Polyurethane rubber bumper / fully configurable (Part Numbers - CAD Download)

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

Technical Drawing - Polyurethane Rubber Washers

Urethane Bumpers/Fully Configurable:Related Image

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

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

Standard / Precision	Through Hole Type	No Hole Type	Material	Hardness	Color (Photo No.)
Standard Grade	AXFS	CXFS	Standard Urethane (Ether Polyurethane)	Shore A95	Natural Color / Black
	AXFH	CXFH	Standard Urethane (Ether Polyurethane)	Shore A90
	AXFM	CXFM	Standard Urethane (Ester Polyurethane)	Shore A70
	AXFL	CXFL		Shore A50
	AXFY	CXFY		Shore A30
	AXFHE	CXFHE	Antistatic Polyurethane	Shore A90	Gray
	AXFME	CXFME		Shore A70
	AXFLE	CXFLE		Shore A50
	AXFAN	CXFAN	Low Rebound Urethane	Shore A70	Gray
	AXHHF	CXHHF	Heat Resistant Urethane	Shore A90	Brown
	VULHF	CXVHF	Super Abrasion Resistant Urethane Vulkollan^®	Shore A92	Beige
	VULMF	CXVMF	Super Abrasion Resistant Urethane Vulkollan^®	Shore A68	Beige
	AEXHF	CXEHF	Abrasion Resistant Urethane	Shore A90	Dark Brown
	AEXMF	CXEMF	Abrasion Resistant Urethane	Shore A70	Dark Brown
	AXCES	CXCES	Ceramic Urethane	Shore A95	Gray
	AXCEH	CXCEH		Shore A90
	AXCEM	CXCEM		Shore A70
Precision Grade	AAFS	CAFS	Standard Urethane (Ether Polyurethane)	Shore A95	Natural Color / Black
	AAFH	CAFH	Standard Urethane (Ether Polyurethane)	Shore A90
	AAFM	CAFM	Standard Urethane (Ester Polyurethane)	Shore A70

■Characteristic Values of Antistatic Urethane

Specific Volume Resistivity	2.1x10⁸Ω • cm
Surface Resistivity	4.0x10⁹Ω

(Conditions: Temperature 30°C Humidity 60%)
All other properties are equal to those of urethane of the same hardness.

■Compression Set of Low Rebound Urethane

Low Rebound Urethane	1%
Urethane (Shore A70)	25%

* The above data is measured at room temperature 23°C.
* 70°Cx24H 25% Compression

Further specifications can be found under the tab More information.

Composition of a Product Code - Polyurethane Rubber Washers

Part Number	-	D	-	L	-	V	-	C
AXFME CXFM	- -	D35 D39	- -	L51 L42	-	V23	-	B

Alterations - Polyurethane Rubber Washers

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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Data to be displayed: 30; 45; 60

Part Number
AXHHF-D[6-100/1]-L[10-300/1]-V[2-86/1]
CXHHF-D[6-100/1]-L[10-300/1]

Part Number	Minimum order quantity	Volume Discount	Standard Shipping Days ?	RoHS	Detailed Material	Hardness (shore, asker)	Precision	Specifications	Color Selection	D (mm)	L (mm)	V (mm)
	1		9 Days	10	Heat Resistant Urethane	Shore A90	-	Through Hole Type	-	6 ～ 100	10 ～ 300	2 ～ 86
	1		9 Days	10	Heat Resistant Urethane	Shore A90	-	No Hole Type	-	6 ～ 100	10 ～ 300	-

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

Technical Drawing - Polyurethane Rubber Washers

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Specification Tables - Polyurethane Rubber Washers

Part Number						1mm Increment			Selection
Part Number						D	L	V (For Through Hole Type Only)	C (For Standard Urethane Only)
Standard Grade						6~100 For Vulkollan^® Only 6~45	10~300 For Vulkollan^® Only 10~50	2~86 When D≥16, V≥4 When D≥31, V≥6	N (Natural Color) B (Black)
Through Hole Type	No Hole Type
AXFS	CXFS	(	Standard Urethane	Shore A95	)
AXFH	CXFH	(	Standard Urethane	Shore A90	)
AXFM	CXFM	(	Standard Urethane	Shore A70	)
AXFL	CXFL	(	Standard Urethane	Shore A50	)
AXFY	CXFY	(	Standard Urethane	Shore A30	)
AXFHE	CXFHE	(	Antistatic Polyurethane	Shore A90	)
AXFME	CXFME	(	Antistatic Polyurethane	Shore A70	)
AXFLE	CXFLE	(	Antistatic Polyurethane	Shore A50	)
AXFAN	CXFAN	(	Low Rebound Urethane	Shore A70	)
AXHHF	CXHHF	(	Heat Resistant Urethane	Shore A90	)
*VULHF	*CXVHF	(	Vulkollan^®	Shore A92	)
*VULMF	*CXVMF	(	Vulkollan^®	Shore A68	)
AEXHF	CXEHF	(	Abrasion Resistant Urethane	Shore A90	)
AEXMF	CXEMF	(	Abrasion Resistant Urethane	Shore A70	)
AXCES	CXCES	(	Ceramic Urethane	Shore A95	)
AXCEH	CXCEH	(	Ceramic Urethane	Shore A90	)
AXCEM	CXCEM	(	Ceramic Urethane	Shore A70	)
Precision Grade
Through Hole Type	No Hole Type
AAFS	CAFS	(	Standard Urethane	Shore A95	)
AAFH	CAFH	(	Standard Urethane	Shore A90	)
AAFM	CAFM	(	Standard Urethane	Shore A70	)

The thickness of Through Hole Type (D-V)/2 is restricted by L. Refer to the table (Thickness Condition) in the drawing. When V=2, L≤50.
When L≥201, V≥8
For Vulkollan^®, D dim. will be up to 45mm, and L dim. will be up to 50mm.

Alterations - Polyurethane Rubber Washers

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Basic information

Shape	Bumper (Thickness 10mm~)	Material	Urethane

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Basic Attributes

Hardness (shore, asker)
Shore A30

Shore A50

Shore A68

Shore A70

Shore A90

Shore A92

Shore A95
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Precision
- Precision Grade
- Standard Grade
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Specifications
- No Hole Type
- Through Hole Type
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Color Selection
- Black [B]
- Natural Color [N]
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D(mm)
[6-100/1mm Unit(s)]
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L(mm)
[10-300/1mm Unit(s)]
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V(mm)
[2-86/1mm Unit(s)]
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Type
- AAFH
- AAFM
- AAFS
- AEXHF
- AEXMF
- AXCEH
- AXCEM
- AXCES
- AXFAN
- AXFH
- AXFHE
- AXFL
- AXFLE
- AXFM
- AXFME
- AXFS
- AXFY
- AXHHF
- CAFH
- CAFM
- CAFS
- CXCEH
- CXCEM
- CXCES
- CXEHF
- CXEMF
- CXFAN
- CXFH
- CXFHE
- CXFL
- CXFLE
- CXFM
- CXFME
- CXFS
- CXFY
- CXHHF
- CXVHF
- CXVMF
- VULHF
- VULMF
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Detailed Material
- Standard Urethane
  - Ester Polyurethane
  - Ether Polyurethane
- Heat Resistant Urethane
- Antistatic Urethane
- Abrasion Resistant Urethane
- Super Abrasion Resistant Vulkollan®
- Ceramic Urethane
- Low Rebound Urethane
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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.