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Plastic washers / rectangular / POM / MC Nylon

Plastic washers / rectangular / POM / MC Nylon
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Back to the Category Plastic Washers/Plastic Sleeves

Technical Drawing - Plastic Washers

Square Resin Washers/POM/MC Nylon: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) - Plastic Washers

One Through HoleTwo Through HolesTwo Countersunk HolesTwo Counterbored Holes MaterialColor
WSRJJWSRRJWSRPJWSRZJPolyacetalWhite
WSRJMWSRRMWSRPMWSRZMMC Nylon
Standard Grade		Blue
Material Properties >> P.141

Further specifications can be found under the tab More information.

Composition of a Product Code - Plastic Washers

Part Number-B-P
WSRJJ10-25-12.5

Alterations - Plastic Washers

Square Resin Washers/POM/MC Nylon:Related Image

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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  1. 1
Part Number
WSRJJ6-[6-20/1]-[3-10/0.5]
WSRJJ8-[8-25/1]-[4-12.5/0.5]
WSRJJ10-[10-30/1]-[5-15/0.5]
WSRJJ12-[12-35/1]-[6-17.5/0.5]
WSRJJ15-[15-45/1]-[7.5-22.5/0.5]
WSRJJ20-[20-60/1]-[10-30/0.5]
WSRJJ25-[25-75/1]-[12.5-37.5/0.5]
WSRJM6-[6-20/1]-[3-10/0.5]
WSRJM8-[8-25/1]-[4-12.5/0.5]
WSRJM10-[10-30/1]-[5-15/0.5]
WSRJM12-[12-35/1]-[6-17.5/0.5]
WSRJM15-[15-45/1]-[7.5-22.5/0.5]
WSRJM20-[20-60/1]-[10-30/0.5]
WSRJM25-[25-75/1]-[12.5-37.5/0.5]
WSRPJ10-[20-40/1]-[10-30/0.5]
WSRPJ12-[24-48/1]-[12-36/0.5]
WSRPJ15-[30-60/1]-[15-45/0.5]
WSRPJ20-[40-80/1]-[20-60/0.5]
WSRPJ25-[50-100/1]-[25-75/0.5]
WSRPM10-[20-40/1]-[10-30/0.5]
WSRPM12-[24-48/1]-[12-36/0.5]
WSRPM15-[30-60/1]-[15-45/0.5]
WSRPM20-[40-80/1]-[20-60/0.5]
WSRPM25-[50-100/1]-[25-75/0.5]
WSRRJ6-[12-24/1]-[6-18/0.5]
WSRRJ8-[16-32/1]-[8-24/0.5]
WSRRJ10-[20-40/1]-[10-30/0.5]
WSRRJ12-[24-48/1]-[12-36/0.5]
WSRRJ15-[30-60/1]-[15-45/0.5]
WSRRJ20-[40-80/1]-[20-60/0.5]
WSRRJ25-[50-100/1]-[25-75/0.5]
WSRRM6-[12-24/1]-[6-18/0.5]
WSRRM8-[16-32/1]-[8-24/0.5]
WSRRM10-[20-40/1]-[10-30/0.5]
WSRRM12-[24-48/1]-[12-36/0.5]
WSRRM15-[30-60/1]-[15-45/0.5]
WSRRM20-[40-80/1]-[20-60/0.5]
WSRRM25-[50-100/1]-[25-75/0.5]
WSRZJ10-[20-40/1]-[10-30/0.5]
WSRZJ12-[24-48/1]-[12-36/0.5]
WSRZJ15-[30-60/1]-[15-45/0.5]
WSRZJ20-[40-80/1]-[20-60/0.5]
WSRZJ25-[50-100/1]-[25-75/0.5]
WSRZM10-[20-40/1]-[10-30/0.5]
WSRZM12-[24-48/1]-[12-36/0.5]
WSRZM15-[30-60/1]-[15-45/0.5]
WSRZM20-[40-80/1]-[20-60/0.5]
WSRZM25-[50-100/1]-[25-75/0.5]
Part NumberMinimum order quantityVolume Discount
Standard
Shipping Days
?
RoHSMaterial Material Detail Hole Type Width A
(mm) 		B
(mm) 		P
(mm)
1 6 Days 10PolyacetalPolyacetalThrough Hole66 ～ 203 ～ 10
1 6 Days 10PolyacetalPolyacetalThrough Hole88 ～ 254 ～ 12.5
1 6 Days 10PolyacetalPolyacetalThrough Hole1010 ～ 305 ～ 15
1 6 Days 10PolyacetalPolyacetalThrough Hole1212 ～ 356 ～ 17.5
1 6 Days 10PolyacetalPolyacetalThrough Hole1515 ～ 457.5 ～ 22.5
1 6 Days 10PolyacetalPolyacetalThrough Hole2020 ～ 6010 ～ 30
1 6 Days 10PolyacetalPolyacetalThrough Hole2525 ～ 7512.5 ～ 37.5
1 6 Days 10MC NylonMC NylonThrough Hole66 ～ 203 ～ 10
1 6 Days 10MC NylonMC NylonThrough Hole88 ～ 254 ～ 12.5
1 6 Days 10MC NylonMC NylonThrough Hole1010 ～ 305 ～ 15
1 6 Days 10MC NylonMC NylonThrough Hole1212 ～ 356 ～ 17.5
1 6 Days 10MC NylonMC NylonThrough Hole1515 ～ 457.5 ～ 22.5
1 6 Days 10MC NylonMC NylonThrough Hole2020 ～ 6010 ～ 30
1 6 Days 10MC NylonMC NylonThrough Hole2525 ～ 7512.5 ～ 37.5
1 6 Days 10PolyacetalPolyacetalCountersunk Holes1020 ～ 4010 ～ 30
1 6 Days 10PolyacetalPolyacetalCountersunk Holes1224 ～ 4812 ～ 36
1 6 Days 10PolyacetalPolyacetalCountersunk Holes1530 ～ 6015 ～ 45
1 6 Days 10PolyacetalPolyacetalCountersunk Holes2040 ～ 8020 ～ 60
1 6 Days 10PolyacetalPolyacetalCountersunk Holes2550 ～ 10025 ～ 75
1 6 Days 10MC NylonMC NylonCountersunk Holes1020 ～ 4010 ～ 30
1 6 Days 10MC NylonMC NylonCountersunk Holes1224 ～ 4812 ～ 36
1 6 Days 10MC NylonMC NylonCountersunk Holes1530 ～ 6015 ～ 45
1 6 Days 10MC NylonMC NylonCountersunk Holes2040 ～ 8020 ～ 60
1 6 Days 10MC NylonMC NylonCountersunk Holes2550 ～ 10025 ～ 75
1 6 Days 10PolyacetalPolyacetalThrough Hole612 ～ 246 ～ 18
1 6 Days 10PolyacetalPolyacetalThrough Hole816 ～ 328 ～ 24
1 6 Days 10PolyacetalPolyacetalThrough Hole1020 ～ 4010 ～ 30
1 6 Days 10PolyacetalPolyacetalThrough Hole1224 ～ 4812 ～ 36
1 6 Days 10PolyacetalPolyacetalThrough Hole1530 ～ 6015 ～ 45
1 6 Days 10PolyacetalPolyacetalThrough Hole2040 ～ 8020 ～ 60
1 6 Days 10PolyacetalPolyacetalThrough Hole2550 ～ 10025 ～ 75
1 6 Days 10MC NylonMC NylonThrough Hole612 ～ 246 ～ 18
1 6 Days 10MC NylonMC NylonThrough Hole816 ～ 328 ～ 24
1 6 Days 10MC NylonMC NylonThrough Hole1020 ～ 4010 ～ 30
1 6 Days 10MC NylonMC NylonThrough Hole1224 ～ 4812 ～ 36
1 6 Days 10MC NylonMC NylonThrough Hole1530 ～ 6015 ～ 45
1 6 Days 10MC NylonMC NylonThrough Hole2040 ～ 8020 ～ 60
1 6 Days 10MC NylonMC NylonThrough Hole2550 ～ 10025 ～ 75
1 6 Days 10PolyacetalPolyacetalCounterbored Hole1020 ～ 4010 ～ 30
1 6 Days 10PolyacetalPolyacetalCounterbored Hole1224 ～ 4812 ～ 36
1 6 Days 10PolyacetalPolyacetalCounterbored Hole1530 ～ 6015 ～ 45
1 6 Days 10PolyacetalPolyacetalCounterbored Hole2040 ～ 8020 ～ 60
1 6 Days 10PolyacetalPolyacetalCounterbored Hole2550 ～ 10025 ～ 75
1 6 Days 10MC NylonMC NylonCounterbored Hole1020 ～ 4010 ～ 30
1 6 Days 10MC NylonMC NylonCounterbored Hole1224 ～ 4812 ～ 36
1 6 Days 10MC NylonMC NylonCounterbored Hole1530 ～ 6015 ～ 45
1 6 Days 10MC NylonMC NylonCounterbored Hole2040 ～ 8020 ～ 60
1 6 Days 10MC NylonMC NylonCounterbored Hole2550 ～ 10025 ～ 75

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  1. 1

Back to the Category Plastic Washers/Plastic Sleeves

Technical Drawing - Plastic Washers

Square Resin Washers/POM/MC Nylon:Related Image
Open the technical drawing in the new window

Specification Tables - Plastic Washers

■One Through Hole
Part NumberB
1mm Increment		P
0.5mm Increment
(P≤B/2)		TScrew Nominal Dia.dUnit Price
TypeAWSRJJWSRJM
WSRJJ
WSRJM		66~203.0~10.0233.5  
88~254.0~12.5333.5  
1010~305.0~15.0444.5  
1212~356.0~17.5544.5  
1515~457.5~22.5655.5  
2020~6010.0~30.0866.5  
2525~7512.5~37.51089  

■Two Through Holes
Part NumberB
1mm Increment		P
0.5mm Increment
(P≤B-2P1)		TScrew Nominal Dia.dP1Unit Price
TypeAWSRRJWSRRM
WSRRJ
WSRRM		612~246.0~18.0233.53  
816~328.0~24.0333.54  
1020~4010.0~30.0444.55  
1224~4812.0~36.0544.56  
1530~6015.0~45.0655.57.5  
2040~8020.0~60.0866.510  
2550~10025.0~75.0108912.5  

■Two Countersunk Holes
Part NumberB 1mm IncrementP 0.5mm Increment (P≤B-2P1)TScrew Nominal Dia.dd1hP1Unit Price
TypeAWSRPJWSRPM
WSRPJ
WSRPM		1020~4010.0~30.0333.57.525  
1224~4812.0~36.0444.59.52.56  
1530~6015.0~45.0455.511.537.5  
2040~8020.0~60.0566.513.53.510  
2550~10025.0~75.068919512.5  

■Two Counterbored Holes
Part NumberB
1mm Increment		P
0.5mm Increment
(P≤B-2P1)		TScrew Nominal Dia.dd1hP1Unit Price
TypeAWSRZJWSRZM
WSRZJ
WSRZM		1020~4010.0~30.0633.56.545  
1224~4812.0~36.0844.5856  
1530~6015.0~45.0855.59.567.5  
2040~8020.0~60.01066.511710  
2550~10025.0~75.0128914912.5  

Alterations - Plastic Washers

Square Resin Washers/POM/MC Nylon:Related Image
 

Basic information

Shape Square Washers Dimension Selecting Method Dimension Configurable Type Sale Type Sold Separately

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Basic Attributes

  • Material

    • MC Nylon
    • Polyacetal

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  • Material Detail

    • MC Nylon
    • Polyacetal

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  • Hole Type

    • Counterbored Hole
    • Countersunk Holes
    • Through Hole

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  • Width A(mm)

    • 6
    • 8
    • 10
    • 12
    • 15
    • 20
    • 25

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  • B(mm)

     [6-100/1mm Unit(s)]

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  • P(mm)

     [3-75/0.5mm Unit(s)]

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  • Type

    • WSRJJ
    • WSRJM
    • WSRPJ
    • WSRPM
    • WSRRJ
    • WSRRM
    • WSRZJ
    • WSRZM

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    • 6 Days or Less

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Optional Attributes

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.

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