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O-Ring BR Backup Ring (Polytetrafluoroethylene Resin) JIS-B-2407 (Part Numbers)
- Volume Discount
A backup ring made of polytetrafluoro ethylene plastic.
(i)Caution
- Some of the items are scheduled to be discontinued as of end of March in 2023. The manufacturer keep the items produced but they are not available with Misumi.
There are not the replacement items and the plan to resumption of sale. Please check the quotation and order screen for details.
Japanese Only
Part Number
Configured Part Number is shown.
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Product Details - CAD Data unavailable
| Part Number |
|---|
| BR-P60-T2 |
| BR-P65-T2 |
| BR-P70-T2 |
| BR-P75-T3 |
| BR-P80-T2 |
| BR-P90-T2 |
| BR-P110-T2 |
| BR-P115-T2 |
| BR-P140-T2 |
| BR-P150-T2 |
| Part Number | Standard Unit Price | Minimum order quantity | Volume Discount | Days to Ship | RoHS | I.D. d1 (mm) | Thickness d2 (mm) | Outer Dia. D (mm) | Nominal Number | Nominal No. of O-Rings | Outer Diameter D (φ) | Shape |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
MYR 18.20 | 1 Piece(s) | Available | 4 Day(s) or more | 10 | 60 | 5 | 70 | P60 | P60 | 70 | T2 (Bias Cut) | |
MYR 18.42 | 1 Piece(s) | Available | 4 Day(s) or more | 10 | 65 | 5 | 75 | P65 | P65 | 75 | T2 (Bias Cut) | |
MYR 18.82 | 1 Piece(s) | Available | 17 Day(s) or more | 10 | 70 | 5 | 80 | P70 | P70 | 80 | T2 (Bias Cut) | |
MYR 20.06 | 1 Piece(s) | Available | 17 Day(s) or more | 10 | 75 | 5 | 85 | P75 | P75 | 85 | T3 (Endless) | |
MYR 21.57 | 1 Piece(s) | Available | 4 Day(s) or more | 10 | 80 | 5 | 90 | P80 | P80 | 90 | T2 (Bias Cut) | |
MYR 23.77 | 1 Piece(s) | Available | 4 Day(s) or more | 10 | 90 | 5 | 100 | P90 | P90 | 100 | T2 (Bias Cut) | |
MYR 33.76 | 1 Piece(s) | Available | 4 Day(s) or more | 10 | 110 | 5 | 120 | P110 | P110 | 120 | T2 (Bias Cut) | |
MYR 34.89 | 1 Piece(s) | Available | 17 Day(s) or more | 10 | 115 | 5 | 125 | P115 | P115 | 125 | T2 (Bias Cut) | |
MYR 69.38 | 1 Piece(s) | Available | 10 Day(s) or more | 10 | 140 | 5 | 150 | P140 | P140 | 150 | T2 (Bias Cut) | |
MYR 52.98 | 1 Piece(s) | Available | 62 Day(s) or more | 10 | 150 | 5 | 160 | P150 | P150 | 160 | T2 (Bias Cut) |
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Basic Information
| Standard | BR Back-Up Ring | Type of Material | PTFE Resin |
|---|
Specification/Dimensions
-
I.D. d1(mm)
-
Thickness d2(mm)
-
Nominal Number
-
Nominal No. of O-Rings
-
Outer Diameter D(φ)
-
Shape
- T1 (Spiral)
- T2 (Bias Cut)
- T3 (Endless)
-
type
- BR-T1
- BR-T2
- BR-T3
Days to Ship
-
- All
- 4 Day(s) or Less
- 10 Day(s) or Less
- 17 Day(s) or Less
- 62 Day(s) or Less
Specify Alterations
- The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .
Frequently asked question (FAQ)
- Question: What is the primary function of an O-Ring BR Backup Ring?
- Answer: The O-ring BR backup ring is designed to prevent extrusion of O-rings under high-pressure conditions. It supports the O-ring in grooves, ensuring a stable seal even in high-pressure hydraulic or pneumatic systems.
- Question: Why is PTFE used for this backup ring?
- Answer: PTFE (polytetrafluoroethylene) provides excellent chemical resistance, low friction, and thermal stability, making the PTFE backup ring suitable for use with oils, fuels, water, and various industrial liquids over a wide temperature range (-60°C to +220°C).
- Question: How does the backup ring enhance O-ring performance?
- Answer: By preventing O-ring extrusion, the BR backup ring maintains proper O-ring deformation and contact with mating surfaces, improving seal longevity and preventing leakage in high-pressure applications.
- Question: What pressure ranges are suitable for using a PTFE BR backup ring?
- Answer: The O-ring BR backup ring is engineered for high-pressure applications, typically in hydraulic and pneumatic systems where standard O-rings might extrude or deform. Exact allowable pressure depends on O-ring size and groove design.
- Question: Can the BR backup ring be used with all O-ring materials?
- Answer: Yes. The PTFE BR backup ring is compatible with a variety of O-ring materials including NBR, FKM, EPDM, and silicone. Its chemical inertness ensures no reaction with most elastomers.
- Question: What standards does this backup ring conform to?
- Answer: This O-ring backup ring conforms to JIS B 2407, ensuring reliable dimensions, tolerances, and performance for industrial sealing applications.
- Question: What are the advantages of using a PTFE BR backup ring over other materials?
- Answer: PTFE backup rings offer low friction, chemical resistance, thermal stability, and non-stick properties, making them ideal for high-pressure, high-temperature, and chemically aggressive environments compared to nylon or polyurethane backup rings.
Additional Products in this Category
- O-Ring, GS, for Fixing
- O-Ring JASO F404 2000 (for Motion and Retention)
- O-Ring KS for Exercise, Cylindrical Face Mounting
- O-Ring SS Standard
- O-Ring, ISO Equivalent General Industrial Use Series (Static application)
- O-Ring NOK Iron Rubber P Series (Static/Dynamic application)
- JASO F404 (for Motion, Cylindrical Surface Fixing and Flat Surface Mount)
- JIS B 2401-1 G (for Mounting Cylindrical/Flat Surfaces)
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