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    HeimProdukteO-Ring-GummidichtungenO-Ringe aus Gummi in großen Mengen für dauerhafte, auslaufsichere Dichtungslösungen
    custom colored o rings supplier
    custom colored o rings supplier

    O-Ring-Gummidichtungen

    O-Ringe aus Gummi in großen Mengen für dauerhafte, auslaufsichere Dichtungslösungen

    1. Our bulk rubber seal O-rings are designed for durable, long-lasting sealing across industrial, equipment, and maintenance applications.
    2. Each ring helps create a tight connection to reduce leaks and support reliable daily operation.
    3. As a professional sealing supplier, we offer flexible bulk quantities to meet manufacturing, repair, and resale needs.

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    Unser Rubber O-Rings are durable elastomer sealing components designed to provide reliable, leak-proof sealing in a wide range of industrial applications. Featuring a circular cross-section, these rubber seal rings create an effective seal through controlled compression in precision-machined grooves, helping prevent the leakage of liquids, oils, and gases.

    We supply industrial O-rings, rubber sealing rings, oil-resistant O-rings, waterproof rubber seals, and custom O-ring seals in various rubber materials, sizes, hardness levels, and specifications. Available materials include NBR, FKM, EPDM, silicone, and other elastomers to meet different temperature, chemical resistance, and operating requirements.

    Unser custom rubber O-rings are suitable for static and dynamic sealing in hydraulic systems, pneumatic equipment, automotive components, pumps, valves, pipelines, and industrial machinery. As a professional rubber O-ring manufacturer and supplier, we offer bulk O-ring supply, custom dimensions, and tailored sealing solutions for diverse industrial applications.

    O- Ring Technical Specifications

    ArtikelSpezifikation
    MaterialNBR, FKM, Silicone, EPDM, HNBR, FFKM, CR, NR, PTFE, ect
    Härte20-90 Shore A and custom available
    Working Speed
    ≤15 m/s, depending on application conditions
    Betriebsdruck
    0–30 MPa; actual rating depends on gland design and material
    Compression Set
    ≤25% after 22 h at 70°C
    Temp. Range
    -60°C to +250°C, depending on material selection
    Feature
    Temperature, oil, and high-pressure resistance
    Medienwiderstand
    Hydraulic oil, gas, water, mud, crude oil, emulsified liquids, water-ethylene glycol, and selected acids; compatibility varies by material
    FarbeBlack/Brown/Grey/Red/Green/White/Customize
    Size RangeID: 1～1000 mm, CS: 1.02 ～ 20 mm
    Standard
    AS568, PGS, GB, and custom standards available
    AnwendungCylinder Seal, Pipeline Seals, Automotive Seals, Aerospace Seals, Food-Grade Seals
    CertificateISO9001/IATF16949
    Packing
    Plastic bags or carton boxes with pallets; custom packaging available

    O-Ring Seal Groove Design Reference

    This diagram outlines recommended O-ring groove design parameters.

    The groove filling rate should be 65%–85%, Und

    the compression rate is calculated as (wire diameter − groove depth) / wire diameter × 100%.

    The recommended compression rate is 15%–30% for static seals Und 10%–20% for dynamic seals.

    The groove width is 1.15 times the wire diameter, while the groove depth is 0.85 times the wire diameter for dynamic seals Und 0.8 times for static seals.

    O-Rings Accurate Measurement:

    1. O-Ringe dürfen nicht mit einem Lineal gemessen werden.

    2. Verwenden Sie einen Messschieber, um Innendurchmesser (ID), Außendurchmesser (OD) und Querschnitt (CS) genau zu bestimmen.

    3. Gummi-O-Ringe verformen sich leicht. Genaue Messungen gewährleisten einen korrekten Sitz und verhindern Leckagen.

    O-Ring ID size tolerance for GB/T 3452.1-2005 Standard

    Standard d₁(mm)G-Series Tolerance ±(mm)A-Series Tolerance ±(mm)
    1.8~5.00.130.08
    5.3~8.50.16~0.170.09~0.10
    8.7~12.50.18~0.200.10~0.12
    13.2~18.00.21~0.250.12~0.14
    19.0~26.50.25~0.300.14~0.17
    27.3~37.50.31~0.340.17~0.20
    38.7~50.00.34~0.400.20~0.23
    51.5~67.00.41~0.480.23~0.27
    69.0~90.00.49~0.600.27~0.33
    92.5~1250.61~0.780.33~0.42
    132~1800.82~1.020.42~0.54
    190~2501.06~1.340.54~0.70
    258~3551.37~1.820.70~0.95
    365~5001.86~2.480.95~1.30

    Bemerkung:

    • G series: General purpose O-rings, looser tolerance for normal hydraulic & pneumatic applications
    • A series: Aerospace grade O-rings, tighter ID tolerance for high-precision, high-reliability sealing

    Cross-section tolerance:
    1.8:±0.08mm 2.65:±0.09mm 3.55:±0.10mm 5.3:±0.13mm 7.0:±0.15 mm.

    We have strict size inspection for each order .Tight tolerance control guarantees consistent performance batch after batch.

    Application for O- rings rubber seal

    O‑rings are fitted on various mechanical equipment to provide sealing under specified temperature and pressure conditions, as well as in different liquid and gas media, for both static and dynamic applications.

    A wide range of sealing elements are extensively used in machine tools, ships, automobiles, aerospace equipment, metallurgical machinery, chemical machinery, construction machinery, mining machinery, petroleum machinery, plastic machinery, agricultural machinery, and various instruments and meters.

    Oil &Gas
    Semiconductor
    Aerospace
    Healthcare &Medical
    Automotive
    Construction &Mining Equipment
    Renewable Energy& Power
    Food & Beverage
    Robotics
    Processing Equipment
    Manufacturing &MachineTools
    Marine Equipment & Construction

    Features & Advantages for the O-ring Rubber Sealing

     ✅ Reliable sealing performance for static & dynamic applications 

    ✅ Wide temperature & media resistance range

     ✅ Simple installation, compact structure 

    ✅ Cost-effective, reusable under proper working conditions 

    ✅ OEM & ODM service available

    Product Certifications

    Our rubber seals quality can meet ISO9001, IATF16949, RoHS, REACH, FDA quality requirements .Strict compliance ensures stable & consistent quality and long-lasting sealing performance, minimizing breakdowns and saving your trouble of frequent replacement.

    Our factory Production equipment

    We are equipped with complete production facilities including mixing machines, CNC machines, injection molding machines, cryogenic deflashing machines and post-curing ovens. In-house mold making and automated workflows boost efficiency to support fast order delivery.

    Produktionsprozess

    We follow a complete standardized workflow: raw material, mixing, cooling, cutting, molding, deflashing, secondary curing, multi-stage QC, packing and shipment. Every step is strictly and efficiently controlled with comprehensive inspections. We respond to orders quickly and guarantee on-time delivery with qualified products.

    Verpackung / Zahlung / Versandservice

    • PaketWir bieten Standardkartons, Paletten und Holzkisten an. Kundenspezifische Verpackungen sind auf Anfrage erhältlich, um die Waren bei verschiedenen Transporten optimal zu schützen.
    • Zahlungsmethoden:Abrechnung in verschiedenen Währungen (CNY, USD, EUR usw.). Mehrere Zahlungsmöglichkeiten, darunter Banküberweisung und PayPal. Für schnellere Transaktionen ist in einigen Ländern auch eine lokale Banküberweisung möglich.
    • Liefermethode:Wir bieten internationalen Express-, Luftfracht-, Seefracht- und Bahntransport an. Für flexible Lieferbedingungen können Sie auch Ihren eigenen Spediteur beauftragen.

    About Company Products

    We manufacture a full range of sealing products: O-rings and X-rings in NBR, EPDM, FKM, FFKM, VMQ, HNBR; oil seals of various styles including TC, TG, VC, TB, TA, VB, SB, SA, VA, DC, HTC. We also supply ED seals, bonded seals, wiper seals, gaskets, washers, rubber balls, and custom special-shaped sealing profiles. Custom non-standard rubber seals are available to match your unique working conditions.

    Häufig gestellte Fragen

    • How does an O-ring seal?

      An O-ring is an automatic, double-acting sealing element. Pre-compression in the groove (radial or axial) creates initial contact pressure for zero-pressure sealing. Once media pressure is applied, it pushes the ring against the low-pressure groove wall, and contact pressure rises with system pressure (pressure energisation). As long as contact pressure exceeds media pressure, there is no leakage.

    • What is the maximum size of molded parts you can produce?

      Our 350-ton molding press supports large-size molding, with a maximum part dimension of 102” × 72” for oversized rubber and polyurethane components.

    • What is the proper squeeze (compression ratio)?

      Squeeze = (CS − groove depth) / CS × 100%. For radial (cylindrical) static seals and reciprocating dynamic seals, typically 10–15%; for axial (face) static seals, 15–30%. Rotary seals use lower squeeze due to frictional heat. Too little squeeze leaks; too much accelerates compression set.

    • Can you provide batch test reports and product traceability?

      We supply complete batch certification, COA and COC for every shipment. Our ERP system supports full product traceability, tracking finished parts back to raw material batches and compound records.

    • What are the key points of gland design?

      Gland depth sets the squeeze; gland width must leave room for deformation (typically about 1.3–1.5 × CS) to avoid overfill; control assembly clearance to prevent extrusion; and use proper radii with smooth, burr-free surfaces.

    • Do you offer O-ring kits / assortment kits?

      Yes, we supply O-ring assortment kits with multiple sizes packed in plastic boxes. Materials like NBR, FKM,VMQ,EPDM,HNBR,PTFE are available.

    • How do I prevent O-ring extrusion under high pressure?

      Reduce mating clearance, increase hardness (80–90A for high pressure), and add a backup ring on the low-pressure side (both sides for bidirectional pressure). Elevated temperature reduces extrusion resistance, so allow a margin.

    • Was sind die häufigsten Ausfallursachen von O-Ringen und wie lassen sie sich erkennen?

      - Druckverformung: Abflachung des Querschnitts und der Kontaktflächen durch Hitze oder übermäßigen Druck; - Extrusion (Ausfransen): Ausgefranste, zerfetzte Kanten auf der Niederdruckseite durch zu großes Spiel oder zu hohen Druck; - Spiralbruch: 45°-Spiralrisse an der Oberfläche, häufig bei Kolben mit langem Hub, wenn Teile gleichzeitig gleiten und rollen; - Abrieb: Zerkratzte/abgenutzte Oberflächen durch raue Passflächen oder mangelhafte Schmierung; - Chemische Einwirkung: Quellen, Reißen oder Erweichen durch unverträgliche Medien.

    Schlagwörter:

    Bulk Rubber O-Rings Durable O-Ring Sealing Parts Leak Proof Rubber Seals Gummidichtungsringe

    vorheriger:

    Gummidichtungsringe

    nächste:

    PTFE-O-Ringe für Kfz-Verrohrung und hitzebeständige Abdichtung

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