Thermally insulating washers / sleeves; standard version (Part Numbers - CAD Download)

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Back to the Category Plastic Washers/Plastic Sleeves

Technical Drawing - Plastic Washers

Thermal Insulation Washers - Standard:Related Image

[ ! ]Chamfering: C0.5 or less
[ ! ]For EPOW and EPOC, when D ≥ 30, the D dimension tolerance is 0/-0.3.
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) - Plastic Washers

Washer	Collar	Collar with Flange	Material
EPOW	EPOC	EPOB	Epoxy Glass
PTW	PTC	PTB	Fluororesin (Polytetrafluoroethylene)
PKW	PKC	PKB	PEEK

Material Properties >> P.141

Further specifications can be found under the tab More information.

Composition of a Product Code - Plastic Washers

Part Number	-	V
PTW10	-	3

Part Number	-	D	-	L
EPOC16	-	25	-	55

Part Number	-	L
PKB10	-	10

Part Number:

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Part Number
PKB3-8
PKB3-10
PKB3-15
PKB3-20
PKB4-8
PKB4-10
PKB4-15
PKB4-20
PKB5-8
PKB5-10
PKB5-15
PKB5-20
PKB6-8
PKB6-10
PKB6-15
PKB6-20
PKB8-10
PKB8-15
PKB8-20
PKB8-25
PKB10-10
PKB10-15
PKB10-20
PKB10-25
PKB12-15
PKB12-20
PKB12-25
PKB16-15
PKB16-20
PKB16-25
PKC2-[5,6,8,10]-[5-30/1]
PKC3-[5,6,8,10,12,14]-[5-50/1]
PKC4-[6,8,10,12,14,15]-[5-50/1]
PKC5-[8,10,12,14,15,16,20]-[5-50/1]
PKC6-[8,10,12,14,15,16,20,25]-[5-50/1]
PKC8-[12,14,15,16,20,25,30]-[5-50/1]
PKC10-[14,15,16,20,25,30]-[5-50/1]
PKC12-[20,25,30]-[5-100/1]
PKC16-[20,25,30]-[5-100/1]
PKC20-[25,30]-[5-100/1]
PKW10-3
PKW10-4
PKW10-5
PKW10-6
PKW12-4
PKW12-5
PKW12-6
PKW12-8
PKW14-4
PKW14-5
PKW14-6
PKW14-8
PKW14-10
PKW15-4
PKW15-5
PKW15-6
PKW15-8
PKW15-10
PKW16-5
PKW16-6

Standard Unit Price	Minimum order quantity	Volume Discount	Standard Shipping Days ?	RoHS	Shape	Outer Diameter (mm)	Internal Diameter (mm)	Thickness and length	Material	Material Detail	Dimension Selecting Method
23.80 €	1	Available	5 Days	10	Shouldered	6	3	8	PEEK	PEEK	-
23.80 €	1	Available	5 Days	10	Shouldered	6	3	10	PEEK	PEEK	-
23.80 €	1	Available	5 Days	10	Shouldered	6	3	15	PEEK	PEEK	-
23.80 €	1	Available	5 Days	10	Shouldered	6	3	20	PEEK	PEEK	-
28.80 €	1	Available	5 Days	10	Shouldered	8	4	8	PEEK	PEEK	-
28.80 €	1	Available	5 Days	10	Shouldered	8	4	10	PEEK	PEEK	-
28.80 €	1	Available	5 Days	10	Shouldered	8	4	15	PEEK	PEEK	-
28.80 €	1	Available	5 Days	10	Shouldered	8	4	20	PEEK	PEEK	-
33.81 €	1	Available	5 Days	10	Shouldered	10	5	8	PEEK	PEEK	-
33.81 € 11.83 €	1	Available	Same day Stock	10	Shouldered	10	5	10	PEEK	PEEK	-
33.81 €	1	Available	5 Days	10	Shouldered	10	5	15	PEEK	PEEK	-
33.81 €	1	Available	5 Days	10	Shouldered	10	5	20	PEEK	PEEK	-
43.84 €	1	Available	Same day Stock	10	Shouldered	10	6	8	PEEK	PEEK	-
43.84 €	1	Available	5 Days	10	Shouldered	10	6	10	PEEK	PEEK	-
43.84 €	1	Available	5 Days	10	Shouldered	10	6	15	PEEK	PEEK	-
43.84 €	1	Available	5 Days	10	Shouldered	10	6	20	PEEK	PEEK	-
60.12 €	1	Available	5 Days	10	Shouldered	12	8	10	PEEK	PEEK	-
60.12 €	1	Available	5 Days	10	Shouldered	12	8	15	PEEK	PEEK	-
60.12 €	1	Available	5 Days	10	Shouldered	12	8	20	PEEK	PEEK	-
60.12 €	1	Available	5 Days	10	Shouldered	12	8	25	PEEK	PEEK	-
75.15 €	1	Available	5 Days	10	Shouldered	14	10	10	PEEK	PEEK	-
75.15 €	1	Available	5 Days	10	Shouldered	14	10	15	PEEK	PEEK	-
75.15 €	1	Available	5 Days	10	Shouldered	14	10	20	PEEK	PEEK	-
75.15 €	1	Available	5 Days	10	Shouldered	14	10	25	PEEK	PEEK	-
82.68 €	1	Available	5 Days	10	Shouldered	20	12	15	PEEK	PEEK	-
82.68 €	1	Available	5 Days	10	Shouldered	20	12	20	PEEK	PEEK	-
82.68 €	1	Available	5 Days	10	Shouldered	20	12	25	PEEK	PEEK	-
115.25 €	1	Available	5 Days	10	Shouldered	20	16	15	PEEK	PEEK	-
115.25 €	1	Available	5 Days	10	Shouldered	20	16	20	PEEK	PEEK	-
115.25 €	1	Available	5 Days	10	Shouldered	20	16	25	PEEK	PEEK	-
-	1		6 Days	10	Standard	5 ～ 10	2	5 ～ 30	PEEK	PEEK	Dimension Configurable Type
-	1		6 Days	10	Standard	5 ～ 14	3	5 ～ 50	PEEK	PEEK	Dimension Configurable Type
-	1		6 Days	10	Standard	6 ～ 15	4	5 ～ 50	PEEK	PEEK	Dimension Configurable Type
-	1		6 Days	10	Standard	8 ～ 20	5	5 ～ 50	PEEK	PEEK	Dimension Configurable Type
-	1		6 Days	10	Standard	8 ～ 25	6	5 ～ 50	PEEK	PEEK	Dimension Configurable Type
-	1		6 Days	10	Standard	12 ～ 30	8	5 ～ 50	PEEK	PEEK	Dimension Configurable Type
-	1		6 Days	10	Standard	14 ～ 30	10	5 ～ 50	PEEK	PEEK	Dimension Configurable Type
-	1		6 Days	10	Standard	20 ～ 30	12	5 ～ 100	PEEK	PEEK	Dimension Configurable Type
-	1		6 Days	10	Standard	20 ～ 30	16	5 ～ 100	PEEK	PEEK	Dimension Configurable Type
-	1		6 Days	10	Standard	25 ～ 30	20	5 ～ 100	PEEK	PEEK	Dimension Configurable Type
6.26 €	1	Available	5 Days	10	Standard	10	3	-	PEEK	PEEK	-
6.26 €	1	Available	5 Days	10	Standard	10	4	-	PEEK	PEEK	-
6.26 €	1	Available	5 Days	10	Standard	10	5	-	PEEK	PEEK	-
6.26 €	1	Available	5 Days	10	Standard	10	6	-	PEEK	PEEK	-
6.96 €	1	Available	5 Days	10	Standard	12	4	-	PEEK	PEEK	-
6.96 €	1	Available	5 Days	10	Standard	12	5	-	PEEK	PEEK	-
6.96 €	1	Available	5 Days	10	Standard	12	6	-	PEEK	PEEK	-
6.96 €	1	Available	5 Days	10	Standard	12	8	-	PEEK	PEEK	-
8.35 €	1	Available	5 Days	10	Standard	14	4	-	PEEK	PEEK	-
8.35 € 3.26 €	1	Available	Same day Stock	10	Standard	14	5	-	PEEK	PEEK	-
8.35 €	1	Available	5 Days	10	Standard	14	6	-	PEEK	PEEK	-
8.35 €	1	Available	5 Days	10	Standard	14	8	-	PEEK	PEEK	-
8.35 €	1	Available	5 Days	10	Standard	14	10	-	PEEK	PEEK	-
8.49 €	1	Available	5 Days	10	Standard	15	4	-	PEEK	PEEK	-
8.49 €	1	Available	5 Days	10	Standard	15	5	-	PEEK	PEEK	-
8.49 €	1	Available	5 Days	10	Standard	15	6	-	PEEK	PEEK	-
8.49 €	1	Available	5 Days	10	Standard	15	8	-	PEEK	PEEK	-
8.49 €	1	Available	5 Days	10	Standard	15	10	-	PEEK	PEEK	-
8.78 €	1	Available	5 Days	10	Standard	16	5	-	PEEK	PEEK	-
8.78 €	1	Available	5 Days	10	Standard	16	6	-	PEEK	PEEK	-

Back to the Category Plastic Washers/Plastic Sleeves

Technical Drawing - Plastic Washers

[ ! ]Chamfering: C0.5 or less
[ ! ]For EPOW and EPOC, when D ≥ 30, the D dimension tolerance is 0/-0.3.
Open the technical drawing in the new window

Specification Tables - Plastic Washers

■Washer

Part Number		V Selection								T	Unit Price
Type	D	V Selection								T	EPOW	PTW	PKW
EPOW PTW PKW	10	3	4	5	6					3
	12		4	5	6	8
	14		4	5	6	8	10
	15		4	5	6	8	10
	16			5	6	8	10
	20			5	6	8	10	12
	25				6	8	10	12
	30						10	12	16
	35							12	16	5
	40								16	5

■Collar

Part Number		D Selection											L 1mm Increment
Type	V	D Selection											L 1mm Increment
EPOC PTC PKC	2	5	6	8	10								5~30
	3	5	6	8	10	12	14						5~50
	4		6	8	10	12	14	15
	5			8	10	12	14	15	16	20
	6			8	10	12	14	15	16	20	25
	8					12	14	15	16	20	25	30
	10						14	15	16	20	25	30
	12									20	25	30	5~100
	16									20	25	30
	20										25	30

Machining Conditions L≤Dx3, only for PTC

Part Number		Unit Price
Part Number		EPOC				PTC				PKC
Type	V	L5~25	L26~50	L51~75	L76~100	L5~25	L26~50	L51~75	L76~100	L5~25	L26~50	L51~75	L76~100
EPOC PTC PKC	2			-	-			-	-			-	-
	3
	4
	5
	6
	8
	10
	12
	16
	20

■Collar with Flange

Part Number		L Selection					H	D	T	Unit Price
Type	V									EPOB	PTB	PKB
EPOB PTB PKB	3	8	10	15	20		10	6	5
	4						12	8
	5						15	10
	6						20	10
	8		10	15	20	25	25	12
	10						30	14
	12			15	20	25	35	20
	16						40	20

General Information - Plastic Washers

Selection details of plastic washers/plastic sleeves

- Material: MC-nylon, polyacetal (POM), Bakelit, epoxy glass, polyether ether ketone (PEEK), fluoroplastic, polyslider, ceramic, polycarbonate (PC), polyamide (PA), polytetrafluoroethylene (PTFE), Duracon, Duranex, ABS, glass (lime-sodium glass)

- Outer diameter: 2 to 100 mm

- Inner diameter: 1 to 90 mm

- Thickness, length: 0.1 to 500 mm

- Forms: cylindrical, with collar, with pins, with countersunk bore, with guide, square washers

Description/Basics of plastic washers/plastic sleeves

Sleeves in general, are among the most commonly used machine elements to create a distance between two components. Plastic sleeves and ceramic sleeves offer added value compared to conventional metal collars.

Plastic sleeves and plastic sleeves with a collar have some advantages over their metallic counterparts. In addition to creating and maintaining a distance, they also have an insulating effect. The insulation effect refers to thermal insulation or electrical insulation depending on the material. In addition, their similarity to natural materials is greater than with metal sleeves. As a result, plastic washers and plastic sleeves (depending on the material) expand to the same extent under the influence of heat, such as wood or similar soft materials.

Plastic washers, as well as washers, enable an increase in surface compression. However, their resistance to pressure loads is lower depending on the material selected than that of a similarly large metal washer. For this purpose, the advantage of thermal and electrical insulation effects exists in plastic washers.

MISUMI also offers plastic washers and plastic sleeves with gliding properties. For example, washers and sleeves made of fluoroplastics are suitable for reducing friction resistances in hinge constructions. It should be noted that plastic sleeves do not replace plain bearings.

Polyether ether ketone (PEEK) has excellent thermal insulating properties. Depending on the strength and material composition, PEEK has a melting point of up to 300°C. It is therefore suitable, among other things, for insulating heating and cooling lines, for example. Due to the quality of the surface, the material has particularly good adhesive properties.

Polyacetal, also called POM, is characterized by its very good machinability and excellent mechanical properties. Polyacetal (POM) products are widely used in various branches of mechanical engineering.

At MISUMI you will find washers and sleeves made of various variants of MC Nylon. In addition to the standard version, a conductive and antistatic type is also offered. Thus, MC Nylon can be used in a wide variety of applications.

The different versions and shapes of the plastic washers and plastic sleeves allow utilising them in a wide variety of applications. Thus, plastic washers can be used, for example, as bearing mountings up to the assembly of printed circuit boards.

Application Examples

Plastic sleeve as thermally insulating spacer sleeve
(1) Plastic sleeves, (2) Cylindrical plastic sleeve, (3) Plastic washer, (4) Hexagon socket screws, (5) Washer, (6) Hexagon nut

Plastic sleeve as bearing ring
(1) Plastic sleeve with guide, (2) Rotary shaft, (3) Timing pulley, (4) Ball bearing (5) Bearing with housing, (6) Drive wheel

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Basic Attributes

Shape
- Standard
- Shouldered
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Outer Diameter(mm)
5

6

8

10

12

14

15

16

20

25

30

35

40
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Internal Diameter(mm)
2

3

4

5

6

8

10

12

16

20
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Thickness and length
8

10

15

20

25
[5-100/1]
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Material Detail
Epoxy Glass

Fluororesin

PEEK
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Dimension Selecting Method
- Dimension Configurable Type
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Type
- EPOB
- EPOC
- EPOW
- PKB
- PKC
- PKW
- PTB
- PTC
- PTW
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Material
- Epoxy Glass
- PEEK
- Fluororesin
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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:
Do ceramic washers have the same strength as ceramic sleeves?: Answer:
Due to a radial lamination of the ceramic material, ceramic sleeves have a lower compressive strength than ceramic washers (vertically laminated). Detailed information and comparison values can be found here.
Question:
What is the thermal expansion of plastic sleeves and plastic washers?: Answer:
Plastic sleeves and plastic washers react sensitively to fluctuations in ambient temperature. The length of synthetic resin sleeves varies depending in a ratio of up to 1°C = 0.1 mm depending on the temperature . Details on the thermal expansion of other materials available at MISUMI can be found in this PDF.
Question:
Do you have washers made of a material that provide electric insulation?: Answer:
Most plastics have an electrically insulating effect. The level of insulation differs depending on the material. Polycarbonate has a very good electrically insulating effect. In addition to its good electrical insulating effect, it is also superior to most conventional plastics in terms of mechanical aspects.
Question:
Which material is suitable for both low and high temperatures?: Answer:
Polyether ether ketone (PEEK) and polytetrafluoroethylene (PTFE) have an operating temperature of approx. -50°C (PEEK), respectively -40°C (PTFE) and up to +250°C.