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Technical documentation

Adjustments

The proper functioning of a ball bearing largely depends on the quality of adjustments.

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Bearing cages

The bearing cage is to keep the balls from contacting each other, on the bearing tracks. There are several types of cages.

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Bearing manufacturing steps

Discover here how to manufacture a deep groove ball bearing step by step

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Corner radii

Limit dimensions of radii between the faces of the bearing and its diameters.

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Dimensional tolerances

Description of the tolerances concerning the dimensions of a bearing as well as the circularity of its rotation.

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General recommendations

Use requirements of JESA ball bearings.

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Heat treatments

Information on the types of heat treatments according to the temperatures of use

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Internal clearance

Definition and description of the various internal clearances of ball bearings.

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Load capacity and lifetime

Definition of dynamic load. How to calculate the lifetime of a ball bearing?

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Lubrication

Technical information concerning the lubrication means.

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Rings and balls materials

An overview of the usual materials used for the manufacturing of bearings.

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Rust prevention

Solutions of protection of the ball bearing rings against corrosion.

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Sealing / protection

Shields and seals can be customised in accordance with the desires of the customer (colour, marking, etc).

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Steenox technology

The innovative combination of a martensitic stainless steel and a special heat treatment

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Usable technical plastics

Overview of usable technical plastics for ball bearings applications.

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