Polyurethane rubber bumper / with countersunk hole (AZXHK20-25-M5)

Polyurethane rubber bumper / with countersunk hole AZXHK20-25-M5
  • Promotional pricing ends 31/12/2024
  • Volume Discount

Product Details:

Manufacturer part number: AZXHK20-25-M5

Brand: MISUMI

Price: 4.04

Delivery time: 10 Days


Technical Data:

Detailed Material: [Standard Urethane] Ether Polyurethane

Hardness (shore, asker): Shore A90

O.D. D: 20 Ø

Length L: 25 mm

Applicable Screw Size [M]: 5


Part Number

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the corresponding part number is displayed here.

AZXHK20-25-M5

Back to the Category Discs/Sleeves (Rubber, Caoutchouc, Foam, Felt)

Technical Drawing - Polyurethane Rubber Washers

Urethane Bumpers/Counterbored:Related Image
Open the technical drawing in the new window

 

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

Basic Properties (e.g., material, hardness, coating, tolerance) - Polyurethane Rubber Washers

TypeUrethane onlyWith CollarMaterialHardnessColor
Black OxideElectroless Nickel PlatingEN 1.4301 Equiv.
L SelectableAZXSKAZXSCAZXSMAZXSSStandard Urethane
(Ether Polyurethane)
Shore A95Natural Color
AZXHKAZXHCAZXHMAZXHSShore A90
AZXMKAZXMCAZXMMAZXMSStandard Urethane
(Ester Polyurethane)
Shore A70
AZXLKAZXLCAZXLMAZXLSShore A50
AZEXHKAZEXHC--Abrasion Resistant UrethaneShore A90Dark Brown
AZEXMKAZEXMC--Shore A70
AZXHHKAZXHHC--Heat Resistant UrethaneShore A90Brown
L ConfigurableAZXSAZCSAZCS-MAZCS-SStandard Urethane
(Ether Polyurethane)
Shore A95Natural Color
AZXHAZCHAZCH-MAZCH-SShore A90
AZXMAZCMAZCM-MAZCM-SStandard Urethane
(Ester Polyurethane)
Shore A70
AZXLAZCLAZCL-MAZCL-SShore A50
 

Further specifications can be found under the tab More information.

Composition of a Product Code - Polyurethane Rubber Washers

Part Number-L-M-H1
AZXMC25
AZXL50
AZCM40
-
-
-
20
96
70
-
-
-
M6
M10
M10
-20

General Information - Polyurethane Rubber Washers

Rubber washer - rubber sleeve with counterbore - rubber sleeve - rounded rubber damper - foam washer - foam sleeve

 

Selection details of rubber discs/rubber sleeves

- Material: heat-resistant antistatic, abrasion-resistant, highly abrasion-resistant, low-impact polyurethane rubber (PU/PUR), Vulkollan, ceramic polyurethane rubber, nitrile rubber sponge (NBR), chloroprene rubber (CR), ethylene cautchouc (EPDM), silicone rubber (SI), fluoro-cautchouk (FPM), hard rubber, butyl rubber (IIR), natural rubber, nitrile rubber foam, chloroprene rubber foam, polyethylene foam (EPDM foam), EPT sealing material, Silicone rubber foam, fluoro-rubber foam, special polyurethane foam (SOFRAS), polyester felt, polyester felt

- Hardness: Asker C5 to C35, Asker F75 to F85, Shore A15 to A95

- Versions: disc with bore holes, sleeves with holes, sleeves without holes, sleeves with counterbores, sleeves with external threads, sleeves with collar, dampers with round tip, dampers with conical tip

- Inner diameter: up to 80 mm

- Outer diameter: 6 to 100 mm

- Length: 1 to 10 mm (discs), 10 to 500 mm (sleeves)

 

Description/Basics

Rubber discs and rubber sleeves, also called rubber buffers, are generally used for vibration damping and impact damping. Rubber sleeves are often used as stopper buffers in industry. Rubber discs are occasionally also used as seals.
Discs and sleeves made of natural rubber are offered in different materials and hardnesses.

While rubber discs are often used for sealing, rubber sleeves are increasingly used as rubber buffers, stopper buffers, or elastomer dampers. MISUMI already offers such a rubber sleeve as a rubber buffer with external thread or counterbore for fastening.
The rubber buffer is also available with a vulcanized metal collar, which not only allows for a firm assembly, but also sits in the anti-backlash rubber sleeve. These adhesives are also available separately. In addition to the material of the rubber buffer, the shape of the stopper buffer is also responsible for the damping characteristic. conical or rounded rubber buffers can also develop a progressive damping curve that generates increasing damping.

Depending on the application and environmental influences, MISUMI offers rubber discs and rubber sleeves in various basic materials with the appropriate resistance. An overview of the intended uses of the respective natural rubber can be found under Natural Rubber Properties as PDF .
The rubber buffers made of polyurethane rubber are also available in an antistatic version. The specific resistance of antistatic rubber discs and rubber sleeves prevents static charging. This can prevent damage to electronic components.
For high temperature applications, MISUMI offers heat-resistant polyurethane rubber, which can withstand temperatures of approx. +120°C (see Specifications for further information).
Vulkollan, on the other hand, is a very abrasion-resistant polyurethane, the abrasion resistance of which is six times higher compared to conventional polyurethane.
Ceramic polyurethane washers and sleeves contain ceramic particles. Despite a low Shore hardness, they can be machined to give them a smooth surface.
MISUMI also offers foam discs and foam sleeves. In addition to damping, these can also have sealing properties. This is achieved by the foam discs due to the closed or semi-closed pores (EPT sealer) inside the material. For semi-closed pores, the pores are sealed under load. Therefore, the type of pores must always be observed for foams in order to select the appropriate foam depending on the application. You can get help for your selection by following this link.
Further properties of natural rubbers and foams can be found in the Properties PDF.
In addition to the aforementioned basic materials, the MISUMI online shop also offers felt discs and felt sleeves. Felt has the properties of capillary action and can absorb and release liquids such as oil. In addition, felt is gentle on sensitive surfaces and is often used for polishing surfaces.

A antivibration materials can also be used for two-sided mounting to dampen vibration.
MISUMI also offers vibration damping and impact damping materials in the form of sheets.

Application Examples - Polyurethane Rubber Washers

Application example - rubber roller with rubber sleeve - rubber roller with roller bearing - roller bearing with axle - running wire

Application example: rubber roller
(1) Rubber sleeve, (2) Roller bearing, (3) Axles / Rotary Shafts, (4) Catch ropes

Application example - cylinder stopper buffer - cylinder end stop - rubber buffer - rubber buffer for cylinder -

Application example: cylinder stopper buffer
(1) Rubber washer, (2) Floating joints, (3) Pneumatic cylinder

 

Industrial Applications

3D printer industry
Automotive industry
Pharmaceutical industry
Packaging industry

Part Number:  

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Part Number
AZXHK20-25-M5
Part Number
Standard Unit Price
Minimum order quantityVolume Discount
Standard
Shipping Days
?
RoHSDetailed Material Hardness (shore, asker) O.D. D
(Ø)
Length L
(mm)
Applicable Screw Size [M] Collar Material Collar Surface Treatment H1
(mm)

4.04 €

1 Available 10 Days 10[Standard Urethane] Ether PolyurethaneShore A9020255No Collar--

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  1. 1

Back to the Category Disks/Sleeves (Rubber, Caoutchouc, Foam, Felt)

Technical Drawing - Polyurethane Rubber Washers

Urethane Bumpers/Counterbored:Related Image
Open the technical drawing in the new window

Specification Tables - Polyurethane Rubber Washers

■L Selectable
Part NumberSelectionMUrethane only H1With CollarUnit Price
H2Collar No.No CollarWith Collar
TypeDLUrethane onlyBlack OxideElectroless Nickel PlatingEN 1.4301 Equiv.
Standard UrethaneAbrasion ResistantHeat ResistantStandard UrethaneAbrasion ResistantHeat ResistantStandard UrethaneStandard Urethane
AZXKAZEXKAZXHHKAZXCAZEXCAZXHHCAZXMAZXS
        1212      M35-   -----
        151215     53     
No CollarWith CollarWith CollarWith Collar     1520    M44
Urethane
only
Black
Oxide
Electroless
Nickel Plating
EN 1.4301
Equiv.
    20  2025   774A        
      2025   M55
AZXSKAZXSCAZXSMAZXSS(StandardShore A95)25  2025   M6886        
AZXHKAZXHCAZXHMAZXHS(StandardShore A90)  2025   M868A
AZXMKAZXMCAZXMMAZXMS(StandardShore A70)30  202530  M61086        
AZXLKAZXLCAZXLMAZXLS(StandardShore A50)   253040 M88
AZEXHKAZEXHC  (Abrasion ResistantShore A90)40    3040 M10121010        
AZEXMKAZEXMC  (Abrasion ResistantShore A70)    304050M1212
AZXHHKAZXHHC  (Heat ResistantShore A90)50    3040 M101510        
             4050M1212
        60    3040 M1010        
             4050M1212

■ L Configurable
Part NumberL (1mm Increment)M SelectionH1
1mm Increment
H2 Selectable
TypeDUrethane onlyWith Collar
        1515~8025~80M3 M45≤H15(M3)7(M4)
No CollarWith CollarWith CollarWith Collar    20M4 M57(M4 M5)
Urethane
only
Black
Oxide
Electroless
Nickel Plating
EN 1.4301
Equiv.
    25M6
M8
8(M6 M8)
    30
AZXSAZCSAZCS-MAZCS-S(StandardShore A95)4025~15030~150M10
M12
10(M10 M12)
AZXHAZCHAZCH-MAZCH-S(StandardShore A90)50
AZXMAZCMAZCM-MAZCM-S(StandardShore A70)60
AZXLAZCLAZCL-MAZCL-S(StandardShore A50)8025~20040~200M12
M16
10(M12)
15(M16)
        100

Basic information

Shape Counterbored Material Urethane

This page is Polyurethane rubber bumper / with countersunk hole, part number AZXHK20-25-M5.
You can find the detail information about specifications and dimensions on part number AZXHK20-25-M5.

Frequently Asked Questions (FAQ)

Question:

What is Vulkollan?

Answer:

Vulkollan is a highly abrasion-resistant polyurethane rubber that has high wear resistance. It is one of the high-performance rubbers that has little pressure deformation and can withstand high impact forces. In addition, Vulkollan has a high tear strength. However, over time Vulkollan may change its colour, but without losing its mechanical properties.

Question:

Which rubber is resistant?

Answer:

Vulkollan is an abrasion-resistant material. It has an approx. six-fold higher abrasion resistance than conventional polyurethane materials. Vulkollan is particularly suitable for applications where high abrasion is expected.

Question:

Which rubber washer is oil-resistant?

Answer:

A rubber disc made of nitrile rubber (NBR) is highly resistant to various oils. This material is often used as a seal due to its good heat resistance and abrasion resistance.

Question:

Can a rubber sleeve be glued?

Answer:

A rubber sleeve or rubber disc can be stuck in or glued in. However, it must be ensured that the correct adhesive is selected in relation to the material of the elastomer. If this is not taken into account, the adhesive does not have the desired effect or even attack and degrade the elastomer. In addition, the adhesive should support the respective property of the material, e.g., antistatic or temperature resistance.

Show more FAQ Close

Variation of this product

Part Number
AZEXHC15-20-M4
AZEXHC20-20-M4
AZEXHC20-20-M5
AZXHK25-20-M6
AZXHK25-20-M8
AZXHK25-25-M6
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountStandard
Shipping Days
?
RoHSDetailed Material Hardness (shore, asker) O.D. D
(Ø)
Length L
(mm)
Applicable Screw Size [M] Collar Material Collar Surface Treatment H1
(mm)

6.67 €

1 Available 10 Days 10Abrasion Resistant UrethaneShore A9015204EN 1.1191 Equiv.Black Oxide-

6.96 €

1 Available 10 Days 10Abrasion Resistant UrethaneShore A9020204EN 1.1191 Equiv.Black Oxide-

6.96 €

1 Available Same day

Stock

10Abrasion Resistant UrethaneShore A9020205EN 1.1191 Equiv.Black Oxide-

4.87 €

1 Available 10 Days 10[Standard Urethane] Ether PolyurethaneShore A9025206No Collar--

4.87 €

1 Available 10 Days 10[Standard Urethane] Ether PolyurethaneShore A9025208No Collar--

4.87 €

1 Available 8 Days 10[Standard Urethane] Ether PolyurethaneShore A9025256No Collar--

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