Polyurethane rubber bumper / with countersunk hole (AZXHHK20-20-M4)

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MISUMI

Product Details:

Manufacturer part number: AZXHHK20-20-M4

Brand: MISUMI

Price: 6.12 €

Delivery time: 10 Days

Technical Data:

Detailed Material: Heat Resistant Urethane

Hardness (shore, asker): Shore A90

O.D. D: 20 Ø

Length L: 20 mm

Applicable Screw Size [M]: 4

Part Number

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AZXHHK20-20-M4

Drawing / Specifications
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Part Numbers
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Technical Information

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

Type	Urethane only	With Collar			Material	Hardness	Color
Type	Urethane only	Black Oxide	Electroless Nickel Plating	EN 1.4301 Equiv.	Material	Hardness	Color
L Selectable	AZXSK	AZXSC	AZXSM	AZXSS	Standard Urethane (Ether Polyurethane)	Shore A95	Natural Color
	AZXHK	AZXHC	AZXHM	AZXHS	Standard Urethane (Ether Polyurethane)	Shore A90
	AZXMK	AZXMC	AZXMM	AZXMS	Standard Urethane (Ester Polyurethane)	Shore A70
	AZXLK	AZXLC	AZXLM	AZXLS	Standard Urethane (Ester Polyurethane)	Shore A50
	AZEXHK	AZEXHC	-	-	Abrasion Resistant Urethane	Shore A90	Dark Brown
	AZEXMK	AZEXMC	-	-	Abrasion Resistant Urethane	Shore A70	Dark Brown
	AZXHHK	AZXHHC	-	-	Heat Resistant Urethane	Shore A90	Brown
L Configurable	AZXS	AZCS	AZCS-M	AZCS-S	Standard Urethane (Ether Polyurethane)	Shore A95	Natural Color
	AZXH	AZCH	AZCH-M	AZCH-S	Standard Urethane (Ether Polyurethane)	Shore A90
	AZXM	AZCM	AZCM-M	AZCM-S	Standard Urethane (Ester Polyurethane)	Shore A70
	AZXL	AZCL	AZCL-M	AZCL-S	Standard Urethane (Ester Polyurethane)	Shore 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
AZXHHK20-20-M4

Part Number	Standard Unit Price	Minimum order quantity	Volume Discount	Standard Shipping Days ?	RoHS	Detailed Material	Hardness (shore, asker)	O.D. D (Ø)	Length L (mm)	Applicable Screw Size [M]	Collar Material	Collar Surface Treatment	H1 (mm)
	6.12 €	1	Available	10 Days	10	Heat Resistant Urethane	Shore A90	20	20	4	No Collar	-	-

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

Technical Drawing - Polyurethane Rubber Washers

Open the technical drawing in the new window

Specification Tables - Polyurethane Rubber Washers

■L Selectable

Part Number									Selection							M	Urethane only H₁	With Collar		Unit Price
Part Number									Selection									H₂	Collar No.	No Collar			With Collar
Type								D	L											Urethane only			Black Oxide			Electroless Nickel Plating	EN 1.4301 Equiv.
																				Standard Urethane	Abrasion Resistant	Heat Resistant	Standard Urethane	Abrasion Resistant	Heat Resistant	Standard Urethane	Standard Urethane
																				AZX□K	AZEX□K	AZXHHK	AZX□C	AZEX□C	AZXHHC	AZX□M	AZX□S
								12	12							M3	5	-					-	-	-	-	-
								15	12	15						M3		5	3
No Collar	With Collar	With Collar	With Collar					15		15	20					M4		5	4
Urethane only	Black Oxide	Electroless Nickel Plating	EN 1.4301 Equiv.					20			20	25				M4	7	7	4A
Urethane only	Black Oxide	Electroless Nickel Plating	EN 1.4301 Equiv.					20			20	25				M5	7	7	5
AZXSK	AZXSC	AZXSM	AZXSS	(	Standard	Shore A95	)	25			20	25				M6	8	8	6
AZXHK	AZXHC	AZXHM	AZXHS	(	Standard	Shore A90	)	25			20	25				M8	8	6	8A
AZXMK	AZXMC	AZXMM	AZXMS	(	Standard	Shore A70	)	30			20	25	30			M6	10	8	6
AZXLK	AZXLC	AZXLM	AZXLS	(	Standard	Shore A50	)	30				25	30	40		M8	10	8	8
AZEXHK	AZEXHC			(	Abrasion Resistant	Shore A90	)	40					30	40		M10	12	10	10
AZEXMK	AZEXMC			(	Abrasion Resistant	Shore A70	)	40					30	40	50	M12	12		12
AZXHHK	AZXHHC			(	Heat Resistant	Shore A90	)	50					30	40		M10	15		10
								50						40	50	M12			12
								60					30	40		M10			10
								60						40	50	M12			12

■ L Configurable

Part Number

L (1mm Increment)

M Selection

H₁
1mm Increment

H₂ Selectable

Type

Urethane only

With Collar

15~80

25~80

M3 M4

5≤H1

5(M3)7(M4)

No Collar

With Collar

M4 M5

7(M4 M5)

Urethane
only

Black
Oxide

Electroless
Nickel Plating

EN 1.4301
Equiv.

M6
M8

8(M6 M8)

AZXS

AZCS

AZCS-M

AZCS-S

(

Standard

Shore A95

)

25~150

30~150

M10
M12

10(M10 M12)

AZXH

AZCH

AZCH-M

AZCH-S

(

Standard

Shore A90

)

AZXM

AZCM

AZCM-M

AZCM-S

(

Standard

Shore A70

)

AZXL

AZCL

AZCL-M

AZCL-S

(

Standard

Shore A50

)

25~200

40~200

M12
M16

10(M12)
15(M16)

100

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Basic information

Shape	Counterbored	Material	Urethane

This page is Polyurethane rubber bumper / with countersunk hole, part number AZXHHK20-20-M4.
You can find the detail information about specifications and dimensions on part number AZXHHK20-20-M4.

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Basic Attributes

Collar Surface Treatment
- Black Oxide
- Electroless Nickel Plating
- Not Provided
Clear
H1(mm)
Clear
Type
- AZCH
- AZCH-M
- AZCH-S
- AZCL
- AZCL-M
- AZCL-S
- AZCM
- AZCM-M
- AZCM-S
- AZCS
- AZCS-M
- AZCS-S
- AZEXHC
- AZEXHK
- AZEXMC
- AZEXMK
- AZXH
- AZXHC
- AZXHHC
- AZXHHK
- AZXHK
- AZXHM
- AZXHS
- AZXL
- AZXLC
- AZXLK
- AZXLM
- AZXLS
- AZXM
- AZXMC
- AZXMK
- AZXMM
- AZXMS
- AZXS
- AZXSC
- AZXSK
- AZXSM
- AZXSS
Clear
Detailed Material
- Standard Urethane
  - Ester Polyurethane
  - Ether Polyurethane
- Heat Resistant Urethane
- Abrasion Resistant Urethane
Clear
Hardness (shore, asker)
Shore A50

Shore A70

Shore A90

Shore A95
Clear
O.D. D(Ø)
12

15

20

25

30

40

50

60

80

100
Clear
Length L(mm)
12

15

20

25

30

40

50
Clear
Applicable Screw Size [M]
3

4

5

6

8

10

12

16
Clear
Collar Material
- EN 1.1191 Equiv.
- EN 1.4301 Equiv.
- No Collar
Clear
Filter by CAD data type
- 2D
- 3D
Clear

Optional Attributes

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

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.

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Variation of this product

Part Number
AZEXHC15-20-M4
AZEXHC20-20-M4
AZEXHC20-20-M5
AZXHHK20-20-M5
AZXHHK20-25-M4
AZXHHK20-25-M5

Standard Unit Price	Minimum order quantity	Volume Discount	Standard Shipping Days ?	RoHS	Detailed 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	10	Abrasion Resistant Urethane	Shore A90	15	20	4	EN 1.1191 Equiv.	Black Oxide	-
6.96 €	1	Available	10 Days	10	Abrasion Resistant Urethane	Shore A90	20	20	4	EN 1.1191 Equiv.	Black Oxide	-
6.96 €	1	Available	Same day Stock	10	Abrasion Resistant Urethane	Shore A90	20	20	5	EN 1.1191 Equiv.	Black Oxide	-
6.12 €	1	Available	10 Days	10	Heat Resistant Urethane	Shore A90	20	20	5	No Collar	-	-
6.12 €	1	Available	10 Days	10	Heat Resistant Urethane	Shore A90	20	25	4	No Collar	-	-
6.12 €	1	Available	10 Days	10	Heat Resistant Urethane	Shore A90	20	25	5	No Collar	-	-