Polyurethane rubber washers / countersunk hole with metal disc / standard length (AYHK25-30)

Polyurethane rubber washers / countersunk hole with metal disc / standard length AYHK25-30
  • Promotional pricing ends 30/11/2024
  • Volume Discount

Product Details:

Manufacturer part number: AYHK25-30

Brand: MISUMI

Price: 4.87

Delivery time: 10 Days


Technical Data:

Material: Urethane

Detailed Material: [Standard Urethane] Ether Polyurethane

Hardness (shore, asker): Shore A90

Type: L Dimension Fixed Type

O.D. D: 25 Ø


Part Number

Once your search is narrowed to one product,
the corresponding part number is displayed here.

AYHK25-30

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

Technical Drawing - Polyurethane Rubber Washers

Urethane Washers/Counterbored with Metal Washer/Standard Lengths: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

L SelectableL ConfigurableUrethane, RubbersWasher
MaterialColorHardnessMaterial
AYSKAYFSEther Type
Polyurethane
BlackShore A95EN 1.4301 Equiv.
AYHKAYFHShore A90
AYMKAYFMEster Type
Polyurethane
BlackShore A70
AYLKAYFLShore A50
-AYFYShore A30
-AYFHEAntistatic
Polyurethane
GrayShore A90
-AYFMEShore A70
-AYFLEShore A50
-RBFNNitrile Rubber (NBR)BlackShore A70
-RBFULow Elasticity Rubber (Hanenaito®)BlackShore A57
-RBFSSilicon Rubber (SI)Light GrayShore A70
-RBFFFluororubber (FPM)BlackShore A80
Hanenaito® is a registered trademark of Naigai Rubber Industry Co., Ltd.

■Characteristic Values of Antistatic Urethane
Specific Volume Resistivity2.1x108Ω • cm
Surface Resistivity4.0x109
(Conditions: Temperature 30°C Humidity 60%)
All other properties are equal to those of urethane of the same hardness.


Further specifications can be found under the tab More information.

Composition of a Product Code - Polyurethane Rubber Washers

Part Number-L 
AYSK12-10 
AYFY25-52 

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
AYHK25-30
Part Number
Standard Unit Price
Minimum order quantityVolume Discount
Standard
Shipping Days
?
RoHSMaterial Detailed Material Hardness (shore, asker) Type O.D. D
(Ø)
Length L
(mm)

4.87 €

1 Available 10 Days 10Urethane[Standard Urethane] Ether PolyurethaneShore A90L Dimension Fixed Type2530

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

Technical Drawing - Polyurethane Rubber Washers

Urethane Washers/Counterbored with Metal Washer/Standard Lengths:Related Image
Open the technical drawing in the new window

Specification Tables - Polyurethane Rubber Washers

■L Selectable (Urethane)
Part NumberL
Selection
(M)
Applicable Screw
(d1)d2VUnit Price
TypeDL10L15L20L25L30L40L50
AYSK (x1.1)
AYHK (x1.0)
AYMK (x1.1)
AYLK (x1.1)
( ) Material Multiplier
1210      M31163 ------
15101520    M41484   ----
2010152025   M5199.55    ---
251015202530  M624116     --
30 1520253040 M829148-     -
40   25304050M10391710---    

■L Configurable (Urethane)
Part NumberL
1mm Increment
(M)
Applicable Screw
(d1)d2VUnit Price
TypeDL5~40L41~60L61~80
AYFS (x1.1)
AYFH (x1.0)
AYFM (x1.1)
AYFL (x1.0)
AYFY (x1.3)

AYFHE (x1.2)
AYFME (x1.2)
AYFLE (x1.4)
125~80M31163   
15M41484   
20M5199.55   
25M624116   
30M829148   
( ) Material Multiplier40M10391710   
The price of this product is the unit price shown in the table multiplied by material multiplier.
 
(Ex.) 
 
Part Number-L   (Unit Price) x (Material Multiplier)
AYFHE30-30 >>
■L Configurable (Rubber)
Part NumberL
1mm Increment
(M)
Applicable Screw
(d1)d2VUnit Price
TypeDRBFNRBFURBFSRBFF
RBFN
RBFU
RBFS
RBFF
155~30M41484    
20M5199.55    
25M624116    
30M829148    

Basic information

Shape Bumper (Thickness 10mm~)

This page is Polyurethane rubber washers / countersunk hole with metal disc / standard length, part number AYHK25-30.
You can find the detail information about specifications and dimensions on part number AYHK25-30.

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
AYHK15-20
AYHK20-10
AYHK20-15
AYHK30-15
AYHK30-20
AYHK30-25
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountStandard
Shipping Days
?
RoHSMaterial Detailed Material Hardness (shore, asker) Type O.D. D
(Ø)
Length L
(mm)

3.47 €

1 Available 10 Days 10Urethane[Standard Urethane] Ether PolyurethaneShore A90L Dimension Fixed Type1520

3.35 €

1 Available Same day

Stock

10Urethane[Standard Urethane] Ether PolyurethaneShore A90L Dimension Fixed Type2010

3.47 €

1 Available Same day

Stock

10Urethane[Standard Urethane] Ether PolyurethaneShore A90L Dimension Fixed Type2015

4.04 €

1 Available 10 Days 10Urethane[Standard Urethane] Ether PolyurethaneShore A90L Dimension Fixed Type3015

4.04 €

1 Available 10 Days 10Urethane[Standard Urethane] Ether PolyurethaneShore A90L Dimension Fixed Type3020

4.18 €

1 Available 10 Days 10Urethane[Standard Urethane] Ether PolyurethaneShore A90L Dimension Fixed Type3025

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