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    MaisonProduitsJoints toriques en caoutchoucJoints toriques en caoutchouc en vrac pour des solutions d'étanchéité durables et étanches
    custom colored o rings supplier
    custom colored o rings supplier

    Joints toriques en caoutchouc

    Joints toriques en caoutchouc en vrac pour des solutions d'étanchéité durables et étanches

    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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    • Description
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    Notre 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.

    Notre 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

    ArticleSpécification
    MatérielNBR, FKM, Silicone, EPDM, HNBR, FFKM, CR, NR, PTFE, ect
    Dureté20-90 Shore A and custom available
    Working Speed
    ≤15 m/s, depending on application conditions
    Pression de service
    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
    Résistance des médias
    Hydraulic oil, gas, water, mud, crude oil, emulsified liquids, water-ethylene glycol, and selected acids; compatibility varies by material
    CouleurBlack/Brown/Grey/Red/Green/White/Customize
    Size RangeID: 1～1000 mm, CS: 1.02 ～ 20 mm
    Standard
    AS568, PGS, GB, and custom standards available
    ApplicationCylinder 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%, et

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

    The recommended compression rate is 15%–30% for static seals et 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 et 0.8 times for static seals.

    O-Rings Accurate Measurement:

    1. Ne mesurez pas les joints toriques avec une règle.

    2. Utilisez un pied à coulisse pour obtenir avec précision le diamètre intérieur (DI), le diamètre extérieur (DE) et la section transversale (CS).

    3. Les joints toriques en caoutchouc se déforment facilement. Une mesure précise garantit un ajustement parfait et empêche les fuites.

    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

    Remarque:

    • 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.

    Processus de production

    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.

    Service d'emballage, de paiement et d'expédition

    • EmballerNous proposons des cartons, des palettes et des caisses en bois standard. Des emballages sur mesure sont disponibles sur demande afin de protéger efficacement les marchandises lors de différents types d'expédition.
    • Modes de paiement :Règlement multidevises (CNY, USD, EUR, etc.). Plusieurs options de paiement, dont virement bancaire et PayPal. Le virement bancaire local est disponible dans certains pays pour des transactions plus rapides.
    • Mode de livraison :Nous proposons des services de transport express international, de fret aérien, maritime et ferroviaire. Vous pouvez également faire appel à votre propre transporteur pour des modalités de livraison flexibles.

    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.

    FAQ

    • 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.

    • Quels sont les modes de défaillance courants des joints toriques et comment les identifier ?

      - Déformation par compression : section transversale aplatie et surfaces de contact planes, dues à la chaleur ou à une compression excessive ; - Extrusion (mordançage) : bords irréguliers et effilochés du côté basse pression, dus à un jeu ou une pression excessifs ; - Défaillance en spirale : entailles en spirale à 45° sur la surface, fréquentes dans les pistons à longue course lorsque les pièces glissent et roulent simultanément ; - Abrasion : surfaces rayées/usées dues à des surfaces d’accouplement rugueuses ou à une lubrification insuffisante ; - Attaque chimique : gonflement, fissuration ou ramollissement dus à des milieux incompatibles.

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    Bulk Rubber O-Rings Durable O-Ring Sealing Parts Leak Proof Rubber Seals Joints toriques en caoutchouc

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