BIS Certification for Cylindrical Rollers for Rolling Bearings IS 9202:2020

Cylindrical roller bearings are essential components in modern mechanical systems, designed to support heavy radial loads and operate at higher speeds with reduced friction. At the core of these bearings lie cylindrical rollers—precision-engineered rolling elements that determine the overall performance, durability, and reliability of the bearing assembly.

To ensure standardized quality and performance across all applications, the Bureau of Indian Standards (BIS) mandates that all cylindrical rollers used in rolling bearings conform to IS 9202:2020. This standard establishes the technical requirements, material specifications, and dimensional tolerances for cylindrical rollers and is a key part of India's broader effort to improve the quality and safety of critical engineering components.

Understanding Cylindrical Rollers and Their Applications

Cylindrical rollers are shaped like cylinders with precisely controlled diameters and lengths. They are typically used in cylindrical roller bearings, which are characterized by high radial load capacity and the ability to support high-speed rotation. These bearings are commonly found in:

● Machine tools

● Electric motors

● Automotive transmissions

● Wind turbines

● Gearboxes and pumps

● Railway and heavy-duty industrial machinery

Depending on the design, these bearings may have single or double rows of rollers, and they can be separable or non-separable. Their versatility and mechanical robustness make them a preferred choice in critical, high-performance systems.

IS 9202:2020 – Indian Standard for Cylindrical Rollers

The Indian Standard IS 9202:2020 sets out the comprehensive requirements for cylindrical rollers used in rolling bearings. It ensures consistency in manufacturing and performance, supporting interchangeability and reliability across diverse sectors.

This standard includes specifications for:

● Material properties: The rollers are generally made from high-carbon chromium bearing steel or other materials that meet hardness, toughness, and wear resistance criteria.

● Surface finish: To reduce friction and prevent premature wear, the surface must meet strict roughness and finish quality requirements.

● Dimensional tolerances: Precise limits on length, diameter, roundness, and taper ensure the roller’s proper fit and function within the bearing assembly.

● Shape accuracy: Parameters like crowning or end rounding are tightly controlled to prevent stress concentrations and misalignment.

● Hardness and heat treatment: Rollers must undergo proper heat treatment processes to achieve the desired hardness, depth of case, and microstructure for durability.

By conforming to IS 9202:2020, manufacturers can ensure their cylindrical rollers meet the rigorous demands of modern engineering applications.

BIS Certification Requirement and Legal Compliance

Under the BIS (Conformity Assessment) Regulations, 2018, cylindrical rollers used in rolling bearings are required to be certified and marked with the ISI Standard Mark. This certification falls under Scheme-I of Schedule-II, and it is mandatory for both domestic manufacturers and importers.

To legally sell or distribute cylindrical rollers in India:

● The manufacturer must obtain a BIS license confirming compliance with IS 9202:2020.

● The certified products must bear the Standard Mark (ISI mark), which is a symbol of conformity and trust.

● Each batch must meet the quality control and testing guidelines laid down by BIS.

This ensures that only verified, high-quality products enter the Indian market, protecting consumers, industries, and infrastructure from substandard components.

Certification Process

The BIS certification process for cylindrical rollers involves several steps to verify compliance with IS 9202:2020.

  1. Application Submission: Manufacturers must submit a detailed application through the BIS online portal, providing product specifications, test reports, and manufacturing details.

  2. Factory Audit and Sampling: BIS officials conduct a thorough inspection of the manufacturing site, assessing quality control systems and collecting product samples.

  3. Laboratory Testing: Samples are tested in BIS-recognized labs to verify that they meet all technical parameters outlined in the standard.

  4. License Issuance: Upon successful evaluation, BIS issues a license allowing the use of the ISI mark.

  5. Surveillance and Renewal: Periodic audits and random sampling ensure continued compliance.

This system ensures transparency, accountability, and consistency across the supply chain.

To Know The Process in Detail, Please Visit:

Under BIS Registration Products ISI and CRS

Documents Required for BIS Certification

To apply for BIS certification, manufacturers need to submit the following documents:

●  Application form

●  Manufacturing process details

●  Quality control plan

●  Test reports from BIS-approved laboratories

●  Factory layout and equipment details

●  Proof of business registration

●  Product specifications and technical details

●  Declaration of conformity to Indian standards

Additionally, manufacturers may be required to provide proof of compliance with environmental and safety regulations, depending on the specific type of product being certified.

BIS ISI Mark Certification Costing And Timeline

BIS ISI Mark Certification Costing And Timeline

Conclusion

Cylindrical rollers are much more than simple mechanical elements—they are the heart of critical bearing systems in machines that power industries. With the enforcement of IS 9202:2020 through mandatory BIS certification, India is ensuring that only high-quality, performance-tested rollers are used in precision applications.

Whether you are a manufacturer aiming to expand into regulated markets or an industry buyer looking for trusted components, compliance with BIS standards is not just a legal obligation—it is a mark of excellence.