Felt dampers (Part Numbers - CAD Download)

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MISUMI

[Features] These are felt buffers suitable for applying oil, etc. to workpieces.

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Technical Information

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

Technical Drawing - Polyurethane Rubber Washers

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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

Type	No Adhesive	Adhesive	Material	Density (g/cm³)	Color	Allowable Temperature
Washer	WFEP	WFEPA	Polyester Felt	0.2	White	0 ~ 120°C
Washer	WFEH	WFEHA	Polyamide Felt	0.2		-50 ~ 250°C
Bumper	BFEL	BFELA	Polyester Felt	Refer to the following		-10 ~ 60°C

Allowable temperature for adhesive is 0 ~ 80°C.

Further specifications can be found under the tab More information.

Composition of a Product Code - Polyurethane Rubber Washers

Part Number	-	V	-	T
WFEP10	-	4	-	3

Part Number	-	L	-	V
BFEL20	-	10	-	10

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

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Data to be displayed: 30; 45; 60

Part Number
WFEP8-0-3
WFEP8-3-3
WFEP10-0-3
WFEP10-4-3
WFEP12-0-3
WFEP12-4-3
WFEP12-6-3
WFEP15-0-3
WFEP15-4-3
WFEP15-6-3
WFEP15-8-3
WFEP20-0-3
WFEP20-6-3
WFEP20-8-3
WFEP20-10-3
WFEP20-12-3
WFEP25-0-3
WFEP25-6-3
WFEP25-8-3
WFEP25-10-3
WFEP25-12-3
WFEP25-16-3
WFEP25-20-3
WFEP30-0-3
WFEP30-6-3
WFEP30-8-3
WFEP30-10-3
WFEP30-12-3
WFEP30-16-3
WFEP30-20-3
WFEPA8-0-3
WFEPA8-3-3
WFEPA10-0-3
WFEPA10-4-3
WFEPA12-0-3
WFEPA12-4-3
WFEPA12-6-3
WFEPA15-0-3
WFEPA15-4-3
WFEPA15-6-3
WFEPA15-8-3
WFEPA20-0-3
WFEPA20-6-3
WFEPA20-8-3
WFEPA20-10-3
WFEPA20-12-3
WFEPA25-0-3
WFEPA25-6-3
WFEPA25-8-3
WFEPA25-10-3
WFEPA25-12-3
WFEPA25-16-3
WFEPA25-20-3
WFEPA30-0-3
WFEPA30-6-3
WFEPA30-8-3
WFEPA30-10-3
WFEPA30-12-3
WFEPA30-16-3
WFEPA30-20-3

Standard Unit Price	Minimum order quantity	Volume Discount	Standard Shipping Days ?	RoHS	Shape	Detailed Material	O.D. D (Ø)	I.D. V (Ø)	Thickness T (mm)	Length L (mm)	With or w/o Seals
3.79 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	8	0	3	-	No Seal
3.79 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	8	3	3	-	No Seal
3.92 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	10	0	3	-	No Seal
3.92 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	10	4	3	-	No Seal
4.05 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	12	0	3	-	No Seal
4.05 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	12	4	3	-	No Seal
4.05 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	12	6	3	-	No Seal
4.18 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	15	0	3	-	No Seal
4.18 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	15	4	3	-	No Seal
4.18 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	15	6	3	-	No Seal
4.18 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	15	8	3	-	No Seal
4.30 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	20	0	3	-	No Seal
4.30 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	20	6	3	-	No Seal
4.30 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	20	8	3	-	No Seal
4.30 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	20	10	3	-	No Seal
4.30 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	20	12	3	-	No Seal
4.43 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	25	0	3	-	No Seal
4.43 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	25	6	3	-	No Seal
4.43 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	25	8	3	-	No Seal
4.43 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	25	10	3	-	No Seal
4.43 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	25	12	3	-	No Seal
4.43 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	25	16	3	-	No Seal
4.43 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	25	20	3	-	No Seal
4.56 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	30	0	3	-	No Seal
4.56 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	30	6	3	-	No Seal
4.56 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	30	8	3	-	No Seal
4.56 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	30	10	3	-	No Seal
4.56 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	30	12	3	-	No Seal
4.56 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	30	16	3	-	No Seal
4.56 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	30	20	3	-	No Seal
4.43 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	8	0	3	-	With Seal
4.43 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	8	3	3	-	With Seal
4.56 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	10	0	3	-	With Seal
4.56 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	10	4	3	-	With Seal
4.69 € 1.41 €	1	Available	Same day Stock	10	Washers (Thickness 1mm~10mm)	Polyester Felt	12	0	4	-	With Seal
4.69 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	12	4	4	-	With Seal
4.69 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	12	6	4	-	With Seal
4.81 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	15	0	4	-	With Seal
4.81 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	15	4	4	-	With Seal
4.81 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	15	6	4	-	With Seal
4.81 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	15	8	4	-	With Seal
4.94 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	20	0	3	-	With Seal
4.94 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	20	6	4	-	With Seal
4.94 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	20	8	4	-	With Seal
4.94 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	20	10	4	-	With Seal
4.94 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	20	12	4	-	With Seal
5.06 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	25	0	4	-	With Seal
5.06 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	25	6	4	-	With Seal
5.06 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	25	8	4	-	With Seal
5.06 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	25	10	4	-	With Seal
5.06 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	25	12	4	-	With Seal
5.06 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	25	16	4	-	With Seal
5.06 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	25	20	4	-	With Seal
5.19 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	30	0	4	-	With Seal
5.19 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	30	6	4	-	With Seal
5.19 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	30	8	4	-	With Seal
5.19 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	30	10	4	-	With Seal
5.19 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	30	12	4	-	With Seal
5.19 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	30	16	4	-	With Seal
5.19 €	1	Available	7 Days	10	Washers (Thickness 1mm~10mm)	Polyester Felt	30	20	4	-	With Seal

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

Technical Drawing - Polyurethane Rubber Washers

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Specification Tables - Polyurethane Rubber Washers

■Washer Type

Part Number		V Selection									T Selection	Unit Price
Type	D	V Selection									T Selection	WFEP	WFEPA	WFEH	WFEHA
No Adhesive WFEP WFEH Adhesive WFEPA WFEHA (x1.1) ( ) Material Multiplier	8	0	3								3 (WFEP ) WFEPA 4 (WFEH ) WFEHA
	10	0		4
	12	0		4	6
	15	0		4	6	8
	20	0			6	8	10	12
	25	0			6	8	10	12	16	20
	30	0			6	8	10	12	16	20

* T dimension for Polyester Felt is 3mm, for Polyamide Felt is 4mm.

■Bumper Type (L dimensions indicate the length of felt base materials. The values are for reference only.)

Part Number		L	V	Unit Price
Type	D	Selection	V	L10	L20	L30
No Adhesive BFEL Adhesive BFELA (x1.1) ( ) Material Multiplier	20	10 20 30	0
	20	10 20 30	10
	30	10 20 30	0
	30	10 20 30	10

This product, especially L dimension 20 and 30, may be deformed during delivery.

More Information
Characteristics of Felt
1.Excellent in weather resistance. (Affected by alkaline solution.)
2.Excellent in oil absorbability. It has the property of soaking up oil by capillary action.
3.Excellent in oil absorbability. It can absorb up to approx. 80% of its total volume.
4.Has good polishing characteristics. Provides high polishing characteristics as it precipitates foreign materials within its tissue.

■Features of Materials

Material	Details of Material	Application Example
Polyester Felt (Sheet)	Felt made of 100% polyester Soft with Density of 0.18 ~ 0.2. General-purpose Product.	Applicable to general purpose use as oil / water absorption, cushioning materials, etc.
Polyester Felt (with Binder)	PET : PET Binder (Bonding Material) =9:1 Fibers bonded together by the binder provides high morphological stability.	Protection material and bumper for portions exposed to high impact.
Polyamide Felt	Felt made of 100% polyamide Excellent heat/flame resistances. UL Std. Test V-0 Equiv.	Heat Resistant / Flame Retardant Bumpers
Sheep Wool Felt (Rayon, PET)	Felt made of 60 % sheep wool and 40% PET. JIS-R25W2 Standard Product. Excellent in oil/water retention ability.	Cushion Material, Liquid Application (Oiling), Spacer
Sheep Wool Felt	Felt made of 100% sheep wool Gives less damage to mating materials.	For Buffing
Polyester Felt (Bumper Type)	Density may vary depending on L dimensions.	Oil Application to Workpieces

*The application examples above are references not guaranteed.

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Material	Felt

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Basic Attributes

Detailed Material
- Polyester Felt
- Polyamide Felt
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O.D. D(Ø)
8

10

12

15

20

25

30
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I.D. V(Ø)
0

3

4

6

8

10

12

16

20
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Thickness T(mm)
3

4
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Length L(mm)
10

20

30
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With or w/o Seals
- No Seal
- With Seal
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Type
- BFEL
- BFELA
- WFEH
- WFEHA
- WFEP
- WFEPA
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Shape
- Washers (Thickness 1mm~10mm)
- Bumper (Thickness 10mm~)
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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.