Registar
Condições de filtragem
  • Estoque
  • I.D. d(mm)
  • O.D. D(mm)
  • Overall Length L(mm)
  • Type
  • CAD
  • Dias de envio estimados
    • Tudo
    • Envio possível no próprio dia
  • Plain bearing bushes / flange selectable / brass (MPTSZ6-20)

    Número da peça:

    MPTSZ6-20
    Limpar
    Quantidade:

    Desenho de contorno e tabela de especificações

    Back to the Category Plain Bearing Bushings

    Technical Drawing - Plain Bearing Bushings

     

    Available dimensions and tolerances can be found under the tab More information.
     

    Basic Properties (e.g., material, hardness, coating, tolerance) - Plain Bearing Bushings

      Material: High Tensile Brass Alloy
    Solid Lubricant Embedded
      Accessory: Hex Socket Low Head Cap Screws 2 ~ 4 pcs.

    Further specifications can be found under the tab More information.
     

    Composition of a Product Code - Plain Bearing Bushings
     
    Part Number-L
    MPTZ12-30

     

    Lista de números de peça

    Número de itens
    Número da peça
    MPTSZ6-20

    I.D. d

    (mm)

    O.D. D

    (mm)

    Overall Length L

    (mm)

    RoHS?Quantidade mínima de encomenda
    6
    10
    20
    10
    1 unidades
    Preço unitário (excluindo IVA)(Preço unitário incluindo IVA)
    Data de envio standard
    26.71 €13.09 €
    ( 15.58 € )
    Item em stock - 1 dia útilDisponível para envio no próprio dia

    Informações detalhadas

    Informações básicas

    [Features] Thanks to the built-in flange specifications, the labour hours for assembly can be reduced.

    Contorno e especificações

    Back to the Category Plain Bearing Bushings

    Technical Drawing - Plain Bearing Bushings

     

    Overview of the various designs as PDF

     

    Specification Tables - Plain Bearing Bushings
     
    Part NumberLDh7HTtd1d2P.C.D.WFAAccessory: Hex Socket Low Head Cap Screw
    TypedF7
    I.D. F7
    MPTZ
    MPTSZ
    MPTNZ
    6+0.022
    +0.010
    1520         100
    - 0.015
    2542.23.561720-17M3-10x2
    *(4)
    8+0.028
    +0.013
     2025        120
    - 0.018
    27192219
    10 202530       1429212321
    12+0.034
    +0.016
     202530       1836534.57.5262826M4-12x2
    *(4)
    13 20253035      190
    - 0.021
    37272927
    16 2025303540     224030311824M4-12x4
    20+0.041
    +0.020
      2530354050    284963.75.5938382231M5-16x4
    25   3035405060   330
    - 0.025
    5443422535
    30    3540506070  386384.26.61150503040M6-20x4
    35+0.050
    +0.025
          506070  446956543643
    40       607080 5082105.291466643854M8-25x4
    50        7080100620
    - 0.030
    9478735060
    * Values in ( ) are the number of screws included in MPTSZ.
    General Information - Plain Bearing Bushings


    Plain bearing bushing, maintenance-free, selection details

    - Material: sintered bronze, copper alloy with solid lubricant (Graphite), cast iron with solid lubricant, POM (polyacetal), PTFE (polytetraflouroethylene), composite steel, aluminum with fluoroplastic multi-coating
    - Designs: straight, with collar, with housing and flange, with housing and block shape
    - Housing coatings: nickel-plated, chrome-plated
    - ISO tolerances: E7, G6, H7, h7, m6, r6
    - Inner diameter [d]: 3 mm to 100 mm
    - Outer diameter [D]: 4.6 mm to 120 mm
    - Length [L]: 3 mm to 188 mm
    - Permissible speed (max): 0.15 to 3.33 m/s
     

    Description/Basics

    Maintenance-free plain bearing bushings are suitable for linear and rotary motion. Movement is ensured by gliding. Thus, no rolling components are necessary, as with a rolling bearing.
    Plain bearings can be selected in various shapes, materials and sizes at MISUMI. Bearing bushings are also already available integrated into the housing to make assembly easy and convenient.
    Maintenance-free plain bearings have the benefit of not requiring maintenance or only little maintenance due to their integrated lubrication properties. This means that an external lubrication system can be omitted, which would not only require extra installation space, but is often very costly.
    In contrast to rolling bearings, gliding bearings can generally accommodate high load-bearing capacities due to the larger contact area and require reduced installation space. The service life of the plain bearing bushings must be calculated depending on the application, since various influencing variables, such as roughness, stroke or rotational speed, have an influence on the service life.

     

    Plain bearing bushings

    Application example: plain bearing bushing
     

    Bearing types in comparison

     

    Plain bearing bushings

    Linear ball bearing

    Bearings

    Plain bearing bushing, solid lubricant

    Linear ball bearing

    Ball bearing

    Plain bearing

    Roller bearing

    Roller bearing

    Lubrication

    without

    required

    required

    linear tables

    suitable

    well suitable

    not suitable

    Rotational movement

    suitable

    not suitable

    well suitable

    High load-carrying capacity

    well suitable

    not suitable

    suitable

    Heat resistance

    well suitable

    not suitable

    not suitable

    Corrosion resistance

    suitable

    not suitable

    not suitable

    Wear resistance

    Poor

    well suitable

    well suitable

    Space requirement

    low

    high

    high

    Comparison Table - Plain bearing bushings, linear ball bushings, bearings

    For more detailed information, please click on the More information tab


    Function

    The primary task of plain bearings is to guide and support shafts. The use of integrated lubricants significantly reduces friction and wear. The lubricants and materials of the plain bearing are always selected in such a way that the wear is specifically on the bearing bushing in order to protect the more expensive shaft from wear as much as possible.
    The stored lubricants are released during operation. In most cases, it is released by heat and micro-abrasion. If the friction between the shaft and the plain bearing increases, the lubricant is released from the plain bearing and forms a protective lubricant film between the plain bearing and the shaft.


    Sinter Bushings
    A very common plain bearing is the plain bearing made of sintered metal. For this purpose, granules made of a copper alloy, such as brass or bronze, are heated and pressed into a sinter bushing. The pores of the sintered metal remain open through this process. The sintered bushing is then soaked in heated, liquid lubricant. During the cooling process of the lubricant, it solidifies and is stored in the pores of the sintered bushing.
    Frictional heat conducts the lubricant embedded in the pores to the contact surface and forms a protective lubricant film between the gliding bearing bushing and the gliding partner.
    Sinter bushings are often used in combustion engines because they have good emergency running properties. This property of the sintered metal plain bearings can also protect the shaft from damage in many other applications. If sintered slide bearings are consistently supplied with oil, these can also withstand very high speeds.

    Sinter bushing

    Example of a sinter bushing
     

    Plain bearing with solid lubricant
    In the case of the plain bearings with solid lubricant, the included graphite ensures the lubrication of the contact surface. Solid lubricant has good lubrication properties, especially at high pressures and higher temperatures. Micro-abrasion releases graphite particles from the bearing bushing lubrication pockets and directs them to the contact surface.
    The positions of the solid lubricant bearings (1) allow for the most uniform lubrication possible and thus ensure a low friction value and reduced wear.

    Plain bearing with solid lubricant

    (1) Solid lubricant, (2) plain bearing bushing
     

    MISUMI also offers plain bearing bushings with solid lubricant with an integrated thrust washer. The integrated thrust washer is a flange with solid lubricant. These collar bushings can also be used to protect a gear wheel or shaft shoulder from wear. At the same time, an additional thrust disc can be dispensed with, which reduces the variety of parts and simplifies assembly and maintenance. These advantages of the collar bushing allow for use as an axial sliding bearing.

    Plain bearing bushings with solid lubricant and thrust washer

    (1) Solid lubricant, (2) plain bearing bushing
     

    Plain bearings made of plastic
    Plain bearings made of plastic have a good chemical resistance. They are also well suited for locations in a corrosive environment. The applied plastics have principally good gliding properties, which can additionally be improved by additives. Contrary to the conventional flange bushing, plastic plain bearings can also be combined with aluminum shafts.
    Plastic plain bearings are relatively cost-effective and light. Therefore, they are used in many areas, often in small devices such as printers or hinge elements.
    At very high speeds, plastic bearing bushings can burn out or melt due to the resulting frictional heat. Therefore, it is particularly important to maintain the maximum speeds of rotation and ambient temperatures in plastic plain bearings. At higher speeds of rotation and bearing powers, a metallic plain bearing is usually used.
     

    Plain bearings made of composite material
    Plain bearings made of composite material consist of a metallic base carrier and a plastic layer applied on the inside. Due to the metallic outer ring, plain bearings made of composite material are generally more stable than plastic plain bearings. Nevertheless, they do not have to forego the advantages (chemical resistance, etc.) of the plastic.
    Some plain bearings are provided with an additional composite layer made of sintered bronze. This is inserted between the metallic outer ring and the inner ring made of plastic, which ensures an additional emergency running property if the plastic is closed. Sliding bearing bushings with a PTFE composite layer can withstand temperatures up to 280°C and thus work in a high temperature range than conventional plastic plain bearings (approx. 80°C).
    Plain bearings with a collar or without a collar made of composite material have a very thin-walled design and are therefore very space-saving.

    Plain bearings made of composite material

    (1) Plastic/composite layer, (2) metal base carrier
     

    Plain bearings with housing
    All previously mentioned plain bearings are already available from MISUMI mounted in housings (flange housings or block housings). This reduces the assembly time significantly.
    In addition, the housing units have the additional advantage that they are available with a contact seal or contactless seal (1). The contact seal prevents small dust particles from getting onto the gliding surface of the plain bearing. The contactless seal design prevents large debris from entering while reducing the gliding resistance compared to the contact seal design.

    Plain bearings with housing

    (1) Seal, (2) retaining rings, (3) maintenance-free plain bearing, (4) housing
     

    Areas of Application

    Maintenance-free plain bearings are suitable for linear and rotary motion. They are used in many applications, from simple hinged mechanisms to precise linear guides. Due to their versatility, plain bearings are indispensable in various industries of mechanical engineering and plant engineering.
    Due to their large contact surface, plain bearings can generally accommodate high loads. Compared to rolling bearings, plain bearings are also quieter, require less maintenance and are less susceptible to contamination.
    Collar bushings with solid lubricants can also serve as axial plain bearings, since MISUMI offers flange bushings with integrated solid lubricants.
    Bearing bushings require reduced installation space. Therefore, plain bearings are used in applications in which rolling bearings are not possible due to limited installation space.
    A particularly space-saving and thin-walled plain bearing offered by MISUMI is type MPBZU.
     

    Materials

    MISUMI plain bearings are available in the following material compositions:
    - Sintered bronze
    - Copper alloy with solid lubricant (Graphite)
    - Cast iron with solid lubricant
    - POM (polyacetal)
    - PTFE (polytetraflouroethylene)
    - Steel with multi-coating
    - Aluminum with fluoroplastic multi-coating

     

    Dimensions

    Maintenance-free plain bearings are available in many dimensions at MISUMI:
    - ISO tolerances: E7, G6, H7, h7, m6, r6
    - Inner diameter [d]: 3 mm to 100 mm
    - Outer diameter [D]: 4.6 mm to 120 mm
    - Length [L]: 3 mm to 188 mm

     

    Shaft Tolerance
    Shaft tolerance is used to create the clearance between the plain bearing bushing and the shaft. Which shaft tolerance is recommended for a plain bearing with a plain bearing bushing depends on the application and required precision. MISUMI offers plain bearings in the ISO tolerances E7, G6 and H7. For particularly precise applications, MISUMI also offers linear shafts in the ISO tolerances g6 and f8.

     

    Surface Roughness
    The surface roughness of the shaft has a major impact on the wear of the plain bearing bushing. In order to reduce wear, a uniformly ground shaft is recommended as a gliding partner. A good roughness of approx. 0.4 to 1.6 μm contributes to a good glide and low wear.
     

    Instructions for Use / Installation Information - Plain Bearing Bushings


    Instructions for use

    Design

    Properties

    Shapes

    Copper alloy
    Plain bearing with solid lubricant

    • High temperature resistance
    • High corrosion resistance
    • Excellent impact resistance
    • Ideal for high loads and low speeds of rotation

    • straight
    • with collar
    • Axial design (integrated thrust washer)
    • Flange housing
    • Block housing

    Sintered bronze
    Sinter bushing

    • Resistant to friction welding
    • Short movements are possible
    • Ideal for low loads and high speeds of rotation

    • straight
    • with collar
    • with flange

    Cast steel
    Cast iron plain bearing

    • Ideal for medium loads and low speeds of rotation

    • straight
    • with collar
    • with housing

    Multi-coating
    Composite layer plain bearing

    • High temperature resistance
    • Ideal for high loads and low speeds of rotation
    • Thin-walled and compact

    • straight
    • with collar
    • with housing

    Plastic
    Plastic plain bearing

    • High temperature resistance (PTFE)
    • Excellent chemical resistance (PTFE)
    • Ideal for low loads and high speeds of rotation

    • straight
    • with collar

    Comparison Table - Plain Bearing Sleeve Versions

    For more information on material properties, environmental conditions, and mechanical properties, see this PDF.
     

    Installation Information

    Press-in
    Maintenance-free plain bearing bearings (2) must be carefully pressed into a housing with a vice or press (press fit). To facilitate this process, the edge of the inner diameter of the housing is chamfered (1). It is recommended to apply a small amount of lubricant to the housing (3). If the housing fit is too tight, this can affect the inner diameter of the maintenance-free sliding bearing and lead to increased wear. You can find the suitable housing tolerance for the respective plain bearing under the tab More Information.

    Plain bearings with housing

    (1) Phase, (2) plain bearing bushing, (3) housing
     

    Turning Stop Screw
    An undesired rotation of a maintenance-free plain bearing bushing can be prevented with a turning stop screw (1) (press fit/transition fit). The use of a rotation stop screw (1) is recommended for high loads, rotational speeds and temperatures.

    Plain bearing with rotary stop screw

    (1) Turning stop screw
     

    Bonding
    If for various reasons you cannot use of a rotation stop screw, a maintenance-free sliding bearing bushing can be glued (2) into the housing with adhesive (play fit). Depending on the external influences, this can be done with Loctite. For applications that require high precision, this variant is not recommended due to the positioning accuracy.

    Glued plain bearing

    (1) Plain bearing bushing, (2) adhesive layer
     

    Application Examples - Plain Bearing Bushings

     

    Gleitlager mit Flansch
    (1) Plain bearing bushing with flange housing, (2) servo press, (3) broach, (4) workpiece (gear wheel)
    GLeitlager gesintert
    (1) Plain bearing bushing, (2) hinge bolt
     
    Gleitlager mit Festschmierstoff
    (1) Plain bearing bushing, (2) flange, (3) switch sensor, (4) air cylinder, (5) quick-change holder, (6) clamp
    Gleitlager mit Festschmierstoff
    (1) Plain bearing bushings in axial design, (2) hinge bolt, (3) plain bearing bushing (4) profile

      

    Supplementary Article

     

    Shafts

    Linear waves


    Adjusting rings/clamping rings

    Adjusting rings


    Shaft holder

    Shaft holder


    Hinge bolts

    Hinge bolts


    Axle bolts

    Axle bolts

     

    Industrial Applications

     

    3D printer industry
    3D printer industry
    Automotive industry
    Automotive industry
    Pharmaceutical industry
    Pharmaceutical industry
    Packaging industry
    Packaging industry