application Industries of Linear Bushings
| Electronic & Electrical Appliances | Automotive | Lithium battery | ||
 |  |  | ||
| LCD | Smart phone | Semiconductor | ||
 |  |  |
Related Products of Linear Bushings
Part Number
CAD Data download and 3D preview are not available because the part number has not yet been determined.
- *In order to open the CAD Data download and 3D preview screen, the part number must be fixed.
- Please confirm the part number from "Specification / Dimension"on the left side, and then perform the CAD Data Download / 3D Preview operation.
| Part Number | Standard Unit Price | Minimum order quantity | Volume Discount | Days to Ship | Inscribed Circle Dia. dr (Ø) | Overall Length L (mm) | Outer Cylinder Surface Treatment | Outer Dia. D (Ø) | Eccentricity (µm) | Basic Load Rating: Dynamic Load (Details) (N) | Basic Load Rating: Static Load (N) |
|---|---|---|---|---|---|---|---|---|---|---|---|
SGD 8.54 | 4 Piece(s) | Available | 5 Day(s) | 6 | 35 | No Surface Treatment | 12 | 0.04 | 324 | 529 | |
SGD 8.55 | 4 Piece(s) | Available | 5 Day(s) | 8 | 45 | No Surface Treatment | 15 | 0.04 | 431 | 784 | |
SGD 8.95 | 4 Piece(s) | Available | 5 Day(s) | 10 | 55 | No Surface Treatment | 19 | 0.04 | 588 | 1100 | |
SGD 8.96 | 4 Piece(s) | Available | 5 Day(s) | 12 | 57 | No Surface Treatment | 21 | 0.04 | 657 | 1200 | |
SGD 10.63 | 4 Piece(s) | Available | 5 Day(s) | 16 | 70 | No Surface Treatment | 28 | 0.04 | 1230 | 2350 | |
SGD 11.00 | 4 Piece(s) | Available | 5 Day(s) | 20 | 80 | No Surface Treatment | 32 | 0.04 | 1400 | 2740 | |
SGD 16.07 | 1 Piece(s) | Available | Same day | 25 | 112 | No Surface Treatment | 40 | 0.04 | 1560 | 3140 | |
SGD 19.99 | 1 Piece(s) | Available | Same day | 30 | 123 | No Surface Treatment | 45 | 0.04 | 2490 | 5490 | |
SGD 33.60 | 4 Piece(s) | Available | 5 Day(s) | 40 | 151 | No Surface Treatment | 60 | 0.050 | 3430 | 8040 | |
SGD 10.20 | 4 Piece(s) | Available | 5 Day(s) | 6 | 35 | [Surface Treatment] Electroless Nickel Plating | 12 | 0.04 | 324 | 529 | |
SGD 10.22 | 4 Piece(s) | Available | 5 Day(s) | 8 | 45 | [Surface Treatment] Electroless Nickel Plating | 15 | 0.04 | 431 | 784 | |
SGD 10.69 | 1 Piece(s) | Available | Same day | 10 | 55 | [Surface Treatment] Electroless Nickel Plating | 19 | 0.04 | 588 | 1100 | |
SGD 10.70 | 1 Piece(s) | Available | Same day | 12 | 57 | [Surface Treatment] Electroless Nickel Plating | 21 | 0.04 | 657 | 1200 | |
SGD 12.70 | 1 Piece(s) | Available | Same day | 16 | 70 | [Surface Treatment] Electroless Nickel Plating | 28 | 0.04 | 1230 | 2350 | |
SGD 13.13 | 4 Piece(s) | Available | 5 Day(s) | 20 | 80 | [Surface Treatment] Electroless Nickel Plating | 32 | 0.04 | 1400 | 2740 | |
SGD 19.17 | 1 Piece(s) | Available | Same day | 25 | 112 | [Surface Treatment] Electroless Nickel Plating | 40 | 0.04 | 1560 | 3140 | |
SGD 23.85 | 1 Piece(s) | Available | Same day | 30 | 123 | [Surface Treatment] Electroless Nickel Plating | 45 | 0.04 | 2490 | 5490 | |
SGD 40.07 | 4 Piece(s) | Available | 5 Day(s) | 40 | 151 | [Surface Treatment] Electroless Nickel Plating | 60 | 0.050 | 3430 | 8040 |
Loading...
When this product is initially delivered, its color may be partially inconsistent with the photo, in which case the actual product shall prevail, without prior notice.| Housing | Ball | Retainer | Operating Environment Temperature |  Accessories | ||
 Material |  Hardness |  Surface Treatment | Material | Material | ||
| Equivalent to SUJ2 | 58HRC～ | No Surface Treatment Electroless Nickel Plating | Equivalent to SUJ2 | Resin | -20 to 80℃ | Seal packing Material Nitrile Rubber (-20 to 120℃) |
■Dimension Specification Table
| dr | D Tolerance | L | ℓ | H | T | d | d1 | t | P.C.D. | Lateral misalignment | Number of ball rows | * Perpendicularity | Basic Rated Load | Static allowable (N·m) | Weight (g) | |||||
| I.D. | Tolerance | No Surface Treatment | With Surface Treatment | Tolerance | C (Dynamic) N | Co (Static) N | Round Flanged | |||||||||||||
| 6 | 0 - 0.010 | 12 | 0 -0.025 | 0 -0.020 | 35 | ±0.3 | 15 | 28 | 5 | 3.5 | 6 | 3.1 | 20 | 0.030 | 4 | 0.04 | 324 | 529 | 2.18 | 31 |
| 8 | 15 | 45 | 20 | 32 | 24 | 431 | 784 | 4.31 | 51 | |||||||||||
| 10 | 19 | 55 | 24.5 | 40 | 6 | 4.5 | 7.5 | 4.1 | 29 | 588 | 1100 | 7.24 | 98 | |||||||
| 12 | 21 | 57 | 25.5 | 42 | 32 | 657 | 1200 | 10.9 | 110 | |||||||||||
| 16 | 28 | 70 | 32 | 48 | 38 | 5 | 1230 | 2350 | 19.7 | 190 | ||||||||||
| 20 | 0 - 0.012 | 32 | 0 -0.035 | 0 -0.030 | 80 | 36 | 54 | 8 | 5.5 | 9 | 5.1 | 43 | 0.040 | 1400 | 2740 | 26.8 | 260 | |||
| 25 | 40 | 112 | 52 | 62 | 51 | 6 | 1560 | 3140 | 43.4 | 540 | ||||||||||
| 30 | 45 | 123 | 56.5 | 74 | 10 | 6.6 | 11 | 6.1 | 60 | 2490 | 5490 | 82.8 | 680 | |||||||
| 35 | 0 - 0.014 | 52 | 135 | 62.5 | 82 | 67 | 0.050 | 0.05 | 2650 | 6270 | 110 | 1020 | ||||||||
| 40 | 60 | 151 | 69 | 96 | 13 | 9 | 14 | 8.1 | 78 | 3430 | 8040 | 147 | 1570 | |||||||
If there are requirements for rust prevention, give priority to products with surface treatment of electroless nickel plating on other pages.* mark shows the verticality between Part D and the flange mounting surface.For information on the flanged height adjusting ring, please refer to the 
Adjusting Ring.Basic Information
| Type | Flange | Flange Type | Center Flanged | Style | Standard |
|---|---|---|---|---|---|
| Outer Cylinder Material | SUJ2 Equivalent | Lubrication Type | Not Provided | Accuracy | High Grade |
| Ball Recirculating Type | Double | Motion | Linear | Types | Center Flanged |
| Length | Double | Flange Shape | Round Flange | Ball Material | Equivalent to SUJ2 |
| Retainer Material | Resin | Seal | Provided | Greased Filled | Not Provided |
Specification/Dimensions
-
Inscribed Circle Dia. dr(Ø)
-
Overall Length L(mm)
-
Outer Cylinder Surface Treatment
- No Surface Treatment
- Surface Treatment
-
Outer Dia. D(Ø)
-
Eccentricity(µm)
-
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: 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: Low Temp. Black Chrome Plating → 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.
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