Two dimensions identify the basic size
An O-ring is described by its inside diameter and cross-section diameter. State both values and their units. Cross-section is the thickness of the ring itself, not its overall outside diameter. Preserve a standard size or manufacturer part reference if one is available.
Metric sizes and dash numbers
O-ring standards can use different size systems. AS568 uses size-identification dash numbers with defined dimensions and tolerances. Keep the standard name alongside the number, and avoid assuming a nearby metric size is an exact replacement.
Material and hardness
Size alone does not identify the complete O-ring specification. Record the specified material or compound and hardness where available. The manufacturer’s compatibility information relates to the operating environment and material. Colour is insufficient to establish a compound or its suitability.
O-ring enquiries in Chennai
Send South India Bearing Co. the inside diameter, cross-section, size standard or part code, specified material, hardness and quantity. For kits, include the kit reference instead of describing only the box. Our O-ring page provides range information and catalogue links for preparing the enquiry.
Related products and catalogues
Browse the relevant South India Bearing Co. product pages for range details, manufacturer catalogues and quotation enquiries.