In industrial machinery, rolling bearings are integral components that ensure efficient rotational motion with minimal friction. However, equally important to the function and longevity of these bearings are the accessories that support their secure installation—particularly adapter sleeves and withdrawal sleeves.
These accessories are critical for mounting bearings with tapered bores onto cylindrical shafts, ensuring proper alignment, secure fitment, and ease of maintenance.
To ensure consistent quality, safety, and dimensional accuracy, the Bureau of Indian Standards (BIS) has introduced IS 16605 (Part 1):2018, an Indian Standard aligned with ISO 2982-1:2013. It specifies the boundary dimensions and tolerances for adapter sleeve assemblies and withdrawal sleeves, setting a uniform benchmark for manufacturers, suppliers, and end-users.|
Adapter Sleeves are used to mount bearings with tapered bores onto plain cylindrical shafts. These sleeves are supplied as complete assemblies, typically including a lock nut and locking device such as a washer or clip. They simplify mounting and dismounting processes while allowing axial positioning adjustments of the bearing on the shaft.
Withdrawal Sleeves, on the other hand, are used for mounting bearings on stepped shafts. These are pressed beneath the inner ring of the bearing and allow the bearing to be withdrawn without causing damage. The thread required for a lock nut is located on the larger cone diameter of the sleeve. However, unlike adapter sleeves, lock nuts and locking devices are not supplied with withdrawal sleeves and must be procured separately.
These components are widely used across sectors like electric motors, gearboxes, pumps, compressors, and heavy machinery where precise bearing installation and removal are essential for equipment performance and maintenance.
The Indian Standard IS 16605 (Part 1):2018, which adopts the international standard ISO 2982-1:2013, focuses on the dimensions and compatibility of adapter sleeves and withdrawal sleeves. It ensures that these bearing accessories conform to precise mechanical and dimensional specifications that facilitate interchangeability and safe usage.
This standard not only promotes dimensional conformity but also facilitates global trade by ensuring Indian products meet internationally recognized specifications.
To reinforce quality assurance across the bearing components industry, the Ministry of Commerce and Industry has introduced the Bearing Components and Accessories (Quality Control) Order, 2025. Under this order, products categorized as "Rolling Bearings Accessories Dimensions for Adapter Sleeve Assemblies and Withdrawal Sleeves" must comply with IS 16605 (Part 1):2018.
This move aims to eliminate substandard products from the market, improve user confidence, and align domestic manufacturing with global quality norms.
To obtain BIS certification for adapter sleeves and withdrawal sleeves under IS 16605 (Part 1):2018, manufacturers must undergo a structured assessment, which includes:-
Additionally, manufacturers may be required to provide proof of compliance with environmental and safety regulations, depending on the specific type of product being certified.
For manufacturers, obtaining BIS certification is not just a regulatory requirement—it is a competitive advantage. It affirms a commitment to quality, facilitates access to both domestic and international markets, and builds customer trust.
For consumers and industry buyers, the ISI mark serves as a reliable indicator of product quality, safety, and compatibility. It ensures that the rolling bearing accessories they purchase will perform reliably under demanding operational conditions.
Additionally, BIS certification supports the broader goals of standardization, safety, and Make in India initiatives, contributing to India's growing reputation as a center for high-quality industrial manufacturing.
Adapter and withdrawal sleeves are small components that play a big role in the efficiency and reliability of rolling bearings in critical applications. With the implementation of IS 16605 (Part 1):2018 under the Quality Control Order, 2025, the Government of India is ensuring that these essential components meet the highest standards of precision and performance.
BIS certification not only protects end-users from substandard products but also empowers Indian manufacturers to thrive in a competitive, quality-driven market.