High precision ball bearings

With dimensions ranging from a 1 mm bore diameter to a 450 mm external diameter, ADR high precision ball bearings allow you to meet the most stringent technical standards while maintaining an exceptional level of performance.

Each product is developed to order and scrupulously respects the specifications of its customers in order to offer them the best solutions.

ADR and its ball bearings excel in many areas, thanks to their specific characteristics and their technical mastery.

• High speed and accurate rotation combined with an extremely low vibratory level.
• Low friction torque and long-life span.
• Control of the complete production process and preloading of the pairs of bearings.
• Limitation of geometric faults and alignments as well as an increase in angular stiffness and a reduction of the overall dimensions through a “super duplex” version.
• Use of specific materials adapted to each application: materials, specific or conventional steel, treatment, lubrication, balls, etc.

Deep groove ball bearings are the most conventional ball bearing for multiple applications. Its grooves are complete tracks with symmetrical shoulders. These ball bearings can sustain mainly radial loads and support axial loads in both directions.

Deep groove ball bearings can be mounted in pairs, preloaded at ADR to meet application requirements and operate at a specified contact angle.

• Metric series
• Inch series
• Metric series with flanged outer ring
• Inch series with flanged outer ring

For more information, please contact our technical team or download our catalogue down below.

At ADR there are two types of angular contact ball bearings:

• Non-separable angular contact ball bearings

This design allows the integration of more balls than a deep groove ball bearing thus increasing the load ratings. These ball bearings can be constructed with large contact angles. This increases the ball bearing’s axial rating within the limit of the groove depths and the ellipsoidal truncation.

These ball bearings are usually mounted in a preloaded pair to place them in angular contact and cancel axial and radial internal clearances. For utilization as a single ball bearing, the axial clearance must be compensated.

• Separable angular contact ball bearings

Separable angular contact ball bearings are delivered mounted, but their inner ring may be separated from the rest of the ball bearing to facilitate its mounting on the system.

They have the same properties as non-separable angular contact ball bearings. 

Thin section ball bearings exists in five different types :

• Inch series
• Inch series super duplex
• Metric series
• Metric series super duplex
• Super thin section four points of contact

 Super duplex ball bearings improve the rotating precision and the friction torque compared to a conventional pair. Operation is improved, better performances are obtained and ball bearing life is longer.